منابع مشابه
Evidence for boundary-specific grouping
A prerequisite for higher-level visual tasks such as object recognition is a segmentation of the image into distinct two-dimensional regions. While it has long been assumed that the human visual system jointly exploits region and boundary cues for image segmentation, we report the results of psychophysical experiments which suggest that the visual system relies on geometric properties of boundi...
متن کاملEvidence for Boundary - Speci c Grouping
A prerequisite for higher-level visual tasks such as object recognition is a segmenta-tion of the image into distinct two-dimensional regions. While it has long been assumed that the human visual system jointly exploits region and boundary cues for image seg-mentation, we report the results of psychophysical experiments which suggest that the visual system relies on geometric properties of boun...
متن کاملVisual Grouping and Prosodic Grouping: Effects of Spatial Information on Prosodic Boundary Strength
We report two psycholinguistic experiments investigating whether grouping information presented in the visuo-spatial modality influences language production – in particular, whether different visual groupings influence the prosodic groupings that speakers produce. We used a picturedescription task where three objects were grouped in different ways, and investigated whether spoken descriptions o...
متن کاملGrouping in pitch perception: evidence for sequential constraints.
Evidence is presented that sequential auditory grouping constraints apply to the perception of pitch. Experiment 1 shows that the pitch changes produced by mistuning the fourth harmonic of a 90-ms 12-harmonic 155-Hz fundamental complex tone are substantially reduced when the complex is preceded by four 90-ms tones at the same frequency as the mistuned component. Both the pitch changes and their...
متن کاملCortical mechanisms for afterimage formation: evidence from interocular grouping
Whether the retinal process alone or retinal and cortical processes jointly determine afterimage (AI) formation has long been debated. Based on the retinal rebound responses, recent work proposes that afterimage signals are exclusively generated in the retina, although later modified by cortical mechanisms. We tested this notion with the method of "indirect proof". Each eye was presented with a...
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ژورنال
عنوان ژورنال: Vision Research
سال: 1998
ISSN: 0042-6989
DOI: 10.1016/s0042-6989(97)00138-7