Walker, Peter and Hitch, Graham J. and Dewhurst, Stephen A. and Whiteley, Helen E. and Brandimonte, Maria A. (1997) The representation of nonstructural information in visual memory: Evidence from image combination. Memory and Cognition, 25 (4). pp. 484-491. ISSN 0090-502XFull text not available from this repository.
Two experiments investigated the differential representation of the figure and ground of a picture in visual short-term and long-term memory. It is known (Hitch, Brandimonte, & Walker, 1995) that subjects find it more difficult to combine mental images of two separately presented pictures in order to identify a novel form when the two pictures are incongruent in color (i.e., when a black-on-white line drawing has to be combined with a white-on-black drawing). In the present experiments, the figures were depicted in solid form to allow color congruity to be varied independently for figure and ground. Results showed a clear impairment in image combination when the to-be-combined figures were incongruent in color (black-on-gray and white-on-gray) but not when their grounds were incongruently colored (gray-on-black and gray-on-white). In this way, image combination was seen to be supported by a representation of the object depicted in the picture rather than by a literal representation of the picture itself (i.e., a pictorial code). In line with previous findings, the same representation was seen to support image combination based on short-term memory (Experiment 1) and long-term memory (Experiment 2), provided that in the latter case verbal recoding was precluded. When verbal recoding was allowed, image combination based on long-term memory was insensitive to color congruity, implying the involvement of a more abstract structural representation.
|Journal or Publication Title:||Memory and Cognition|
|Subjects:||B Philosophy. Psychology. Religion > BF Psychology|
|Departments:||Faculty of Science and Technology > Psychology|
|Deposited By:||Dr Peter Walker|
|Deposited On:||31 Jul 2008 11:57|
|Last Modified:||10 Dec 2016 01:10|
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