Evidence against independence of peripheral latencies and central threshold in temporal-order perception.

ABSTRACT: Independent-channels models of temporal-order and simultaneity perception assume that a central (amodal) timing mechanism compares the arrival times of incoming sensory signals independently of peripheral (modal) events. This implies that peripheral latencies and central threshold are additive. The present study tested whether the central threshold is invariant to intramodal versus intermodal stimulation (Experiment 1) and strong versus weak intermodal stimulation (Experiment 2). The central threshold was isolated via the distance between the two psychometric functions in the ternary-response task, which does not depend on peripheral latencies under the additivity assumption. In Experiment 1, the central threshold was estimated to be significantly higher for intermodal stimuli (light and s

SUBMITTER: Kelber P 

PROVIDER: S-EPMC12913284 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature