Biology · Neurobiology and Developmental Disorders
In many developmental disabilities, such as Fragile X Syndrome, 'Synaptic Pruning' is impaired. What is the functional consequence of this anatomical limitation?
- 1An insufficient number of neurons are produced during the prenatal stage
- 2The brain fails to eliminate weak or redundant neural connections, resulting in 'noisy' neural processing and difficulty with abstract reasoning✓
- 3The myelin sheath thickens excessively, slowing down the speed of electrical impulses
- 4The brain shifts all processing to the cerebellum, bypassing the frontal lobe entirely
Correct answer
The brain fails to eliminate weak or redundant neural connections, resulting in 'noisy' neural processing and difficulty with abstract reasoning
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