PSYA01H3 Chapter Notes - Chapter 3: Temporal Lobe, Cerebral Cortex, Frontal Lobe
Chapter 3: Biological Psychology
Neurons and the Nervous System
Nervous System Chart
Nervous System
Examples
To illustrate this system in action, consider the following two situations:
1. Touching a hot iron… sesor euros detet the heat ad sed a excitatory message
to inter-neurons in the spinal cord or brain. These inter-neurons then send excitatory
signals to the motors neurons to retract the hand immediately.
2. Carring a hot asserole dish… again, the heat may make you want to drop the dish via
the same process described above, BUT this message is temporarily countered by the
brain by it sending inhibitory signals either to the inter-neurons or to the motor neurons
Neurons
Action Potential
Synapses
Net Leture…the Brain!
The Brain! Part 1
Cortex vs. Midbrain
• The cerebral cortex is the place where high level perception of the world occurs, and is
also the place where controlled motor activities originate. In this sense, it is the place
where all of our controlled interactions with the external world occur
• This contrasts with a number of more basic brain regions which are more devoted to
monitoring and controlling internal behaviours and automatic responses to external
stimuli
The Cortex
• Parietal Lobe
• Occupital Lobe
• Frontal Lobe
• Temporal Lobe
• Cerebellum
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Document Summary
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