Auditory list memory in rhesus monkeys

Journal/Book: Psychol Sci. 1998; 9: 350 Main Street, Ste 6, Malden, MA 02148, USA. Blackwell Publishers. 91-98.

Abstract: Auditory memory of 2 rhesus monkeys was tested in a serial probe recognition task. Lists of four environmental or natural sounds were followed by a retention interval and a test. The test matched one of the list items on half of the trials. The retention interval was varied across sessions. Six experiments showed similar results and changes in the serial position function. At short retention intervals, there was good memory for first list items (primacy effect) and poor memory for last list items. At intermediate retention intervals, memory improved for last list items (recency effect). At long retention intervals (20 s and 30 s), the recency effect was strong, and the primacy effect had dissipated. These auditory primacy and recency effects and their changes with retention interval were opposite to those for visual memory. Implications for processes and mechanisms of memory are discussed.

Note: Article Wright AA, Univ Texas, Sch Med, Dept Neurobiol & Anat, POB 20708, Houston,TX 77225 USA

Keyword(s): SERIAL LIST; INTERSTIMULUS-INTERVAL; RECENCY; PRIMACY; DISTINCTIVENESS; RECOGNITION; RETENTION; RECALL

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