Abstract
Psychoneural reduction is under attack again, only this time from a former ally: cognitive neuroscience. It has become popular to think of the brain as a complex system whose theoretically important properties emerge from dynamic, non-linear interactions between its component parts. ``Emergence'' is supposed to replace reduction: the latter is thought to be incapable of explaining the brain qua complex system. Rather than engage this issue at the level of theories of reduction versus theories of emergence, I here emphasize a role that reductionism plays – and will continue to play – even if neuroscience adopts this ``complex systems'' view. In detailed investigations into the function of complex neural circuits, certain questions can only be addressed by moving down levels and scales. This role for reduction also finds a place for approaches that dominate mainstream neuroscience, like the widespread use of experimental techniques and theories from molecular biology and biochemistry. These are difficult to reconcile with the anti-reductionist sentiments of the ``complex systems'' branch of cognitive neuroscience.
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References
Adams, N.C., Lozsati, D.A. and Guillery, R.W. (1997), 'Complexities in the thalamocortical and corticothalamic pathways', European Journal of Neuroscience 9/2, pp. 204–209.
Bickle, J., Bersntein, M., Heatley, M., Worley, C. and Stiehl, S. (1999), 'A functional hypothesis for LGN-V1-TRN connectivities suggested by computer simulation', Journal of Computational Neuroscience 6, pp. 251–261.
Bickle, J., Lee, D. and Bernstein, M. (2000), 'Experiments with a multi-compartment model of a thalamic relay neuron reveals the relative effects of cortical excitatory feedback and intrathalamic inhibitory synapses on membrane potential', Society for Neuroscience Abstracts 26, pp. 1471.
Bower, J.M. and Beeman, D. (eds.) (1995), The Book of GENESIS, New York: Springer-Verlag.
Crick, F. and Koch, C. (1990), 'Towards a neurobiological theory of consciousness', Seminars in the Neurosciences 2, pp. 263–275.
Crook, S. and A. Cohen (1995). 'Central pattern generators', in J.M. Bower and D. Beeman, pp. 141–158.
De Shutter, E. and Bower, J.M. (1994a), 'An active membrane model of the cerebellar Purkinje cell I. Simulation of current clamps in slice', Journal of Neurophysiology 71, pp. 375–400.
De Shutter, E. and Bower, J.M. (1994b), 'An active membrane model of the cerebellar Purkinje cell II. Simulation of the synaptic responses', Journal of Neurophysiology 71, pp. 401–419.
Feig, S. and Harting, J.K. (1994), 'Ultrastructural studies of the primate lateral geniculate nucleus: Morphology and spatial relationships of axon terminals arising from the retina, visual cortex (area 17), superior colliculus, parabigeminal nucleus, and pretectum of Galago crassicaudatus', Journal of Comparative Neurology 343, pp. 17–34.
Grossberg, S. (1978), 'A theory of visual coding, memory, and development', in E.J. Leeuwenberg and H.F.J.M. Buffart, eds., Formal Theories of Visual Perception, New York: Wiley.
Harting, J.K., van Lieshout D.P. and Feig, S. (1991), 'Connectional studies of the primate lateral geniculate nucleus: Distribution of axons arising from the thalamic reticular nucleus of Galago crassicaudatus', Journal of Comparative Neurology 310, pp. 411–427.
Jones, E.G. (1985), The Thalamus, New York: Plenum Press.
Kandel, E.R., Schwartz J.H. and Jessell, T.M. (eds.) (1991), Principles of Neural Science, 3rd Ed, New York: McGraw-Hill.
Kandel, E.R., Schwartz, J.H. and Jessell, T.M. (eds) (2000). Principles of Neural Science, 4th Ed, New York: McGraw-Hill.
Koch, C. and Segev, I. (eds.) (1998), Methods in Neuronal Modeling: From Ions to Networks, 2nd Ed., Cambridge, MA: MIT Press.
Kolb, B. and Whishaw, I.Q. (1996), Fundamentals of Human Neuropsychology, New York: Freeman.
McClelland, J.L. and Rumelhart, D.A. (1987), Explorations in Parallel Distributed Processing: A Handbook of Models, Programs, and Exercises, Cambridge, MA: MIT Press.
Montero, V.M. (1991), 'A quantitative study of synaptic contacts on interneurons and relay cells of the cat lateral geniculate nucleus', Experimental Brain Research 86, pp. 257–270.
Protopapas, A. and Bower, J.M. (1995), 'Dynamics of cerebral cortical networks', in J.M. Bower and D. Beeman, eds., pp. 159–179.
Rail, W. and Agmon-Snir, H. (1998), 'Cable theory for dendritic neurons', in C. Koch and I. Segev, eds., pp. 27–92.
Segev, I. (1995a), 'Cable and compartmental models of dendritic trees', in J.M. Bower and D. Beeman, eds., pp. 53–81.
Segev, I. (1995b), 'Temporal interactions between post-synaptic potentials', in J.M. Bower and D. Beeman, eds., pp. 83–101.
Segev, I. and Burke, R.E. (1998), 'Compartmental models of complex neurons', in C. Koch and I. Segev, eds., pp. 93–136.
Sherman, S.M. and Guillery, R.W. (1996), 'The functional organization of thalamocortical relays', Journal of Neurophysiology 76, pp. 1367–1395.
Sherman, S.M. and Koch, C. (1998), 'Thalamus', in G. Shepherd, ed., The Synaptic Organization of the Brain, 4th Ed, New York: Oxford University Press, pp. 289–328.
Steriade, M., McCormick, D.A. and Sejnowski, T.J. (1993), 'Thalamocortical oscillations in the sleeping and aroused brain', Science 262, pp. 679–685.
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Bickle, J. Understanding Neural Complexity: A Role For Reduction. Minds and Machines 11, 467–481 (2001). https://doi.org/10.1023/A:1011899730672
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DOI: https://doi.org/10.1023/A:1011899730672