1. lateralization of function function or behavior found in only one cerebral hemisphere why might there be lateralization? what are its advantages and disadvantages?

2. lateralized behaviors left hemisphere –analytical abilities –quantitative skills –language right hemisphere –music –spatial abilities –artistic abilities –emotions –facial recognition

3. Language most well studied lateralized behavior –95% of right handed have speech on left –70% of left handed have speech on left aphasia – language deficit that cannot be attributed to motor, motivational, sensory or other explanations

4. Broca’s Aphasia characterized by broken halted speech, absence of prosody comprehension – fairly good; ability to read – fairly good

5. Wernicke’s aphasia fluid aphasia, deficits appear to be in comprehension; words are nonsensical comprehension – poor reading ability - poor

7. Wada test injection of sodium amytal or sodium amobarbital – anesthetic used to determine hemisphere important for speech

8. Another way to study lateralized behaviors is via “split brain” patients split brain surgery

9. consequences of “split brain” initially – –“Breakdown of the Bicameral Mind” Julian Jaynes –subsequently – only can really tell by experimental manipulations in the lab

12. Emotions emotional facial expressions – evolutionary explanation

13. Emotions emotional facial expressions – evolutionary explanation role of right hemisphere –recognition of emotion –display of emotions –chimera brain damaged humans

14. brain regions involved in emotion limbic system- –components of limbic system- includes hypothalamus, hippocampus, amygdala, olfactory bulbs, septum sits within the temporal lobe –temporal lobe epilepsy

15. Kluver Bucy Syndrome Kluver Bucy syndrome –associated with temporal lobe damage characteristics:

16. Kluver Bucy Syndrome Kluver Bucy syndrome –associated with temporal lobe damage characteristics: 1. extraordinary tameness

17. Kluver Bucy Syndrome Kluver Bucy syndrome –associated with temporal lobe damage characteristics: 1. extraordinary tameness 2. lack of fear

18. Kluver Bucy Syndrome Kluver Bucy syndrome –associated with temporal lobe damage characteristics: 1. extraordinary tameness 2. lack of fear 3. put anything in the mouth

19. Kluver Bucy Syndrome Kluver Bucy syndrome –associated with temporal lobe damage characteristics: 1. extraordinary tameness 2. lack of fear 3. put anything in the mouth 4. mount anything