Ear asymmetry and the temporal uncertainty of signals in sustained attention

Autor: Warm, Joel, Schumsky, Donald, Hawley, Douglas
Zdroj: Bulletin of the Psychonomic Society; May 1976, Vol. 7 Issue: 5 p413-416, 4p
Abstrakt: Subjects listened for increments in the duration of recurrent white noise pulses delivered to either the left or the right ear during a 1-h vigilance session. The temporal uncertainty of critical signal occurrences was varied by use of signal densities of 24, 48, and 96 signals/hour. Response times to signal detections increased as a function of an information measure of the temporal uncertainty of signals with a markedly stronger effect from left-ear presentation. Thus, a functional lateral asymmetry in the cortical processing of temporal information in this type of task was indicated.
Databáze: Supplemental Index