Visual Object Representation: Interpreting Neurophysiological Data within a Computational Framework

Plaut, David C.; Farah, Martha J.

doi:10.1162/jocn.1990.2.4.320

Cited by 57 publications

(57 citation statements)

References 95 publications

(131 reference statements)

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“…Although it may still be premature to localize repetition priming, the suggestion that visual repetition priming is mediated in IT is appealing for a number of reasons. IT plays a critical role in object recognition (see Plaut & Farah, 1990, for a review), and large receptive fields in IT make it insensitive to variations in location or scale. Despite equating across locations in space, IT remains acutely sensitive to shape properties of stimuli.…”

Section: Discussionmentioning

confidence: 99%

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Effects of color and pattern on implicit and explicit picture memory.

Cave¹,

Bost²,

Cobb³

1996

Journal of Experimental Psychology: Learning, Memory, and Cogni

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The degree to which repetition priming is perceptually specific is informative about the mechanisms of implicit memory as well as of perceptual processing. In 2 sets of experiments with pictures as stimuli, we tested the effects of color and pattern manipulations between study and test on implicit memory (i.e., naming facilitation) and explicit memory (i.e., 2 forms of recognition). These manipulations did not affect priming. However, participants were able to explicitly detect stimulus changes at above-chance levels. Changes in color also produced small decrements in participants' ability to judge that repeated stimuli were old on a recognition test. Experiment 2 showed diminished priming with changes in the stimulus exemplar (i.e., a different picture of the same named object) from study to test, which demonstrated that the picture-naming paradigm is sensitive to changes in physical attributes. The results suggest that physical attributes that are not essential to the formation of a shape representation do not influence repetition priming in a basic identification paradigm. Suggestions for how priming may be mediated are discussed.

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Section: Discussionmentioning

confidence: 99%

“…Neurons in inferotemporal cortex (IT) seem to act in just this way (see Plaut & Farah, 1990, for a review). IT is the end stage of processing in the what visual system (Ungerleider & Mishkin, 1982) that is essential for object recognition.…”

mentioning

confidence: 99%

Effects of color and pattern on implicit and explicit picture memory.

Cave¹,

Bost²,

Cobb³

1996

Journal of Experimental Psychology: Learning, Memory, and Cogni

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show abstract

“…This idea is based to a large extent on findings from single cell recordings and brain lesions in nonhuman primates indicating that inferior temporal regions are involved in the computation of size and reflection invariant object representations (for review, see Plaut & Farah, 1990). It is possible, of course, that the precise neuroanatomical locus of this system differs in monkey and man, but the human data on this point are not conclusive.…”

Section: Structural Description Systemmentioning

confidence: 99%

Priming and Multiple Memory Systems: Perceptual Mechanisms of Implicit Memory

Schacter

1992

Journal of Cognitive Neuroscience

383

307

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Research examining the relation between explicit and implicit forms of memory has generated a great deal of evidence concerning the issue of multiple memory systems. This article focuses on an extensively studied implicit memory phenomenon, known as direct or repetition priming, and examines the hypothesis that priming effects on various tasks reflect the operation of a perceptual representation system (PRS)—a class of cortically based subsystems that operate at a presemantic level and support non conscious expressions of memory. Three PRS subsystems are examined: visual word form, structural description, and auditory word form. Pertinent cognitive, neuropsychological, and neurobiological evidence is reviewed, alternative classificatory schemes are discussed, and important conceptual and terminological issues are considered.

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“…This overall pattern of ¢ndings has led us to propose that priming depends on a structural description system (Riddoch & Humphreys 1987) that represents information about the global structure of an object independently of its retinal size and left/right orientation (for an alternative interpretation, see Ratcli¡ & McKoon 1995;see also, Schacter & Cooper 1995). Schacter et al (1991) noted that numerous lesion studies and experiments using electrophysiological recordings implicate regions of inferior temporal cortex in the identi¢cation of complex visual stimuli (for reviews, see Plaut & Farah 1990;Tanaka 1993). Studies of animals with lesions to inferior temporal regions suggest that this region participates in the sizeand re£ection-invariant representation of global object structure.…”

Section: I M Pl Ic I T a N D E X Pl Ic I T M E Mory For Nov E L O Bmentioning

confidence: 99%

The cognitive neuroscience of memory: perspectives from neuroimaging research

Schacter

1997

Phil. Trans. R. Soc. Lond. B

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Cognitive neuroscience approaches to memory attempt to elucidate the brain processes and systems that are involved in di¡erent forms of memory and learning. This paper examines recent research from braindamaged patients and neuroimaging studies that bears on the distinction between explicit and implicit forms of memory. Explicit memory refers to conscious recollection of previous experiences, whereas implicit memory refers to the non-conscious e¡ects of past experiences on subsequent performance and behaviour. Converging evidence suggests that an implicit form of memory known as priming is associated with changes in posterior cortical regions that are involved in perceptual processing; some of the same regions may contribute to explicit memory. The hippocampal formation and prefrontal cortex also play important roles in explicit memory. Evidence is presented from recent PET scanning studies that suggests that frontal regions are associated with intentional strategic e¡orts to retrieve recent experiences, whereas the hippocampal formation is associated with some aspect of the actual recollection of an event.

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Visual Object Representation: Interpreting Neurophysiological Data within a Computational Framework

Cited by 57 publications

References 95 publications

Effects of color and pattern on implicit and explicit picture memory.

Effects of color and pattern on implicit and explicit picture memory.

Priming and Multiple Memory Systems: Perceptual Mechanisms of Implicit Memory

The cognitive neuroscience of memory: perspectives from neuroimaging research

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