Evoked potential correlates of visual item recognition during memory-scanning tasks

Gomer, Frank E.; Spicuzza, Ronald J.; O'Donnell, Robert D.

doi:10.3758/bf03326547

Cited by 121 publications

(46 citation statements)

References 25 publications

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“…P3 latency can therefore be used to determine which processing stages are affected by set size during visual search: If the effects ofset size on RT for conjunction targets are due to an increase in the duration of stimulus evaluation, then the slopes relating P31atency and RT to set size should be identical. A similar logic has been used to interpret ERPs recorded during memory search tasks (see, e.g., Adam & Collins, 1978;Ford, Roth, Mohs, Hopkins, & Kopell, 1979;Gomer, Spicuzza, & O'Donnell, 1976;Michalewski, Patterson, Pratt, Barret, & Starr, 1988). In these experiments, P31atency increased linearly as a function of memory set size, but the slope was shallower for P3 latency than for RT, suggesting that part of the effect of memory set size on RT was due to postrecognition processes.…”

mentioning

confidence: 99%

Electrophysiological evidence for parallel and serial processing during visual search

Luck

Hillyard

1990

Perception & Psychophysics

191

131

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Event-related potentials were recorded from young adults during a visual search task in order to evaluate parallel and serial models of visual processing in the context of Treisman's feature integration theory. Parallel and serial search strategies were produced by the use offeature-present and feature-absent targets, respectively. In the feature-absent condition, the slopes of the functions relating reaction time and latency of the P3 component to set size were essentially identical, indicating that the longer reaction times observed for larger set sizes can be accounted for solely by changes in stimulus identification and classification time, rather than changes in postperceptual processing stages. In addition, the amplitude of the P3 wave on target-present trials in this condition increased with set size and was greater when the preceding trial contained a target, whereas P3 activity was minimal on target-absent trials. These effects are consistent with the serial self-terminating search model and appear to contradict parallel processing accounts of attention-demanding visual search performance, at least for a subset of search paradigms. Differences in ERP scalp distributions further suggested that different physiological processes are utilized for the detection of feature presence and absence.

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mentioning

confidence: 99%

Electrophysiological evidence for parallel and serial processing during visual search

Luck

Hillyard

1990

Perception & Psychophysics

191

131

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“…P260, and its associated principal component 5, probably corresponds to human P300. Their polarities and latencies correspond well, especially for easily distinguishable stimuli [ 11,33,35]. P26O's complex interaction of controlling factors (component 5 condition-location-stimulus interaction) is comparable to that of human P300 (e.g.…”

Section: Endogenous Componentsmentioning

confidence: 74%

Middle and long latency auditory evoked potentials in cat. I. Component definition and dependence on behavioral factors

Parley

Starr

1983

Hearing Research

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Middle (IO-50 ms) and long (50-600 ms) latency auditory evoked potentials (AEPs) were investigated in artificially respired, muscle-paralyzed cats. Similarity to human potentials of comparable latencies was examined in two ways: (1) the similarity of waveform features such as peak amplitude, polarity and latency, and (2) the effects of task-related variables on these various waveform features. Four behavioral variations of a classical pupillary conditioning paradigm were used to vary attention and arousal. Twelve peaks and troughs were identified in the AEP: PIO, N13, P17. N22. P31, N41. P55, N70, NIOO. Nl40. P260 and N520. Principal components analysis (PCA) defined 7 AEP components, some of which spanned several peaks. Analysis both of peak latencies and amplitudes.and of principal component scores, revealed differential effects of the behavioral manipulations on these components: those with latencies longer than 50 ms were strongly influenced by behavioral variations, while earlier components were relatively immune to these effects. On the basis of these findings. several relationships between cat and human AEP components were suggested. Specifically, peaks PlO-P41 in the cat were thought related to human middle latency components, cat P55 to human P50. cat N 140 to human N300. and cat P260 to human P300. Cat N520 was comparable to several long latency components in humans, No obvious correspondences between cat AEP components and human N90 and PI70 were identified.

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“…The result that non-informative feedback (white noise) elicited the largest P300 amplitude in the DE SW ART, KOK, AND DAS-SMAAL coding of stimulus characteristics (Squires et al, 1977;Kutas et al, 1977;Gomer, Spicuzza, & O'Donnell, 1976;Kok, Note 1). In the ConceptIdentification task of the present study, the feedback stimuli were easy to discriminate, familiar, not complex, and not presented in a degraded way.…”

Section: Discussionmentioning

confidence: 99%

P300 and Uncertainty Reduction in a Concept‐Identification Task

Swart¹,

Kok²,

Das-Smaal³

1981

Psychophysiology

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The relationship between the amplitude of P300, the mean amplitude of the Slow Wave, and uncertainty reduction after (dis)confirmation of hypotheses was studied in a Concept-Identification task. The subjects had to categorize stimuli according to a conceptual mIe (joint denial or exclusion) and to rate the confidence that their classification was correct. Three types of feedback were distinguished: confirming (subject's categorization was correct), disconfirming (subject's categorization was incorrect), and non-informative feedback. The EEG was averaged separately according to the three types of feedback and the two confidence ratings (low, high).The data showed the predicted interaction between type of feedback and confidence level. A larger P300 amplitude tumed up after confirming feedback when the subject was less confident, than when he was more confident. The reverse was found after disconfirming feedback. The P300 amplitude after non-informative feedback was not influenced by confidence. The mean amplitude of the Slow Wave showed approximately the same interaction pattem.The results were interpreted in terms of changes in the probability of hypotheses which subjects use to categorize stimuli in a Concept-Identification task.

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Evoked potential correlates of visual item recognition during memory-scanning tasks

Cited by 121 publications

References 25 publications

Electrophysiological evidence for parallel and serial processing during visual search

Electrophysiological evidence for parallel and serial processing during visual search

Middle and long latency auditory evoked potentials in cat. I. Component definition and dependence on behavioral factors

P300 and Uncertainty Reduction in a Concept‐Identification Task

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