| Popis: |
Frequency discrimination for the seventh tone in ten‐tone sequences was examined in a same‐different delayed comparison procedure with highly trained subjects. Performance for interstimulus intervals (ISIs) of 8 or 16 sec was compared for blank ISIs vs ISIs containing interpolated tonal stimuli. Unlike some recent reports, the level of performance observed for a blank ISI was not reduced by interpolated stimuli or an interpolated task. The parameters included similarity of the interpolated stimulus to the standard, presence or absence of a decision task, and placement of the interpolated stimuli and task in the ISI. The result suggests that the capacity for brief auditory memory for nonverbal material may be organized differently from that serving verbal memory. [This research was supported by NINDS Grant No. NS03856 and NIGMS Grant No. GM1900.] |
