= Early left anterior negativity
{wiki=Early_left_anterior_negativity}
Early Left Anterior Negativity (ELAN) is an event-related potential (ERP) component observed in neurophysiological studies, particularly in the context of language processing. It typically occurs approximately 200-400 milliseconds after the presentation of a linguistic stimulus (such as a word or sentence) that is semantically or syntactically unexpected. ELAN is characterized by a negative deflection in the EEG signal that is predominantly recorded from electrodes located on the left anterior region of the scalp.
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