Common electrophysiological signatures of relative magnitude in both space and time.

ABSTRACT: Duration processing can be indexed by the amplitude of two electrophysiological potentials, the contingent negative variation (CNV) and the late positive component (LPC). When a currently elapsing event becomes longer than that of a memorized standard, CNV amplitude begins to resolve back to baseline even if the event is not yet over, and LPC amplitude, evoked by event offset, is reduced. Using electroencephalography in 30 human participants, we examined whether these patterns were unique to explicit duration judgements or might also be observed during spatial judgements. Two dynamic visual stimuli were presented consecutively on each trial. The relative duration (temporal task) or distance (spatial task) of the second stimulus was compared to the first. Confirming prior findings, CNV dyna

SUBMITTER: Mieulet E 

PROVIDER: S-EPMC12606332 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature