PSYC 311 Chapter Notes - Chapter 25: Frontal Lobe, Temporal Lobe, Striatum

• School: McGill University
• Department: Psychology
• Course: PSYC 311
• Professor: Michalakis Petrides

Document Summary

Behavioural effects of frontal lobe lesions in man. The frontal cortex has major reciprocal connections with the posterior parietal, prestriate, and temporal cortices. Thus it receives input from these areas and can also talk back to them. Furthermore, its projections to the amygdala and hypothalamus allow for the regulation of emotional response, while its projections to the neostriatum and precentrral cortex provide direct routes to the motor system. Frontal lobe lesions can impair the temporal ordering of recent events. Recency-discrimination task: subjects are shown a long series of cards which each had 2 images on them. On some cards, a question mark is placed between the two images. When patients complete tasks where they are required to keep track of their own previous responses while actively planning the ones to come, left frontal lobe lesions seem to be predominant in causing impairments. Thus, there is a special contribution of the left frontal lobe to the organization and planning of responses.