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Mod 12
Biological Bases of Behavior
| Term | Definition |
|---|---|
| Frontal Lobe | -Behind the forehead, last to fully develop, and is connected to speaking, judgement, decision making, and impulse control -Contains broca's area on the left side: expressive speech |
| Parietal lobe | -Top of the head, contains Somatosensory cortex and motor cortex -Functions: Spatial organization, sensory information |
| Somatosensory cortex | Receives information from sense organs |
| Motor cortex | Sends commands back to the body |
| Temporal lobe | -Near your ears (Auditory processing, Auditory cortex) |
| Auditory processing | Left lobe contains Wernicke’s Area: receptive speech |
| Auditory Cortex | Receives information from OPPOSITE ear |
| Broca’s & Wernicke’s Aphasia | the loss of ability to understand or perform speech |
| Occipital Lobe | -Back of your head, and Contains visual cortex Receives information from opposite visual field of each eye |
| Cerebellum | -“Little Brain” Functions: Balance, motor function & memory |
| Two Hemispheres | Connected by the corpus callosum The brain is cross-wired to the body |
| Left hemisphere | Language, analytical thinking, control of right side of body |
| Right hemisphere | Spatial reasoning, control of left side of body |
| Split Brain & Hemispherectomy | Brain hemispheres can be separated to stop seizure activity -Sever corpus callosum -Remove one half of the brain |
| Plasticity | Ability of the brain to find new pathways around damaged areas |
| Neurogenesis | Production of new neurons |
| Split Brain & Hemispherectomy con’t | -Split brain studies: Michael Gazzaniga -Left brain reads; right brain interprets |