Suffix Effects and Probe Modality in Probed Recall: Implications for Readout from Sensory Memory

Abstract

The effect of a redundant stimulus suffix was investigated in three experiments using a probed recall task. The probe modality was auditory in the first experiment and visual in the second. In the third experiment, both probe modalities were tested. The presentation rate was varied in all three experiments and was confounded with the delay of the suffix. The suffix was found to have a small and approximately equal effect on the last six serial positions. In contrast to the predictions from Crowder and Morton's (1969) PAS model, presentation rate and suffix delay did not interact with the suffix effect. The results indicate that at least six items can be simultaneously represented in PAS, that there is no appreciable decay of information from PAS during presentation of the last list items, and that readout of PAS information does not occur either during list presentation or between the end of list presentation and the beginning of overt report.

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References

Crowder

R. G.

(1967). Prefix effects in immediate memory. Canadian Journal of Psychology 21, 450–61.

Crowder

R. G.

(1969). Improved recall for digits with delayed recall cues. Journal of Experimental Psychology 82, 258–62.

Crowder

R. G.

(1971). Waiting for the stimulus suffix: Decay, delay, rhythm and readout in immediate memory. Quarterly Journal of Experimental Psychology 23, 324–40.

Crowder

R. G.

(1978). Mechanisms of auditory backward masking in the stimulus suffix effect. Psychological Review 85, 502–24.

Crowder

R. G.

Morton

(1969). Precategorical Acoustic Storage (PAS). Perception and Psychophysics 5, 365–73.

Engle

R. W.

(1974). The modality effect: Is precategorical acoustic storage responsible? Journal of Experimental Psychology 102, 824–9.

Engle

R. W.

Mobley

L. A.

(1976). The modality effect: What happens in long-term memory? Journal of Verbal Learning and Verbal Behavior 15, 519–28.

Gardiner

J. M.

Gregg

V. H.

(1979). When auditory memory is not overwritten. Journal of Verbal Learning and Verbal Behavior 18, 705–20.

Morton

(1976). Two mechanisms in the stimulus suffix effect. Memory and Cognition 4, 144–9.

10.

Morton

Holloway

C. M.

(1970). Absence of a cross-modal “suffix effect” in short-term memory. Quarterly Journal of Experimental Psychology 22, 167–76.

11.

Morton

Crowder

R. G.

Prussin

H. A.

(1971). Experiments with the stimulus suffix effect. Journal of Experimental Psychology Monograph 91, 169–90.

12.

Murdoch

B. B.

Jr (1967). Auditory and visual stores in short term memory. Acta Psychologica 27, 316–24.

13.

Parkinson

S. R.

(1978). An alternative interpretation of the stimulus suffix effect. Journal of Experimental Psychology: Human Learning and Memory 4, 362–9.

14.

Penney

C. G.

(1975). Modality effects in short-term verbal memory. Psychological Bulletin 82, 68–84.

15.

Penney

C. G.

(1979). Interactions of suffix effects with suffix delay and recall modality in serial recall. Journal of Experimental Psychology: Human Learning and Memory 5, 507–21.

16.

Roediger

H. L.

III Crowder

R. G.

(1976). Recall instructions and the suffix effect. American Journal of Psychology 89, 115–26.

17.

Watkins

O. C.

Watkins

M. J.

(1980). The modality effect and echoic persistence. Journal of Experimental Psychology: General 109, 251–78.