Wize University Psychology Textbook > Language & Thought
Concepts, Categories, & The Brain
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Concepts, Categories, & The Brain
Prototypes are classified faster when presented to the right visual field (processed in the left hemisphere of the brain)
Visual cortex also involved in prototype formation
Exemplars are classified faster when images are presented to the left visual field (processed in the right hemisphere of the brain)
Prefrontal cortex and basal ganglia involved in exemplar learning
Category-Specific Deficits
Category-specific deficit - inability to recognize objects that belong to a specific category. Other categories are unaffected.
- Can be caused by traumatic brain injury, stroke, or other disruption in brain development
Category affected depends on where the brain is damaged
- Front of the left temporal lobe - animals
- Where temporal, parietal, and occipital lobe meet - names of tools
Brain regions involved in identifying particular categories are similar in people who have been blind since birth, indicating they don't develop in response to visual experience.
Practice Question: Concepts, Categories, & The Brain
Raj has a category-specific deficit that affects his ability to recognize fruits. He is likely to also have difficulty with: