•
Cerebral cortex
is the main brain
•
Cerebellum
is “back brain”/little brain in back
•
The
Brainstem
is made of the
Midbrain,
the
Pons,
and the
Medulla
, which is
then followed by the
Spinal Cord (Figure 4.4)
•
Spinal Cord
o
Capable of autonomous function
o
Grey Matter
o
White Matter
o
Spinal Reflexes
Example: The Stretch Reflex
•
Brainstem
o
Houses the basic programs of survival
o
A complement of survival reflexes (gagging, breathing, swallowing, etc)
o
Uses spinal reflexes to produce useful behavior
o
The reticular formation and sleep
o
“inner core” of brain; regulates life-support
o
Rests atop and connects to spinal cord
o
Contains
medulla
(vital involuntary functions),
pons
,
reticular
formation
(sleep, arousal, attention)
o
Attaches to
Cerebellum
(balance/movement)
•
Cerebellum
o
Essential for movement
•
Subcortical structures
o
Control basic drives and emotions
•
Cerebral cortex
o
Underlies complex mental activity
•
Limbic System
o
Separate the “older” (brainstem and cerebellum) from the “newer”
(cerebral cortex) parts of the brain
o
Critical to Motivation, Emotion, Memory
o
Consists of
Hypothalamus, Thalamus
,
Hippocampus, Amygdala, and
Basal Ganglia
Thalamus
•
Sensory Relay Station (gateway to cortex)
Amygdala
•
Aggression Center (emotion)
Hippocampus
•
Memory formation
Hypothalamus
•
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- Spring '08
- Henriques
- Psychology
-
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