6 subjects were each auditorily presented six lists of 7-digit numbers for retention intervals of 0, 5, and 10 sec. Pupil size was recorded during stimulus presentation, retention interval, and recall of items. Results indicated that pupil dilation occurred during encoding and retrieval of stimulus items. Pupillary constriction was found during the retention interval when rehearsal was presumed to occur.
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References
1.
BeattyJ.KahnemanD.Pupillary changes in two memory tasks. Psychonomic Science, 1966, 5, 371–372.
2.
CarverR. P.Pupil dilation and its relationship to information processing during reading and listening. Journal of Applied Psychology, 1971, 55, 126–134.
3.
CrowE. L.DavisF. A.MaxfieldM. W.Statistics manual. New York: Dover, 1960.
HessE. H.Pupillometrics: A method of studying mental, emotional, and sensory processes. In GreenfieldN. S.SternbachR. A. (Eds.), Handbook of psychophysiology. New York: Holt, Rinehart & Winston, 1972. Pp. 491–531.
6.
KahnemanD.BeattyJ.Pupil diameter and load on memory. Science, 1966, 154, 1583–1585.
7.
KahnemanD.OnuskaL.WolmanR.Effects of grouping on the pupillary response in a short-term memory task. Quarterly Journal of Experimental Psychology, 1968, 20, 309–311.
8.
KahnemanD.WrightP.Changes of pupil size and rehearsal strategies in a short-term memory task. Quarterly Journal of Experimental Psychology, 1971, 23, 187–196.
