. Every textbook on brain behaviour relationships has one or another version of the famous motor...

90.2K

Verified Solution

Question

Medical Sciences

. Every textbook on brain behaviour relationships has one oranother version of the famous motor â€˜homunculusâ€™ â€“ the distortedbody part graphic drawn juxtaposed to the primary motor cortex. Themotor homunculus is based on Penfieldâ€™s groundbreaking work showingthat the amount of cortical area affecting movement of a given bodypart was not related to the body partâ€™s size but to its motorcontrol capability (thus the grotesquely enlarged appearance of thehomunculusâ€™ lips and hands). Penfield used short-durationelectrical pulses in the posterior region of the frontal lobe thatelicited, simple, nearly reflexive, twitch-like movements. Had hiselectrical stimulation been of much longer-duration, what type ofmovements would he have likely elicited from there?

Answer & Explanation Solved by verified expert

4.3 Ratings (765 Votes)

The motor cortex comprises three different areas of the frontal lobe primary motor cortex the premotor cortex and the supplementary motor area Of the three motor cortex areas stimulation of the See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member