The effect of discrimination training on pattern equivalence in monkeys with inferotemporal and lateral striate lesions

Butter, Charles M.

doi:10.1016/0028-3932(68)90036-5

Cited by 47 publications

(19 citation statements)

References 17 publications

(24 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, with the use of a mathematical stimulus sampling technique in analyzing data obtained in a multiple-choice experiment, resections of the inferotemporal cortex were shown to impair sampling when monkeys were trained to choose one of several objects (Pribram, 196Oa). A similar result was obtained when multiple features of a pattern were critical to performance (Butter, 1968). Furthermore, with the use of brain electrical responses, it was shown that recordings made from striate (visual projection) cortex reflected all of the feature characteristics of a briefly (50 msec) presented multifeatured stimulus.…”

supporting

confidence: 57%

Cortical involvement in visual scan in the monkey

Bolster

Pribram

1993

Perception & Psychophysics

View full text Add to dashboard Cite

Monkeys performed a visual search task for food reward. Green square targets were embedded in 3 x 3 arrays of colored forms. In distinct-feature arrays, all nontarget stimuli were red diamonds, whereas in shared-feature arrays, some nontarget stimuli shared either form (red square) or color (green diamond) with the target. Reaction time was slower for shared-feature arrays and linearly related to the number of shared-feature distractors. Errors were more common in sharedfeature arrays, and shared-feature distractors were mistaken for targets more frequently than distinct-feature distractors. Event-related local field potentials were recorded from implanted transcortical electrodes. Significant task-related differences were obtained from association cortex, but not from projection cortex. Results are discussed in terms of the relative contribution of inferotemporal, dorsolateral frontal, and parietal cortex to feature-driven visual scan.Some 30 years ago, J. Z. Young (1962) developed the theme that the primary sensory projection systems of the brain have evolved to map the sensory environment, whereas the more intrinsically connected "association" cortex performs abstract computations on the mapping functions. In discussing this paper, one of us (Pribram, 1962) presented evidence that such abstract computations were composed by sampling the maps in a top-down fashion. More recently, a great deal of interest has been generated by Schneider and Shiffrin's (for a review, see Schneider, Dumais, & Shiffrin, 1984) observations of the conditions that predispose humans toward automatic as opposed to those which predispose them toward controlled processing of sensory input. Automatic processing was considered to operate simultaneously on maps of the input; controlled processing was considered to entail scans (searches) of the input.Additional experiments by Efron have called attention to the fact that a variety of hitherto conflicting or unexplained observations-especially with regard to differences in hemispheric function-can be understood in terms of the order in which sensory input is sampled, or scanned (for a review, see Efron, 1990). Scanning wasThe authors are indebted to Sharon E. Hendricks for collection and analysis of data reported in Experiment I, and to Margaret J. Harrington, Stephen D. Cutcomb, and Ronald M. Ruff for assistance in surgery, computer programming, and data collection in Experiment 2. Funding for this research was provided by grants from the Natural Sciences and Engineering Research Council of Canada to R.B., and from NIHINIMH to K.H.P. Correspondence should be addressed to K. H. Pribram, Center for Brain Research and Informational Sciences, Radford University, Box 6977, Radford, VA 24142. shown to occur during a postexposure period and thus to be independent of eye movement. Some central brain process, shown to be influenced by experience, was inferred to be responsible.In monkeys, several experiments have been carried out in our laboratory to investigate whether indeed the sensory project...

show abstract

supporting

confidence: 57%

Cortical involvement in visual scan in the monkey

Bolster

Pribram

1993

Perception & Psychophysics

View full text Add to dashboard Cite

show abstract

“…Not quite. In addition to impairments in color vision (Heywood et al, 1995), studies of equivalence behavior in which monkeys are trained with one class of stimuli and then tested with slightly altered versions of that same class have shown that monkeys with IT cortex lesions do not rely on the same cues for discriminating stimuli as normal animals do (Butter et al, 1965;Butter and Gekoski, 1966;Butter, 1968;Butter and Doehrman, 1968;Butter and Hirtzel, 1970;Iwai, 1985). It is possible, therefore, that the visual memory impairments that accompany IT cortex lesions might also be a product of disruptions in the processing of visual information.…”

Section: Levels Of Processing Failure?mentioning

confidence: 99%

The Effects of Superior Temporal Cortex Lesions on the Processing and Retention of Auditory Information in Monkeys (Cebus apella)

1996

View full text Add to dashboard Cite

Three monkeys with extensive preoperative training on visual and auditory memory tasks (delayed matching-to-sample), an auditory pattern-discrimination task, and a visual serial-order task, received bilateral lesions of the superior temporal (ST) cortex in two stages, with testing after each lesion. Unilateral ST cortex lesions resulted in only moderate auditory memory impairments, whereas bilateral ST cortex lesions resulted in severe auditory memory impairments. The bilateral ST cortex lesions also resulted in severe impairments in the ability to relearn the auditory pattern-discrimination task. In contrast to the auditory impairments, neither unilateral nor bilateral ST cortex lesions had any effect whatsoever on either visual memory or visual serial-order behavior. These findings indicate that the ST cortex plays a role in auditory processing and retention similar to that played by the inferior temporal cortex for visual processing and retention.

show abstract

“…Butter, Mishkin, and Rosvold (1965;Butter, 1968) found that after IT-lesioned monkeys had learned to discriminate a grating of a particular orientation and color from other patterns they were more likely than normals to inappropriately respond to stimuli of a similar orientation or color as the original rewarded stimulus. Analogous results obtain for the generalization of discriminations involving angles (Blake, Jarvis, & Mishkin, 1977).…”

Section: Lesion Studies In Animalsmentioning

confidence: 99%

Visual Object Representation: Interpreting Neurophysiological Data within a Computational Framework

Plaut

Farah

1990

Journal of Cognitive Neuroscience

View full text Add to dashboard Cite

Abstractrn Significant progress has been made in understanding vision by combining computational and neuroscientific constraints. However, for the most part these integrative approaches have been limited to low-level visual processing. Recent advances in our understanding of high-level vision in the two separate disciplines warrant an attempt to relate and integrate these results to extend our understanding of vision through object representation and recognition. This paper is an attempt to contribute to this goal, by using a computational framework arising out of computer vision research to organize and interpret human and primate neurophysiology and neuropsychology. rn

show abstract

The effect of discrimination training on pattern equivalence in monkeys with inferotemporal and lateral striate lesions

Cited by 47 publications

References 17 publications

Cortical involvement in visual scan in the monkey

Cortical involvement in visual scan in the monkey

The Effects of Superior Temporal Cortex Lesions on the Processing and Retention of Auditory Information in Monkeys (Cebus apella)

Visual Object Representation: Interpreting Neurophysiological Data within a Computational Framework

Contact Info

Product

Resources

About