Interference with visual short-term memory.

Working memory (Baddeley and Hitch 1974) incorporates the notion of a visuo-spatial sketch pad; a mechanism thought to be specialized for short-term storage of visuo-spatial material. However, the nature and characteristics of this hypothesized mechanism are as yet unclear. Two experiments are reported which examined selective interference in short-term visual memory. Experiment 1 contrasted recognition memory span for visual matrix patterns with that for visually presented letter sequences. These two span tasks were combined with concurrent arithmetic or a concurrent task which involved manipulation of visuo-spatial material. Results suggested that although there was a small, significant disruption by concurrent arithmetic of span for the matrix patterns, there was a substantially larger disruption of the letter span task. The converse was true for the secondary visuo-spatial task. Experiment 2 combined the span tasks with two established tasks developed by Brooks (1967). Span for matrix patterns was disrupted by a visuo-spatial task but not by a secondary verbal task. The converse was true for letter span. These results suggest that the impairment in short-term visual memory resulting from secondary arithmetic reflects a small general processing load, but that the selective interference due to mode of processing is by far the stronger effect. Results are interpreted as being entirely consistent with the notion of a specialized visuo-spatial mechanism in working memory.

[1]  E. Farmer,et al.  Evidence for a Visuo-Spatial Scratch-Pad in Working Memory , 1986 .

[2]  W. A. Phillips,et al.  Components of Visual Memory , 1977 .

[3]  L. Brooks.  The Suppression of Visualization by Reading , 1967, The Quarterly journal of experimental psychology.

[4]  Giuseppe Vallar,et al.  Fractionation of working memory: Neuropsychological evidence for a phonological short-term store , 1984 .

[5]  M. Alberoni,et al.  Anarthria and Verbal Short-Term Memory , 1989 .

[6]  S E Avons,et al.  Representation of matrix patterns in long- and short-term visual memory. , 1987, Acta psychologica.

[7]  E. Hunt,et al.  Individual Differences in Attention. , 1989 .

[8]  N Moray,et al.  Where is capacity limited? A survey and a model. , 1967, Acta psychologica.

[9]  W A Phillips,et al.  Interference with Visualization , 1977, The Quarterly journal of experimental psychology.

[10]  Robert H. Logie,et al.  Cognitive processes in counting. , 1987 .

[11]  Derek Besner,et al.  Phonology, Lexical Access in Reading, and Articulatory Suppression: A Critical Review , 1987 .

[12]  P. McLeod.  A Dual Task Response Modality Effect: Support for Multiprocessor Models of Attention , 1977 .

[13]  P. H. Lindsay,et al.  Quantification of shared capacity processing in auditory and visual discrimination. , 1967, Acta psychologica.

[14]  R. Logie.  Visuo-Spatial Processing in Working Memory , 1986, The Quarterly journal of experimental psychology. A, Human experimental psychology.

[15]  R. Finke.  Levels of equivalence in imagery and perception. , 1980 .

[16]  J. Wilson,et al.  Developmental differences in the span of visual memory for pattern , 1987 .

[17]  M. Farah.  Is visual imagery really visual? Overlooked evidence from neuropsychology. , 1988, Psychological review.

[18]  Donald E. Broadbent,et al.  Recency Effects in Visual Memory , 1981 .

[19]  S. Kosslyn.  Image and mind , 1982 .

[20]  Emanuel Donchin,et al.  Working memory in the acquisition of complex cognitive skills , 1989 .

[21]  Alan D. Baddeley,et al.  Imagery and Working Memory , 1988 .

[22]  Daniel Gopher,et al.  On the Economy of the Human Processing System: A Model of Multiple Capacity. , 1977 .

[23]  Alan D. Baddeley,et al.  Disruption of short-term memory by unattended speech : Implications for the structure of working memory , 1982 .

[24]  Peter Johnson.  The Functional Equivalence of Imagery and Movement , 1982, The Quarterly journal of experimental psychology. A, Human experimental psychology.

[25]  T. Shallice,et al.  Please Scroll down for Article the Quarterly Journal of Experimental Psychology Independent Functioning of Verbal Memory Stores: a Neuropsychological Study Independent Functioning of Verbal Memory Stores : a Neuropsychological Study , 2022 .

[26]  William A. Phillips,et al.  Short-Term Visual Memory , 1983 .

[27]  M. Farah.  The neurological basis of mental imagery: A componential analysis , 1984, Cognition.

[28]  J. R. Erickson,et al.  Short-term memory for Chinese characters and radicals , 1988, Memory & cognition.

[29]  N. Morris.  Working memory constellations , 1986 .

[30]  J. G. Quinn,et al.  Movement and Attention in Visual Working Memory , 1986, The Quarterly journal of experimental psychology. A, Human experimental psychology.

[31]  N Morris,et al.  Exploring the Visuo-Spatial Scratch Pad , 1987, The Quarterly journal of experimental psychology. A, Human experimental psychology.

[32]  A. Baddeley,et al.  Word length and the structure of short-term memory , 1975 .

[33]  R. Finke,et al.  Theories relating mental imagery to perception. , 1985, Psychological bulletin.

[34]  Andrew W. Ellis,et al.  Errors in speech and short-term memory: The effects of phonemic similarity and syllable position , 1980 .

[35]  R. Conrad,et al.  Acoustic confusions in immediate memory. , 1964 .