forebrain

n. the part of the brain that develops from the anterior section of the neural tube in the embryo, containing the cerebrum and the diencephalon. The former comprises the cerebral hemispheres with their various regions (e.g., basal ganglia, amygdala, hippocampus); the latter comprises the thalamus and hypothalamus. Also called prosencephalon.

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Psychology term of the day

February 22nd 2025

excitotoxic lesion

a lesion caused by paroxysmal overactivity of neurons, which may be associated with seizures or occur after stroke. This is most commonly caused by overstimulation of neurons by excitatory amino acids (see excitotoxicity).