Psychology 2220A/B Chapter Notes - Chapter 7: Secondary Somatosensory Cortex, Posterior Parietal Cortex, Cochlear Nucleus

• School: Western University
• Department: Psychology
• Course: Psychology 2220A/B
• Professor: Derek Quinlan

Document Summary

Two models of sensory system organization: the former model was hierarchical, functionally homogeneous, and serial, the current model is hierarchical, functionally segregated, and parallel. Organization of primate cortex: functional columns (cells of a column respond to the same frequency, tonotopic organization on the basis of frequency, secondary areas do not respond well to pure tones and have not been well-researched. Somatosensory cortex: effects of damage to the primary somatosensory cortex are often mild numerous parallel pathways. Neuropathic pain: severe chronic pain in the absence of a recognizable pain stimulus, likely from pathology of nervous system linked to an injury, some evidence for aberrant glial cell signals triggering neural pain pathways. Biopsychology chapter 7- mechanisms of perception: evidence of human pheromones, changes in olfactory sensitivity across and menstrual cycle; Synchronization of menstrual cycles: sex identi cation by smell (especially by women, men can identify menstrual stage by smell.