Selective attention to color and location: An analysis with event-related brain potentials

Hillyard, Steven A.; Münte, Thomas F.

doi:10.3758/bf03202679

Cited by 590 publications

(359 citation statements)

References 41 publications

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“…The V1 ROI exhibits only weak differential activity that is selective for the target presentation. The target-selective activity recorded in the LOC and V4 ROIs may be related to the previously described "Selection Negativity" recorded at the scalp (Hillyard and Munte, 1984). Recordings in macaque V4 during a target detection tasks have shown a similar relative negativity in feedback recipient laminae (Mehta et al, 2000).…”

Section: Stimulus-locked Evoked Responses In Visual Cortexsupporting

confidence: 66%

The time course of shape discrimination in the human brain

et al. 2013

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The lateral occipital cortex (LOC) activates selectively to images of intact objects versus scrambled controls, is selective for the figure-ground relationship of a scene, and exhibits at least some degree of invariance for size and position. Because of these attributes, it is considered to be a crucial part of the object recognition pathway. Here we show that human LOC is critically involved in perceptual decisions about object shape. High-density EEG was recorded while subjects performed a threshold-level shape discrimination task on texture-defined figures segmented by either phase or orientation cues. The appearance or disappearance of a figure region from a uniform background generated robust visual evoked potentials throughout retinotopic cortex as determined by inverse modeling of the scalp voltage distribution. Contrasting responses from trials containing shape changes that were correctly detected (hits) with trials in which no change occurred (correct rejects) revealed stimulus-locked, target-selective activity in the occipital visual areas LOC and V4 preceding the subject's response. Activity that was locked to the subjects' reaction time was present in the LOC. Response-locked activity in the LOC was determined to be related to shape discrimination for several reasons: shape-selective responses were silenced when subjects viewed identical stimuli but their attention was directed away from the shapes to a demanding letter discrimination task; shape-selectivity was present across four different stimulus configurations used to define the figure; LOC responses correlated with participants' reaction times. These results indicate that decision-related activity is present in the LOC when subjects are engaged in threshold-level shape discriminations.

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Section: Stimulus-locked Evoked Responses In Visual Cortexsupporting

confidence: 66%

The time course of shape discrimination in the human brain

et al. 2013

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“…Enhanced N 1 amplitudes are observed, for example, in response to target stimuli presented at attended relative to unattended locations. P2 amplitudes have been linked to processes of visual feature (color, orientation, size) detection; increased amplitudes have been observed in response to stimuli containing target features (e.g., Hillyard & Muente, 1984;Luck & Hillyard, 1994). Effects on early components in semantic tasks have been reported before- Boddy and Weinberg (1981), for example, observed P2 enhancements associated with the detection of semantic features-though have sometimes proven difficult to replicate.…”

Section: Discussionmentioning

confidence: 99%

Meaning and modality: Influences of context, semantic memory organization, and perceptual predictability on picture processing.

Federmeier

Kutas

2001

Journal of Experimental Psychology: Learning, Memory, and Cogni

169

146

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Words (visual or auditory) and pictures are both physical objects that, through experience, have come to be associated with information not explicitly contained in the physical form of the word or picture itself. In this sense, both pictures and words can be thought of as symbols, or objects that "stand for" information that they do not directly represent. Of course, not all words have clear pictorial counterparts (e.g., function words), and in many cases it would take multiple words to convey the information in a single picture. However, pictures and words can often be used in similar ways and can lead to similar kinds of behavior. In a psychological experiment or in everyday life, for example, seeing either the written word "cat" or a picture of a cat can lead an individual to say /kat/ or to be reminded that cats meow, hate water, chase mice, and so on.A long-standing question in psychology asks how that subset of knowledge that can be conveyed by either a word or a picture is stored and processed. Two general classes of models have been put forward. Multiple semantic system models hypothesize that pictures and words are processed in distinct, specialized semantic systems (e.g., Paivio, 1971Paivio, , 1986Paivio, , 1991Shallice, 1988). In Paivio's "dual-code" model, for example, there is a "logogen" system for word processing and an "imagen" system for picture processing. These systems can communicate with one another but operate independently and have their own organization and pro-

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“…This procedure is rather dif-' No ERP evidence for the priority of spatial attention was obtained in another condition of the Hillyard & Miinte (1984) experiment where both possible stimulus locations were in close proximity. In this 'location-hard condition', ERP effects of color selection preceded the effects of spatial selectivity.…”

Section: Introductionmentioning

confidence: 99%

“…This was demonstrated in a study by Hillyard & Miinte (1984) where subjects had to attend to a conjunction of stimulus features (location and color) in order to detect infrequent target stimuli having both the attended color and location. Hillyard & Miinte (1984) compared the ERP waveforms elicited by non-targets with the relevant color, the relevant location, both relevant properties, or neither of the two relevant features. Stimuli appearing at the attended location elicited enhanced Pl, Nl and N2 components as compared to the stimuli at unattended locations.…”

Section: Introductionmentioning

confidence: 99%

“…These ERP effects of color selection were found to be larger for stimuli at the attended location than for stimuli at unattended locations. On the basis of these results, Hillyard & Miinte (1984) argued that the selective processing of color may be contingent upon the selection of stimuli on the basis of their location. Stimuli at irrelevant positions were not processed as deeply with respect to their non-spatial attributes as were stimuli at attended locations'.…”

Section: Introductionmentioning

confidence: 99%

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