PSYC 2410 Chapter 8: Chapter 8 Summary.docx

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2410
• Professor: Elena Choleris

Document Summary

Sensorimotor system: parallel, functionally segregated, hierarchically organized, down-wards as opposed to upwards (association cortex muscles) Always have sensory feedback at every stage (except ballistic movements all or none, once initiated cannot stop), many changes controlled unconsciously (does not reach cortex) Input from visual, auditory and somatosensory pathways and dorsolateral association cortex. Output to dorsolateral association cortex, secondary motor cortexes and frontal eye field (involved in directly controlling eye movements) Role in initiating movements (anticipatory firing) and deciding how to interact planning neurons . Apraxia (inability to consciously interact with objects use this hammer and nail vs. hang the painting) Output to secondary and primary motor cortexes, posterior parietal association cortex, frontal eye field. Involved in evaluation of stimuli and initiation of movements (anticipatory firing) Neurons are highly specialized and either fire to characteristics, orientation/location or both. Output to primary motor cortex and brain stem (bypassing primary cortex, why damage to primary motor cortex can be recovered due to direct projections)