Size averaging of irrelevant stimuli cannot be prevented

Oriet, Chris; Brand, John

doi:10.1016/j.visres.2012.12.004

Cited by 71 publications

(88 citation statements)

References 33 publications

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“…This fits with data suggesting that during the process of ensemble perception the visual system parses arrays of individual objects into groups, suggesting that the group as a whole is a target for property-attribution (e.g. Oriet and Brand 2013). Although one might worry that an ensemble isn't best described as an object, we should remember that in this context talk of 'objects' is rather loose.…”

Section: Epistemic Justification and The Perception Of Ensemble Propesupporting

confidence: 80%

Ensemble representation and the contents of visual experience

Bayne

McClelland

2018

Philos Stud

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The on-going debate over the 'admissible contents of perceptual experience' concerns the range of properties that human beings are directly acquainted with in perceptual experience. Regarding vision, it is relatively uncontroversial that the following properties can figure in the contents of visual experience: colour, shape, illumination, spatial relations, motion, and texture. The controversy begins when we ask whether any properties besides these figure in visual experience. We argue that 'ensemble properties' should be added to the list of visually admissible properties. Ensemble properties are features that belong to a set of perceptible objects as a whole as opposed to the individuals that constitute that set. They include such features as the mean size of an array of shapes or the average emotional expression of an array of faces. Recent work in vision science has yielded compelling evidence that the visual system routinely encodes such properties. We argue that epistemological considerations provide strong reasons to think that these properties figure in visual experience. Judgements about ensemble properties are immediately warranted by our perceptual experience, and the only plausible way that a perceptual experience could confer this warrant is if it confers awareness of ensemble properties.Tim Bayne and Tom McClelland have contributed equally to this paper, and the order of authors has been determined alphabetically.

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Section: Epistemic Justification and The Perception Of Ensemble Propesupporting

confidence: 80%

Ensemble representation and the contents of visual experience

Bayne

McClelland

2018

Philos Stud

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“…Our understanding of color categories and their effect on cognition may also be improved from investigating this issue. Since ensemble perception is now understood to operate under distributed attention [3], in the absence of serial processing [17], and compulsorily [34,35], if linguistic color categories have an effect on the encoding of a briefly presented colorful ensemble, it will provide further evidence for the depth of the effect of color categories on the perceptual or cognitive representation of color [24,26,27,29,[36][37][38][39][40][41][42][43].…”

Section: Categories and Ensemble Perceptionmentioning

confidence: 99%

Getting the gist of multiple hues: metric and categorical effects on ensemble perception of hue

2014

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This study investigated the perception of colorful ensembles and the effect of categories and perceptual similarity on their representation. We briefly presented ensembles of two hues and tested hue recognition with a range of seen and unseen hues. The average hue was familiar, even though it never appeared in the ensembles. Increasing the perceptual difference of ensemble hues inhibited this mean bias, and the categorical relationship of hues also affected the distribution of familiarity. The findings suggest there is an ensemble perception of hue, but this is affected by the categorical and metric relationships of the elements in the ensemble.

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“…This seemingly fundamental process of perceptual averaging is pervasive in visual perception across task demands (e.g., Corbett et al, 2012; Oriet and Brand, 2013), focused attentional constraints (e.g., Chong and Treisman, 2005), and spatial reference frames (Corbett and Melcher, 2014a), and does not rely on precise representations of individual objects (e.g., Parkes et al, 2001; Choo and Franconeri, 2010; Corbett and Oriet, 2011). Average representations of size (Corbett et al, 2012), motion direction (e.g., Anstis et al, 1998), orientation (e.g., Gibson and Radner, 1937), texture density (e.g., Durgin, 1995), and numerosity (Burr and Ross, 2008) also undergo perceptual adaptation, a process by which the extended presentation of a stimulus biases the perception of subsequently presented stimuli in opposite directions along fundamental dimensions of the adapting stimulus.…”

Section: Introductionmentioning

confidence: 99%

Perceptual Averaging in Individuals with Autism Spectrum Disorder

2016

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There is mounting evidence that observers rely on statistical summaries of visual information to maintain stable and coherent perception. Sensitivity to the mean (or other prototypical value) of a visual feature (e.g., mean size) appears to be a pervasive process in human visual perception. Previous studies in individuals diagnosed with Autism Spectrum Disorder (ASD) have uncovered characteristic patterns of visual processing that suggest they may rely more on enhanced local representations of individual objects instead of computing such perceptual averages. To further explore the fundamental nature of abstract statistical representation in visual perception, we investigated perceptual averaging of mean size in a group of 12 high-functioning individuals diagnosed with ASD using simplified versions of two identification and adaptation tasks that elicited characteristic perceptual averaging effects in a control group of neurotypical participants. In Experiment 1, participants performed with above chance accuracy in recalling the mean size of a set of circles (mean task) despite poor accuracy in recalling individual circle sizes (member task). In Experiment 2, their judgments of single circle size were biased by mean size adaptation. Overall, these results suggest that individuals with ASD perceptually average information about sets of objects in the surrounding environment. Our results underscore the fundamental nature of perceptual averaging in vision, and further our understanding of how autistic individuals make sense of the external environment.

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Size averaging of irrelevant stimuli cannot be prevented

Cited by 71 publications

References 33 publications

Ensemble representation and the contents of visual experience

Ensemble representation and the contents of visual experience

Getting the gist of multiple hues: metric and categorical effects on ensemble perception of hue

Perceptual Averaging in Individuals with Autism Spectrum Disorder

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