Lecture 3 - Nervous System

Weak s4muli will produce a severe contrac4on of gill

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: memory –  Days, months, years… •  The H.M. case – hippocampus (and medial temporal lobe) removed to cure severe epilepsy 45 HM Pa4ent •  HM suffered epilepsy caused by scar 4ssue in the brain due to a bicycle accident when he was 7 •  Epilepsy was controlled un4l he was 23 •  William Beecher Scoville (neurosurgeon) removed part of the scarred 4ssue located in the temporal lobes •  Aser surgery, his epilepsy was cured but he suffered from severe cause of amnesia 46 HM Pa4ent •  Brenda Milner studied his case of amnesia •  He remembered everything that happened prior the opera4on Long ­term memory then is stored in a different place of the brain •  He was able to remember the names and people as long as it was repeated to him Short ­term memory is stored somewhere else •  What he lacked was the conversion from short ­term memory into long ­term memory –  Don’t remember ea4ng, mee4ng new people, name, places, or anything aser the surgery 47 HM Pa4ent •  H.M. could not turn new short ­term memory and convert it into long ­term memory –  But was that true for all kinds of memory? •  He could learn motor tasks (mirror drawing stars) 48 HM Pa4ent •  Can unconsciously learn motor skills: Cannot remember a person who he just met, but can learn how to play piano •  He will not remember learning these skills but had the capacity to learn them 49 Types of long ­term memory •  Explicit (conscious recall, declara4ve memory) –  Facts and events (people, places and objects) –  Medial temporal lobe and hippocampus •  Implicit (unconscious recall) –  Once mastered, they become unconscious –  Motor and perceptual skills (riding a bicycle) –  Amygdala, Cerebellum and reflex pathways •  A lot of the explicit memory moves to implicit memory on...
View Full Document

This document was uploaded on 03/05/2014.

Ask a homework question - tutors are online