Rick Grush Perception, Imagery, and the Sensorimotor Loop (Draft) 1 Perception, Imagery, and the Sensorimotor Loop. To appear in A consciousness reader, Esken and Heckmann (eds) Schoeningh Verlag

I have argued elsewhere that imagery and represention are best explained as the result of operations of neurally implemented emulators of an agent's body and environment.1 In this article I extend the theory of emulation to address perceptual processing as well. The key notion will be that of an emulator of an agent's egocentric behavioral space. This emulator, when run off-line, produces mental imagery, including transformations such as visual image rotations. However, while on-line, it is used to process information from sensory systems, resulting in perception (in this regard, the theory is similar to that proposed by Kosslyn (1994)). This emulator is what provides the theory in theory-laden perception. I close by arguing briefly that the spatial character of perception is to be explained as the contribution of the egocentric behavioral space emulator.

[1]  P. Churchland.  Scientific realism and the plasticity of mind , 1980 .

[2]  Rick Grush,et al.  The architecture of representation , 1997 .

[3]  T. Sejnowski,et al.  A critique of pure vision , 1993 .

[4]  R. Held,et al.  MOVEMENT-PRODUCED STIMULATION IN THE DEVELOPMENT OF VISUALLY GUIDED BEHAVIOR. , 1963, Journal of comparative and physiological psychology.

[5]  John L. Campbell.  Molyneux's Question , 1996 .

[6]  D. Landers,et al.  The effects of mental practice on motor skill learning and performance: A meta-analysis. , 1983 .

[7]  Michael I. Jordan,et al.  An internal model for sensorimotor integration. , 1995, Science.

[8]  D. Ingvar,et al.  Distribution of cerebral blood flow in the dominant hemisphere during motor ideation and motor performance , 1977, Annals of neurology.

[9]  P. Churchland.  A neurocomputational perspective , 1989 .

[10]  R. Llinás,et al.  Of dreaming and wakefulness , 1991, Neuroscience.

[11]  P. Roland,et al.  Supplementary motor area and other cortical areas in organization of voluntary movements in man. , 1980, Journal of neurophysiology.

[12]  K. J. Cole,et al.  Strength increases from the motor program: comparison of training with maximal voluntary and imagined muscle contractions. , 1992, Journal of neurophysiology.

[13]  Stephen M. Kosslyn,et al.  Roles of imagery in perception: Or, there is no such thing as immaculate perception , 1995 .

[14]  S. Kosslyn,et al.  Visual Mental Imagery Activates Topographically Organized Visual Cortex: PET Investigations , 1993, Journal of Cognitive Neuroscience.

[15]  K. Atkins,et al.  Of Sensory Systems and the "Aboutness" of Mental States , 1996 .

[16]  M. Jeannerod.  The representing brain: Neural correlates of motor intention and imagery , 1994, Behavioral and Brain Sciences.

[17]  K. Bach.  Varieties of Reference , 1994 .

[18]  R. E. Kalman,et al.  New Results in Linear Filtering and Prediction Theory , 1961 .

[19]  J J Denier van der Gon,et al.  Mechanisms underlying accuracy in fast goal-directed arm movements in man. , 1990, Journal of motor behavior.

[20]  J. Decety,et al.  Comparative analysis of actual and mental movement times in two graphic tasks , 1989, Brain and Cognition.

[21]  Brian Cantwell Smith,et al.  On the origin of objects , 1997, Trends in Cognitive Sciences.

[22]  Joel L. Davis,et al.  Large-Scale Neuronal Theories of the Brain , 1994 .

[23]  M J Farah,et al.  Visual angle of the mind's eye before and after unilateral occipital lobectomy. , 1992, Journal of experimental psychology. Human perception and performance.