tonic–clonic seizure

a seizure characterized by both tonic and clonic motor movements. In the tonic phase, the muscles go into spasm and the individual falls to the ground unconscious; breathing may be suspended. This is followed by the clonic phase, marked by rapidly alternating contraction and relaxation of the muscles, resulting in jaw movements (the tongue may be bitten) and urinary incontinence. Formerly called grand mal seizure.

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Psychology term of the day

January 20th 2025

tox- (toxic-; toxo-; toxico-)

Sorry, "tox-toxic-toxo-toxico" is not in the Dictionary of Psychology. Please report to APA if you believe this is an error.