PSY290H5 Chapter Notes - Chapter 7: Posterior Parietal Cortex, Auditory Cortex, Postcentral Gyrus
Document Summary
Chapter #7: mechanisms of perception: hearing, touch, smell, taste and. As one moves higher up through a sensory system, one finds neurons that respond optimally to stimuli of greater specificity and complexity. The higher the level of damage to the various levels, the more specific and complex the deficit. It is now clear that the three levels of the cerebral cortex (primary-secondary. Association) in each sensory system contains functionally distinct areas that specialize in different kinds of analysis. Parallel processing: the simultaneous analysis of a signal in different ways by the multiple parallel pathways of a neural network. There appear to be two fundamentally different kinds of parallel steams of analysis in our sensory systems: without our conscious awareness, with our conscious awareness. Pure tones (sine wave vibrations) exist only in laboratories and sound recording studios, in real life sound is always associated with complex patterns of vibrations.
