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New summaries and reviews of papers, articles, books etc.

1.) Making up the Mind  -  Chris Frith  -  added 14 April 2009 (under Mainstream 8)  -  Freewill can have an influence but is still an illusion, although the illusory side does not appear to be well justified here.

2.) The Continuity of Mind  -  Spivey, M.  -  added 6 April 2009 (under Mainstream 8)  -  Argument for epiphenomenalism derived here from Dennett appears to be refuted by modern experiments. 

3.) Free Will is Un-Natural  -  John Bargh  - added 3 April 2009 (under Freewill 4)  -  Mostly ignores consciousness in discussing freewill and tends towards revival of behaviourism. 

4.) Whole Brain  - based on Raphael Gaillard  -  added 30 March 2009 (under Quantum Evidence 3) - Evidence for synchrony in brain related to conscious activity. 

5.) Reconstrual of "Free Will" from the agentic persepctive of social cognitive theory  -  Albert Bandura  -  added 27 March 2009 (under Freewill 4)  -  Attacks the methodology of the classic studies on which the mainstream rejection of the concept of free will is based. 

6.) Are We Free? Psychology and Freewill  -  Eds. Baer, J., Kaufman, J. & Baumeister, R.  -  added 23 March 2009 (under Freewill 4)  -  Juxtaposes chapters from mainstream determinists and dissidents. Useful for airing these minority views. 

7.) Self-Theories: The Construction of Free Will  -  Carol Dweck & Daniel Molden  -  added 16 March 2009 (under Freewill 4)  -  Study showing better academic and psychological experience of students beleiving they had freewill.

8.) The Hazards of Claiming to Have Solved the Hard Problem of Free Will  -  Shariff Azim, Jonathan Schooler, Kathleen Vohs  -  Critical of mainstream methodology with respect to freewill

9.) Organism and Machine  -  Michael Denton  -  added 3 March 2009 (under Neuroscience 2)  -  Argues the protein and large elements in living tissue are designed in a totally different way from machines. 

10.) Determined and Free   -   Myers, D.  -  added 27 February 2009 (under Freewill 3)  - Improved well being in people given more control over their daily lives.

11.) Free will, consciousness and cultured animals  -  Roy Baumeister  - added 25 February 2009 (under Freewill 3) - argues for the involvement of free will in inhibiting impulses and rational choice of options supported by an energy consuming process in the brain. 



Other recent reviews:
1.) How can psychology contribute to the freewill debate?  -  Nichols, S.  -  added 24 February 2009 (under Freewill 3)  (2.) The Unique Nature of Cosmology  -  George Ellis  -  added 17 February 2009 (under Cosmology 2)  (3.) A way for quantum benefits to survive after entanglement ends  -  based on Seth Lloyd  -  added 27 January 2009 -  (under Quantum Evidence: 3)  (4.) Are We Spiritual Machines? & The Singularity is Near  -  Ray Kurzweil  -  added 13 March 2009 (5.)Emotions Explained  -  Edmund Rolls  -  added 19 January 2009 - (under Emotions) (6.) Affective Neuroscience  -  Jaak Panksepp  -  added 4 February 2009 (under Emotions) (7.) Towards understanding the origin of genetic languages  -  Apoorva Patel  -  added 16 January 2009 - (under Origins of Life) (8.) Quantum coherence and the search for the first replicator  - Jim Al-Khalili & Johnjoe McFadden  - added 12 January 2009 - (under Origins of Life) (9.) Quantum mechanics and emergence - Seth Lloyd - added 9 January 2009 (under Origins of Life) (10.) Evidence for coherent proton tunnelling - Horsewil - added 2 January 2009  (under Quantum Evidence 3) (11.) New insights into enzyme catalysis - Scrutton - added 2 January 2009 (under Quantum Evidence 3)  (12.) Memory depends on the cytoskeleton - Mershin & Nanopoulos  - added 29 December 2008 (under Quantum Evidence) (13.) Coherent spin transfers  - Ouyang & Awschalom  -  added 23 December 2008  (Under Quantum Evidence) (14.) Studies suggestive of quantum states in organic matter - added 14 November 2008 (under Quantum Evidence) (15.&16.) Quantum coherence in photosynthetic systems - Gregory Engel - added 16 October 2008 and Taming the Quanta - Martin Plenio (under Quantum Evidence) (17.) A Quantum Origin of Life - Paul Davies  -  added 15 December 2008 - (under General Articles 5)  (18.)  Agentive phenomenal intentionality and the limits of introspection  -  Terry Horgan  -  added 4 December 2008  -  (under Philosophy)  (19.)  Beliefs about consciousness and reality  - Imants Baruss  - added 23 October (under General Articles 2) (20.) Kuhn vs. Popper - Steve Fuller - added 20 November.




Chris Frith

Making Up The Mind

Blackwell Publishing ISBN 978-1-4051-3694-5

Chris Frith starts by saying that he will show that the distinction between mental and physical is false. The distinction is claimed to be an illusion created by the brain. Everything we know comes via the brain, but there is no direct connection with the physical world of objects. The first part of the book goes over sometimes familiar ground to show that the brain works on limited and imperfect signals to create a model or picture of the world, and although it is adaptive to get it right, the picture can sometimes get it wrong. Frith does touch on the fact of how hard perception is for computers. The percception of the view of the garden from the house may seem to be a simple matter, but for a computer there is a considerable problem in distinguishing the brown of the tree trunk from the brown of the fence, and this problem increases if objects move around. The difficulties of perception have been seen as an argument for quantum computing in the brain, although of course, this is not mentioned in this book, although it is admitted that the development of computers made clear the difficulties of perception. The directness here can be viewed as an illusion. Frith goes on to say that the isolation and privacy of our personal mental worlds is also illusion, which is not at first glance apparent in the same way.

Frith admits to a very strong experience of freewill.

Frith is at great pains to stress that we can empathise the actions of others. We can press a door bell, hear the ringing and view ourselves as the agent causing this. Similarly, we can view someone else doing this and imagine their sensations.

In all this, as in so much psychological writing, there appears to be an over emphasis on illusion and false perceptions. All right, sometimes, particularly in rather artificial experiments, we think we have performed actions we have not, or have not performed actions we have performed or had incorrect visual perceptions. But the fact is that most of the time we our perceptions are right and we know whether or not we are acting, for the very good reason that it is adaptive to be right, and a species in a very frequent state of illusion would soon be instinct.


Frith’s main point is that we acquire our knowledge of other people’s minds in the same way that we acquire our knowledge of the physical world. The contact with other people’s minds is neither more or less direct than our contact with the physical world. This appears true in a sense but perhaps fails to take into account another level of uncertainty in the case of other minds. In the example of watching another person press the doorbell. There is a level of uncertainty as with all physical objects. It is possible what my brain is telling me with false. It might be an illusion where they push a changed doorbell, or maybe their hand is really a rubber hand or their real hand is being moved involuntarily by some hidden force. But assuming for the moment that we are in luck this time, and it is simply the person we know pressing the doorbell we know, there is still a problem. We can only guess at how the other person is experiencing the process. Although the latter part of Frith’s book gives may examples of how we intuit what others are thinking, there seems no doubt that we can only guess how others are experiencing the world. Furthermore life produces plenty of instances where it is quite clear where others think we are having thoughts and experiences quite different from what we are actually experiencing. Even where it is the case that we can guess the experiences and thoughts of others, it is not clear what such insight tells about the basis of consciousness or the existence or non-existence of freewill.

In his epilogue, Frith says that he is not going to try to say how subjective experience arises, but he will attempt to say what consciousness is for, or in other words why evolution has selected for it. He relates this to studies which show that we get pleasure from punishing ‘freeriders’ who benefit from being part of a group without making a fair contribution. It is certainly easy to agree that this is an adaptive characteristic for a species whose success has been based on an unusually high degree of cooperation. To both justify and get pleasure from this punishment, we have to believe that the ‘freeriders’ being punished are themselves free agents. Frith seems to merely assume that this feeling is not only adaptive but an illusion. Even if the experience of others were as transparent as he claims, it is not clear that he has offered any evidence that this must be an illusion. In fact, he appears quite critical of the famous Libet experiment. Maybe the illusion story is so deeply ingrained in the mainstream that we are not expected to ask for evidence of this.





The Continuity of Mind

Michael Spivey

Oxford University Press

Only the final chapter is discussed here. The author himself indicates that it has little bearing on the preceding chapters. He begins on an eliminatist or at least epiphenomenal tack suggesting that consciousness might be irrelevant or non-existent. The perception-action loop in the brain, inclusive of reports of conscious experience, can according to Spivey’s theory, be explained by a deterministic attractor landscape. An experiment by (1. Kolers and Brewster, 1985) using, (for this type of psychological experiment) the characteristically trivial activity of tapping fingers to music, showed that the subjects were not consciousness of a change of phase in the music. It does not seem surprising that this monotonous activity might be done on automatic pilot, while consciousness could be engaged with something else. Nevertheless, this is sufficient evidence for the author to dismiss all subjective reports as a mere ‘curiosity’. He also quotes the rather similar Libet experiments that showed readiness potentials preceding consciousness of the desire to act. He does not, however, mention that this only involved automatic pilot type finger flexing, rather than more strategic actions, where the involvement or otherwise of consciousness might be more relevant to discussions about consciousness and freewill.

In common with many who have to write about consciousness, Spivey looks to a philosopher, in this case, Daniel Dennett, for support. This introduces a certain circularity to the argument, since the type of philosopher selected can be said to have seen it as their duty to prop up the ‘Newtonian’ world view. The author quotes Dennett as talking about how self-conscious introspection can revise the memory of experiences. Spivey describes what his own consciousness is supposed to be like, which resembles what Dennett describes, saying that ‘the only time that I feel I have some sense of consciousness is when I stop what I’m thinking and self-reflect on what I was thinking a second ago, and on who or what was doing that thinking.’ He argues from this that his consciousness is filtered through memory and therefore distorted and worthless. He does not seem to notice that what he was actually conscious of at the beginning was the thinking at the moment before his pause for introspection started. He also fails to mention his experience of elements of the external world, such as the colour of the sky or the grass in the college quad, which presumably do not require introspection. Moreover, even with introspection of events filtered through memory, there is still a need to explain why we are conscious of this, whether or not these memories are accurate.

It is not fully clear from the text, but what we are seeing here may be the common consciousness studies trick or error of conflating the self and consciousness, whereas the self is merely part of the contents of consciousness. Spivey himself appears to agree with this, in that when he is thinking about something external and not introspecting he is not conscious of the self. However, this is generally ignored and as above, a deconstruction of the self is assumed to have dismissed the problem of consciousness.

At any rate, this is one place where mainstream philosophical rumination appears to be contradicted by modern scientific experimentation. Dennett/Spivey claim that consciousness comes to us via introspection and memory. However, experiments have shown that intense fears, for instance those associated with phobias, by-pass the cortex and the hippocampal system that handle memories, and instead go directly from the thalamus to the amygdala, the centre of fear and much other emotion. (2. LeDoux, 1996, 3. Jarrell et al 1987, 4. Bordi & LeDoux, 1994). This is a separate, quicker and evolutionarily much older route than that going from the thalamus via the sensory and associational cortex to the hippocampus. With the amygdala, there is no opportunity for either the hippocampus or the prefrontal to become involved before the feared object leaps into consciousness.

The author also very briefly discusses quantum consciousness ideas. He speculates on the possible effects of the superpositions of a calcium ion near a synapse, and suggests that for this to be effective, there would have to be a non-local relationship between ions in possibly thousands of neurons. This is considered unlikely, and the idea of quantum consciousness is accordingly dismissed. What he does not mention is that the model he discusses here bears no resemblance to most proposals for quantum consciousness. However, earlier references to Penrose and Jibu incorrectly imply, for those who have not studied them, that this is in fact the type of model they are proposing. Unfortunately, this is too typical of mainstream writing on quantum consciousness, where a wild swipe says more about the writers lack of knowledge of the topic than the shortcomings of the theories.

References:-

1.) Kolers, P. & Brewster, J. (1985)  -  Rhythms and responses  -  Journal of Experimental Psychology, 11, pp. 150-67

2.) LeDoux, J. (1996)  -  The Emotional Brain (chapter 6)  -  Simon & Schuster

3.) Jarrell, T. et al (1987)  -  Brain Research, 412, pp.285-94 P 4.) Bordi, F. & LeDoux, J. (1994)  -  Experimental Brain Research, 98, pp.261-74




Free Will is Un-Natural

John Bargh

In: Are We Free? Psychology and Free Will

Bargh admits to the existence of preferences, motivations, desires and goals as things that influence people. He asks whether actions are the result of free choices influenced by preferences etc., or whether our actions are determined by the preferences. without any coordinating element of free choice.

At the start of his chapter, Bargh seems to be creating more problems than he resolves. Preferences, motivations, desires and goals are part of conscious subjective experience. If they influence actions, even without central coordination, consciousness and therefore some form of free will seems to be pulled into the fray. Of course, it could be argued that the subjective experience of the preferences is epiphenomenal, or an illusion, but this leaves open, the further question of why evolution would allow energy to be tied up in producing something useless.

Bargh discusses the fact that while we view our own actions in the light of our thoughts prior to action, we view the actions of third parties and elements in the environment retrospectively. He seems to be trying to argue that because the viewing of third parties action is retrospective, the retrospective account must be more scientific, because science operates on a third party basis. However, science has no choice in most cases, and the first person experience is a brute fact, which it is part of the scientific mission to describe. An experiment by Pronin and Kugler is supposed to show that individuals attribute free will only to themselves. It may be that when asked people ascribe rational motives to third parties, but the whole experience of life says that people do in fact think that others have choice, and indeed blame them for making bad choices. Regarding third parties as not having free choice, while one has it oneself would seem to verge on autism, where others can be regarded as ‘wind-up toys’.

Bargh’s view of the past or what he thinks our view of the past is, appears strange. It is claimed that once things have receded into the past, they are fixed and determined, as if nothing else could have happened. While it is true that experts, such as historians and economists, called onto explain why an event happened, can gives things a rather determinist spin, it is, nevertheless, ridiculous to suggest that people always think that past actions are determined, and that they couldn’t of caught the train, got the job etc., if their past actions had been slightly different. Bargh argues from the existence of innate conservatism in preferring things as they are, but this is different from seeing them as absolutely inevitable.

Bargh also has a tendency to try and stand things on their head. Studies have shown that people feel better when they have a degree of control over their affairs rather than feeling helpless. The reasonable explanation of this is that the brain evolved to contain something that needed to be in control. Bargh, without offering any particular explanation as to why, deems the better feeling of being in control to be a ‘positive illusion’, but again why does nature expend energy on an illusion. It would seem much more economical for humans to have evolved to not be bothered about not being in control.

Barghs tends to avoid the issue of consciousness in his discussion of freewill. He has a long section on how preferences are rooted in the unconscious. What he does not mention is that preferences are consciously experienced, with the implication that actions driven by preferences are also driven by the conscious will. Of course, Bargh would probably argue that the conscious experience of the preferences is epiphenomenal, but that only brings us back to the question of why evolution selected to consume energy in conscious experience.

For his part, by ignoring considerations such as this, Bargh has been able to resurrect the ghost of behaviourism. He admits that Skinner was wrong in not allowing for internal cognitive mechanisms in the brain, but concludes that these mechanisms are after all driven only by the environment, so behaviourism is right in principle. What one should note here, is that Bargh and many others like him are in fact unconscious Cartesians, as is indicated by his reference to there being no need for a ‘ghost in the machine’. The assumption here is that whatever consciousness and conscious will is, it must be some sort of non-physical ghost thing, incapable of influencing the physical world. This is despite modern experiments that imply that conscious processing is energy consuming (1.Baumeister, Heatherton & Tice, 1994  2. Baumeister et al, 1998, 3. Vohs et al, 2006  4. Schmeichel, Vohs & Baumeister, 2003  5. Amir et al, 2005).

References:-

1.) Baumeister, Heatherton & Tice (1994)  -  How and why people fail at self-regulation  -  Academic Press

2.) Baumeister et al (1998)  -  Is the active self a limited resource?  -  Journal of Personality and Social Psychology, 74, pp. 1252-65

3.) Vohs et al (2006)  -  Decision fatigue exhausts self regulatory resources

4.) Schmeichel, Vohs & Baumeister (2003)  -  Role of the self in logical reasoning  -  Journal of Personality and Social Psychology, 85, pp. 33-46

5.) Amir et al (2005)  -  The fatigued decision maker




Whole Brain

New Scientist: 28 March 2009: Anil Ananthaswamy: based on Raphael Gaillard of INSERM

Raphael Gaillard of INSERM took the opportunity provided by the need to insert intercranial electrodes during medical treatments to test aspects of consciousness. The sample of electrodes across 10 volunteers covered most parts of the brain. Words were flashed in front of the volunteers, some of which they were conscious of, and some of which were masked so that there would only be unconscious processing. During the first 30 milliseconds there was not much difference between conscious and unconscious processing. After that time, there were several types of brain processing that only occurred where the subjects were conscious of the words concerned. The frequency and phase of neurons in different parts of the brain synchronised, and then in turn set of synchronised signals in other parts of the brain. For instance activity in the occipital lobes seemed to set off activity in the frontal lobes. The fact that this only occurred when subjects were aware of the words being shown, meant that this synchronisation was viewed by the researchers as a correlate of consciousness. The synchronisation of activity was spread over large parts of the brain leading the researchers to hypothesise that consciousness is spread over a large part of the brain rather than being concentrated in any one ‘seat of consciousness’.

This clear distinction between conscious and non-conscious activity appears to contradict a core theme of Dennett, to the effect that there is no such distinction between conscious and non-conscious activity. It would also seem to argue against the once popular ‘electric plug’ theory of consciousness. This argued that consciousness was concentrated in and around the brain stem, because if anything seriously damaged the brain stem consciousness ceased. This research would rather seem to suggest that the brain stem is necessary but not sufficient for human consciousness.

The findings appear compatible with the idea that the widespread gamma synchrony is a correlate of consciousness. This view was made popular by, although not discovered by Crick and Koch in the 1990s, but fell from favour when it was discovered that the synchrony was with dendritic rather than axonal activity.




Reconstrual of “Free Will” from the Agentic Perspective of Social Cognitive Theory

Albert Bandura P. In: Are We Free? Psychology and Free Will

Agency involves not only the ability to deliberate, make choices and construct action plans, but also the capacity to carry out the action plans. Agents also reflect on their actions, and make adjustments to their future plans and actions. Humans are not just machines that use a negative feedback to guide themselves back to a state desired by their designers. Instead of concentrating on discrepancy reduction in this way, they aim at discrepancy production, desired states that involve the expenditure of energy or the creation of thermal disequilibrium.

A paper by (1. Nisbett & Wilson, 1977) which tries to show that people’s actions are governed by unconscious cognitive processes is criticised by Bandura for its methodology. In Nisbett and Wilson’s study, subjects were either asked to explain why they had performed certain actions, or where asked to judge how they were influenced by certain factors. Bandura asserts that to test whether cognition effects actions, it is necessary to study thoughts before the action, not after it. Afterwards, subjects are merely speculating, and it is claimed that some of the questioning was biased, diverting attention from relevant factors and towards irrelevant factors (2. Adair & Spinner,  3. Loftus, 2005).

Bandura also criticises the attempt to disprove freewill on the basis of the Libet experiments. He argues that there is no comparison between long-term planning, for example the plans for a summer holiday, and flicking a wrist in a highly constrained experiment, where the only freedom is a limited choice in timing, the action and the approximate time-slot having already been decided in advance.

Bandura further attacks Wegner. In Wegner’s view, environmental inputs alone activate neural mechanisms that produce actions. However, they also activate a specialised interpretative module that has no connection to the action production system. Bandura thinks that this idea is improbable, given the dense connections within most of the brain. Wegner’s ‘interpretative module’ goes on to create the illusion that free will caused the action. Why should evolution leave energy tied up in such a module? Surprisingly, the view that one’s free will caused an action, can in the event of say a bad action, cause feelings of guilt that influence future actions. The whole argument appears contradictory since at the beginning it was stated that only environmental factors influenced action, whereas now feelings of guilt etc are supposed to influence actions as well. Bandura seems to be suggesting that Wegner is trying to have his cake and eat it, with a deterministic theory of the mind, but sellotaped onto it a mechanism which prevents people from saying they do not have to bother about their actions because these are pre-determined.

References:-

1.) Nisbett, R. & Wilson, T. (1977)  -  Verbal reports on mental processes  -  Psychological Review, 84, pp. 231-59

2.) Adair, J. & Spinner, B. (1981)  -  Journal for the Theory of Social Behaviour, 11, pp. 31-52

3.) Loftus, E. (2005)  -  Investigation of the malleability of memory  -  Learning and Memory, 12, pp. 361-6




Are We Free?  Psychology and Freewill
 
Eds. Baer, J., Kaufman, J. & Baumeister, R.

Oxford UNiversity Press  ISBN 978-0-19-518963-6

This book provides an excellent juxtaposition of the mainstream view of a deterministic brain function meaning that freewill is an illusion, as expounded here by leading figures in the field such as Dennett, Wegner, Bargh and Pinker, and various dissident views. The mainstream pieces have all the familiar arguments, but it is useful to hear the other voices, which are seldom heard in serious academic writing.

Roy Baumeister argues that determinists do not just have to prove that some actions are determined, but that all actions are determined. He also claims evidence that both the suppression of initial impulses and logical choices between options are energy-consuming processes, and therefore able to have an influence on the rest of the world. Shaun Nichols puts forward evidence that non-deterministic assumptions are hard-wired into the brain. Albert Bandura criticises the methodology/limited scope of studies by Nisbett & Wilson, Libet and Wegner that are central to the determinist argument. Carol Dweck reports on studies showing the superior academic performance of students, who beleive they can improve their performance, compared to those who believe that their ability at the beginning of the course is a fixed constraint.

Overall, this book allows the reader a balanced view of an important argument that is central to the nature of human consciousness and behaviour, the outcome of which may have an important influence on the long-term development of society.



Self-Theories: The Construction of Free Will

Carol Dweck & Daniel Molden

In: Are We Free?  Psychology and Free Will   Eds. Baer, J., Kaufman, J. & Baumeister, R.

The authors divide peoples’ attitudes to their control over their affairs and ability to control their environment into two categories. People with an ‘entity theory’ have the view that personal attributes, such as personality and intelligence, are fixed and not subject to personal development. People with an ‘incremental theory’ think that their abilities can be developed through their own efforts (1. Dweck, 1999, 2. Dweck & Leggett, 1988).

Studies suggest that incremental theorist do better than entity theorists in their personal development (3. Dweck & Molden, 2005, 4. Molden & Dweck). Entity theorists tend to withdraw effort and avoid tasks once they have failed. Incremental theorists attempt an improved approach to the problem task. In a study (5. Blackwell et al, 2007) entity and incremental theorists who started a high school maths course with the same standards soon showed a situation where the incrementalists pulled ahead, with the gap continuing to widen over the duration of the course. This distinction was related to the incrementalists willingness to renew efforts after a setback. A further study (6. Robins and Pals, 2002) showed that during their college years, entity theorists had a steady decline in their feeling of self-worth, relative to incremental theorists. A further study (7. Baer, Grant & Dweck, 2005) linked some cases of depression to self-critical rumination on supposedly fixed traits by entity theorists. Further studies suggest that incremental theorists had greater resilience to obstacles, were more conscientious in their work, and more willing to attempt challenging tasks.

While both sets of behaviour could still be explained by deterministic algorithms, the studies are certainly consistent with the existence of free will and are supportive of the idea that it is adaptive.

References:-

1.) Dweck, C. (1999)  -  Self-Theories  -  Psychology Press

2.) Dweck, C. & Leggett, E. (1988)  -  A social-cognitive approach to motivation and personality  -  Psychological Review, 95, pp. 256-73

3.) Dweck, C. & Molden, D. (2005)  -  Self-Theories  -  In: Handbook of Competence and Motivation,  Eds. Elliot, A. & Dweck, C.  -  Guildford Press
 
4.) Molden, D. & Dweck, C. (2006)  -  Finding meaning in psychology  -  American Psychologist, 61, pp. 192-203

5.) Blackwell et al (2007)  -  Implicit theories of intelligence  -  Child Development, 78, pp. 246-63 P 6.) Robins, R. & Pals, J. (2002)  -  Implicit self-theories  -  Self and Identity, 1, pp. 313-36

7.) Baer, Grant & Dweck (2005)  -  Personal goals

6.) Deutch, D. - Proceedings of the Royal Society (London) A400 (1985) 97




The Hazards of Claiming to Have Solved the Hard Problem of Free Will

Shariff Azim, Jonathan Schooler, Kathleen Vohs

In: Are We Free? Psychology and Free Will  Eds.  Baer, J., Kaufman, J. & Baumeister, R.

This chapter criticises the methodology of studies by Bargh and others that claim to show behaviour as automatic or determined. This refers to the influence of unconscious priming on behaviour. The authors feel that the behavioural results of experiments by Bargh and others are to a significant extent the result of suggestion by the experimenters, and are in fact only a step away from hypnosis.

They also argue that there is a limitation to the efficacy of the illusion argument. Humans sometimes suffer visual illusions, but this does not mean that all vision is illusory. These experiments show rather artificial conditions in which subjective control is an illusion, but this does not mean that all subjective control is an illusion.

As an aside from the core argument about freewill, supporters of determinism have always been concerned that once knowledge of the deterministic nature of behaviour that they believe in leaked out from academia into the general population, behaviour in society would deteriorate. People would reason that there was no point in trying to behave morally or sensibly, if in fact, they had no control over their actions in any case. Determinists have presented various rather convoluted arguments to get out of this one. However, (1. Vohs & Schooler, 2008) showed that participants who had read a chapter written by Francis Crick suggesting that rational, thinking people had long abandoned the idea of freewill were more likely to cheat in a subsequent Maths exercise, where the possibility of cheating had been built in. A partly valid argument on the determinist side is that people respond to peer pressure and want to be seen to be acting in the interests of the group. However, group pressures are somewhat less than they were in small hunter gatherer groups, and further to that the actions of groups may also be anti-social. In many instances, the pressure thing looks to be more useful in enforcing conformity rather than morals. It seems difficult to get away from the fear that believe in determinism could be bad for society.

References:-

1.) Vohs, K. & Schooler, J.  -  The value of believing in free will




Organism and Machine

Michael Denton

In: Are We Spiritual Machines?  Ed. Jay Richards

Michael Denton’s chapter is critical of the prevailing brain as a machine paradigm. He claims that the underlying design of organic systems is not at all analogous to the design of machines. All the parts of an organism influence each other, in a way which is not true of machines.

Denton says that this principle is well illustrated by the structure of protein, the basic building block of life. The arrangement of the atoms in protein is unlike anything found in machines. In contrast to machines built up out of modular parts that can be replaced by like parts, proteins are characterised by the chaotic nature of their arrangement. This was the impression gained by the first researchers to detect the molecular structure of protein. A later paper says:-

‘Perhaps the most remarkable features of the molecule (protein) are its complexity and its lack of symmetry. The arrangement seems to be almost totally lacking in the kind of regularities which one instinctively anticipates, and it is more complicated than had been predicted by any theory of protein structure.’  _____ M. Perutz  -  European Journal of Biochemistry

The structure of protein began to be disclosed in the late 1950s. In the early stages, it was assumed that each amino acid made an individual contribution to the three-dimensional structure of the protein. This assumption was based on the concept of proteins as machines, molecular machines, that were expected to be built up of independent parts that all made a contribution to the whole, but was quite distinct from the contribution of other parts. This idea of a molecular machine is still advanced in text books, but Denton regards it as false.

Research progressively showed that in protein, the contribution of each amino acid was influenced by interactions with many of the other amino acids in the protein. It was discovered that the spatial conformation of each part of the amino acid chain of a protein was the product of a complex web of van der Waal force between electrical dipoles and electro-chemical interactions. These involved almost every section of the amino acid chain. Almost every one of thousands of atoms in the protein macromolecule contributes to the shape of the molecule via interactions with most of the other atoms. The impression is sometimes given that protein components such as the alpha helix can be treated as separate modules, much like components of a machine. In fact, the stability and form of these elements is dependent on van der Waal and microchemical interactions, in turn dependent on larger scale interactions within the protein. The properties of each component within the protein are not fixed, but are dependent on the local conditions within the protein. While a module in a machine, such as a wheel on a car, is still a wheel when it is removed from the car, the same is not true of the component of a protein. The components of proteins are only components when they are interacting with other components. The form and function of each part is determined by the whole and vice versa, in a manner that is alien to human technology.

What is true of proteins is true of other important macromolecules. RNA molecules, like proteins, fold into three-dimensional forms in which all parts are shaped by reciprocal interactions. The constituent parts of these only hold their shape when they are part of the whole molecule. Removed from it they take on another shape, or disassemble into a random chain. P The proteins form into multiprotein complexes, such as the ribosomes that manufacture the proteins, and the cytoskeleton that comprises microtubules, microfilaments and intermediate fibres. The same principle applies as with the component proteins, that the parts have a reciprocal formative influence on one another, and change and no longer exist in their previous form if removed from the whole. The same principle applies to the cell as a whole, the parts only existing as part of the whole, and disintegrating if they are outside the cell for any length of time. This view of proteins, RNA, cell components and the cells themselves suggests that attempts to understand organism in terms of fixed organic components or parts of something like a machine are likely to fail.

At a more general level, this view of organic matter emphasises the superficiality of mainstream consciousness studies in regarding the neuron as a simple switch, and refusing to look at the possible functions of microtubules, other proteins and the quantum forces that bind them.




Determined and Free

David Myers

In: Are We Free?  Psychology and Free Will   Eds. Baer, J., Kaufman, J. & Baumeister, R.

The chapter examines the impact of self-theories on the issue of free will. Of interest is comment on studies that show that humans benefit psychologically when they have greater autonomy and self-determination, relative to more constrained individuals. Instances are prisoners given control over petty matters such as how chairs are placed exhibit less stress, health problems and vandalism. Workers given some autonomy in carrying out tasks have improved morale. Residents of institutions given choice in routine matters appear happier and live longer. Residents in homeless shelters are more likely to adopt a passive/helpless attitude. People who feel they are free and self-determined tend to have more beneficial behaviours such as smoking less, earning more, practising birth control, resisting conformity and delaying gratification. P It could be argued that these actions that are autonomous of petty regulation by third parties may still be the result of a deterministic process in the individual’s brain. However, if it was merely a choice of a deterministic algorithm in the individual’s head and another algorithm in the head of a minor bureaucrat or warden of some kind, it is not apparent why the latter should be stressful to the individual.

References:-

Ryan, R. & Deci, E. (2006)  -  Self-regulation and the problem of human autonomy  -  Journal of Personality, 74, pp. 1557-85




Free Will, Consciousness and Cultured Animals

Roy Baumeister

In: Are We Free? Psychology and Free Will  Eds. Baer, J. Kaufman, J. & Baumeister, R.

Baumeister emphasises that for freewill to exist, there is no need to characterise all human actions as free. Much human activity looks to be deterministic, but free will still exists, if only a small proportion of human activity is caused or influenced by free choice. Freewill is seen as involving an inner process of choosing, rather than merely being an in principle possibility of doing something else.

It is also argued that the concept of freewill does not require us to think of freewill as initiating processes. Brain activity and human behaviour are going on all the time in any case. The question is whether freewill, not always, but just sometimes, alters behaviour. Freewill can be viewed as possibly overriding some other response as in Libet’s ‘free won’t’, which allows the will to inhibit an action that has begun unconsciously, or it can be viewed as choosing amongst a series of options, presumably produced by unconscious brain processing. If such freewill exists, it is argued to be tied to conscious deliberation and decision. Baumeister argues that the complex nature of human life involves the flexibility of a Libet type ‘free won’t’ capable of overriding initial impulses. This type of initial self-control can be extended to involve rational types of choice and deliberation, including the review of likely consequence and scenarios of the outcome of different choices of action.

It seems that many investigators oppose the idea of freewill, because they think that it would mean that some non-physical entity had an influence on the physical world. This pre-supposes that consciousness is non-physical, which is itself a contradiction for the majority of such investigators who believe that there is no such thing as the non-physical.

In contrast, Baumeister proposes that self-control of ‘free won’t’, at any rate, is an energy consuming process (i.e. not a spook). Thus he argues that self-control becomes more difficult to use in one area, if it is already being exerted in another. Thus, notoriously, people trying to give up smoking have difficulty in controlling their temper. Logical reasoning has also been showed to be impaired, by having to exercise self-control at the same time (1. Baumeister et al, 1998  2. Vohs et al, 2006). This suggests that there is an energy constraint on self-control. Baumeister reminds us that contrary to the spook notions of some commentators, brain processes are very energy intensive, consuming a fifth of the body’s energy. His view is that evolution has developed a system for channelling energy into overriding initial behaviours. Experiments have suggested that while the unconscious can do several things in parallel, conscious processes that appear to be required for rational deliberation can only do one thing at a time (3. DeWall, Baumeister and Masicampo, 2006  4. Lieberman et al, 2006). Thus the later stages of evolution produced a new system for making behaviour more adaptive.

References:-

1.) Baumeister et al (1998)  -  Is the active self a limited resource?  -  Journal of Personality and Social Psychology, 74, pp. 1252-65

2.) Vohs et al (2006)  -  Decision fatigue exhausts self-regulatory resources

3.) DeWall, Baumeister & Masicampo (2006)  -  Evidence that logical reasoning depends on conscious processing

4.) Lieberman et al (2002)  -  Reflection and reflexion  -  Advances in Experimental Social Psychology, 34, pp. 199-249

5.) Donald, M. (2002)  -  A Mind so Rare: The Evolution of Human Consciousness  - Norton