PSYC 311 Lecture Notes - Lecture 12: Acalculia, Spatial Analysis, Supramarginal Gyrus
8 Jun 2018
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May 24th, Wednesday, 2017
1
Lecture 12: Week 4 Class 2
What is covered today:
- Prosopagnosia
- Apperceptive Visual Agnosia
- Associative
- Central Achromatopsia
- Color Anomia
Readings:
- Milner, Corkin Teuber
- Milner, Psychlogical Sequire and Zola Moigan
- Petrides: Frontal L + memory+ working memory
Last class: May 29th Review: May 30th
Review:
- Map by Brodmann: 1st complete map of cerebral cortex
- Sarkisoff
- Long superior temporal sulcus: divides brain into superior temporal gyrus and
inferaltemporal cortex (Include inferior temporal gyrus and fusiform gyrus)
- In human, inferior temporal gyrus is very low in lateral surface; in medial surface, we see
fusiform gyrus, then we have the hippocampal gyrus.
o There are 5 gyri in human brain
- Visual areas: Base of the brain
- Different types of agnosia: (lesion is bilateral in monkey)
o Nowadays we accept various kind of visual problem we call agnosia.
o Monkey research enable us to understand the mechanism
1. Associative visual agnosia:
o Can see very well, can copy very ell, ut ould’t recognize them.
o He has perfet isio, ut a’t iterpret hat he sa
o Damage to front part of ventral stream
2. Apperceptive visual agnosia: difficulty with perception
o Not lid, they do’t hae daage to eyes or opti eres
o The damage is further back of the temporal lobe. Enough occipital and
temporal, but the later processing stages have been destroyed
- Compare associative visual agnosia and apperceptive visual agnosia:
o patient with assoiatie isual agosia a’t reogize/ iterpret subject, they
a tell to ojets are the sae or differet, ut do’t ko hat they are;
they a’t ae it eause the teporal loe, hih oets to other parts of
the brain, is damaged.
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Petrides: frontal l + memory+ working memory. Map by brodmann: 1st complete map of cerebral cortex. Long superior temporal sulcus: divides brain into superior temporal gyrus and inferaltemporal cortex (include inferior temporal gyrus and fusiform gyrus) In human, inferior temporal gyrus is very low in lateral surface; in medial surface, we see fusiform gyrus, then we have the hippocampal gyrus: there are 5 gyri in human brain. Enough occipital and temporal, but the later processing stages have been destroyed. 2: patient with apper(cid:272)epti(cid:448)e (cid:448)isual ag(cid:374)osia (cid:272)a(cid:374)"t see the shape very well, they are (cid:271)lurry, therefore, they (cid:272)a(cid:374)"t tell the differe(cid:374)(cid:272)es (cid:271)et(cid:449)ee(cid:374) the t(cid:449)o o(cid:271)je(cid:272)ts (cid:271)e(cid:272)ause they (cid:272)a(cid:374)"t see (cid:448)ery (cid:449)ell. Faces are in a spetial category, not because they are faces, because visual facial demand is high. There is only slight difference between faces, therefore we can tell this is (cid:373)y (cid:373)other"s fa(cid:272)e or (cid:373)y father"s fa(cid:272)e. Investigator kanwisher did fmri, when student looking at fmri, fusiform gyrus is active.
