chorea

n. irregular and involuntary jerky movements of the limbs and facial muscles. Chorea is associated with various disorders, including Huntington’s disease and Sydenham’s chorea (formerly known as Saint Vitus’s dance), which occurs as a complication of a streptococcal infection (e.g., rheumatic fever). —choreal adj. —choreic adj.

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Psychology term of the day

November 16th 2024

electroretinography

n. a recording (via an instrument called an electroretinograph) of the electrical activity of the retina during visual stimulation using electrodes placed on the anesthetized surface of the eye. Different segments of the recorded waveform (called an electroretinogram [ERG]) correspond to activity in the different cells and layers of the retina.