Psychology 2220A/B Chapter 7: chapter 7 for final

• School: Western University
• Department: Psychology
• Course: Psychology 2220A/B
• Professor: Dr.Yves Bureau

Document Summary

Chapter 7 mecha(cid:374)is(cid:373)s of perceptio(cid:374): heari(cid:374)g, touch, s(cid:373)ell, taste, a(cid:374)d atte(cid:374)tio(cid:374) Outline: principles of sensory system organization, auditory system, somatosensory system: touch and pain, chemical senses: smell and taste, selective attention. The auditory system: natural sounds are complex patterns of vibrations, a fourier analysis breaks natural sounds down into sine waves (end up being specific sound waves, there is a complex relationship between natural sounds and perceived frequency. Organization of primate cortex: functional columns: cells of a column respond to the same frequency, tonotopic organization, secondary areas do not respond well to pure tones and have not been well researched. Auditory-visual interactions: there is evidence for interactions between the auditory and visual systems, e. g. some posterior parietal neurons with both visual and auditory receptive fields. Interaction in primary sensory cortices indicate that sensory system interaction is an early and integral part of sensory processing.