Introduction to Psychology

1
Introduction to Psychology

• Class 9 Neuroscience 2
• Myers 52-62
• June 26, 06

2
Evolution of the Brain

• Reptilian ? Paleomammalian ? Neomammalian

3
The Cerebral Cortex
4

• Frontal (Forehead to top) ? Motor Cortex
• Parietal (Top to rear) ? Sensory Cortex
• Occipital (Back) ? Visual Cortex
• Temporal (Above ears) ? Auditory Cortex

5
Motor/Sensory Cortex

• Contra-lateral
• Inverted homunculus
• Unequal representation

6
Language Areas

• Brocas Area
• Expression
• Motor aphasia
• Wernickes Area
• Comprehension
• Sensory aphasia

LEFT HEMISPHERE
FILM THE MIND MODULE 8
7
Aphasias

• Motor (telegraphic speech) "Yes... ah...
  Monday... er... Dad and Peter H... (his own
  name), and Dad.... er... hospital... and ah...
  Wednesday... Wednesday, nine o'clock... and oh...
  Thursday... ten o'clock, ah doctors... two... an'
  doctors... and er... teeth... yah.
• Sensory (word salad) I called my mother on the
  television and did not understand the door. It
  was too breakfast, but they came from far to
  near. My mother is not too old for me to be
  young. Word salad

8
Brain Plasticity

• The brains capacity for modification of
  functioning
• Shown by re-organization of pre-wiring
• Examples Removal of hemisphere, blindfolding
  study

FILM THE BRAIN - DVD 1 - MODULE 10
9
Split-Brains

• Epilepsy and the corpus callosum
• Hemispheric specialization
• - Left hemisphere ?Logical, sequential,
  words/numbers, verbal/controls speech
• - Right hemisphere ? Intuitive, expressive,
  shapes/music/faces, non-verbal

FILM SCIENTIFIC AMERICAN - DVD 1 - SEGMENT 7