Question

Question 14 1 pts What is true about pruning in the adolescent brain? Teenagers with schizophrenia seem to have less gray matter (fewer synaptic connections) than teenagers without schizophrenia. The brains of teenagers with schizophrenia seem to undergo less pruning than the brains of teenagers with no schizophrenia. Autism is associated with excessive pruning, leading to fewer synaptic connections, Pruning refers to increasing the number of synaptic connections between neurons in the brain

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Answer 1

ANSWER 14 : OPTION 1 -

Teenagers with schizophrenia seem to have less gray matter ( fewer synaptic connections) than the teenagers without schizophrenia.

Explanation:

During early childhood the brain of a child produces huge amounts of neurons due to the need of higher synaptic transmissions during the child development. However at a teenage stage in life, the brain naturally starts the process of trimming or pruning the neurons. During this pruning, the execcess number of neurons is reduced so that the efficiency of required neurons is optimised. However, if the printing is execcessive; as in the case of a teenaged schizophrenic brain, the number of neurons is reduced to such an extent that the normal synaptic transmission is highly affected as opposed to being optimised. As a result the synaptic connection is hampered. When the neurons are pruned , the number of cell body of a neuron is also reduced. Since the cell body of a neuron has gray matter, the excessive pruning leads to a reduction in gray matter of the brain of a teenage having schizophrenia. Due to this reason, a tennage schizophrenic brain has lesser neurons, lesser gray matter and therefore; the reduced synaptic transmission.