Tilt aftereffect with small adapting angles

Skottun, Bernt Chr; Johnsen, Tore; Magnussen, Svein

doi:10.3758/bf03204479

Cited by 3 publications

(4 citation statements)

References 7 publications

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“…In the case of the TAE, prolonged viewing of an Badapting[ line or grating causes a shift in the perceived orientation of a subsequently viewed Btest[ line/grating. A maximal repulsive effect is seen for adapt and test stimuli differing in orientation by 10Y20 deg, using either gratings (Poom, 2000;van der Zwan & Wenderoth, 1995) or lines (Blakemore, Carpenter, & Georgeson, 1970;Carpenter & Blakemore, 1973;Paradiso et al, 1989;Skottun, Johnsen, & Magnussen, 1981). A less prolonged misperception of test angle can also be seen even with very short Badaptation[ presentations (e.g., Harris & Calvert, 1989).…”

Section: Introductionmentioning

confidence: 97%

Tilt aftereffect for texture edges is larger than in matched subjective edges, but both are strong adaptors of luminance edges

Hawley

Keeble

2006

Journal of Vision

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The tilt aftereffect (TAE) has been used previously to probe whether contours defined by different attributes are subserved by the same or by different underlying mechanisms. Here, we compare two types of contours between texture surfaces, one with texture orientation contrast across the edge (orientation contrast contour; OC) and one without, commonly referred to as a subjective contour (SC). Both contour types produced curves of TAE versus adapting angle displaying typical positive and negative peaks at approximately 15 and 70 deg, respectively. The curves are well fit by difference of Gaussian (DoG) functions, with one Gaussian accounting for the contour adaptation effect and the other accounting for the texture orientation adaptation effect. Adaptation to OC elicited larger TAEs than did adaptation to SC, suggesting that they more effectively activate orientation-selective neurons in V1/V2 during prolonged viewing. Surprisingly, both contour types adapted a luminance contour (LC) as strongly as did an LC itself, suggesting that the second-order orientation cue contained in the texture edge activates the same set of orientation-selective neurons as does an LC. These findings have implications for the mechanisms by which the orientations of texture edges and SCs are encoded.

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Section: Introductionmentioning

confidence: 97%

Tilt aftereffect for texture edges is larger than in matched subjective edges, but both are strong adaptors of luminance edges

Hawley

Keeble

2006

Journal of Vision

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“…In a typical orientation adaptation paradigm, a prolonged exposure (adaptation) to an oriented visual stimulus causes a subsequent stimulus (test pattern) to appear rotated away from the adapting orientation. This phenomenon is known as tilt aftereffect (TAE) 1 2 3 4 5 6 7 8 9 . The direction and the magnitude of the orientation shift in the TAE depend on the relative orientation between the adapting and test stimuli 3 .…”

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confidence: 99%

“…Orientation differences between 0° and 50° lead observers to perceive the test pattern as oriented opposite to that of the adapting pattern. This is called the direct TAE or repulsion effect 10 and peaks at an adapting-test orientation difference between 10° and 20° with a magnitude of ~4 deg 1 2 3 4 5 6 7 8 9 . On the other hand, if the relative orientation between adapter and test stimuli is larger than 50°, the test stimulus appears tilted towards the adapting orientation.…”

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confidence: 99%

“…To date TAEs have been reported using a variety of visual stimuli including oriented gratings 5 9 , single lines 1 8 15 , oriented stimuli defined by subjective contours 16 17 , texture edges defined by orientation contrast 16 , bilateral symmetrical patterns 18 and orientation signals defined by fast moving dots (i.e., motion streaks 19 ). Taken together these studies suggest that, depending on the adapting stimulus, the TAE may rely either on the striate cortex (V1) or on extrastriate areas (e.g., on V2 or higher extrastriate areas).…”

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confidence: 99%

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Tilt aftereffect following adaptation to translational Glass patterns

Pavan

Hocketstaller

Contillo

et al. 2016

Sci Rep

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Glass patterns (GPs) consist of randomly distributed dot pairs (dipoles) whose orientations are determined by specific geometric transforms. We assessed whether adaptation to stationary oriented translational GPs suppresses the activity of orientation selective detectors producing a tilt aftereffect (TAE). The results showed that adaptation to GPs produces a TAE similar to that reported in previous studies, though reduced in amplitude. This suggests the involvement of orientation selective mechanisms. We also measured the interocular transfer (IOT) of the GP-induced TAE and found an almost complete IOT, indicating the involvement of orientation selective and binocularly driven units. In additional experiments, we assessed the role of attention in TAE from GPs. The results showed that distraction during adaptation similarly modulates the TAE after adapting to both GPs and gratings. Moreover, in the case of GPs, distraction is likely to interfere with the adaptation process rather than with the spatial summation of local dipoles. We conclude that TAE from GPs possibly relies on visual processing levels in which the global orientation of GPs has been encoded by neurons that are mostly binocularly driven, orientation selective and whose adaptation-related neural activity is strongly modulated by attention.

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Visual field differences in the magnitude of the tilt after-effect

Grabowska

1987

Neuropsychologia

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Tilt aftereffect with small adapting angles

Cited by 3 publications

References 7 publications

Tilt aftereffect for texture edges is larger than in matched subjective edges, but both are strong adaptors of luminance edges

Tilt aftereffect for texture edges is larger than in matched subjective edges, but both are strong adaptors of luminance edges

Tilt aftereffect following adaptation to translational Glass patterns

Visual field differences in the magnitude of the tilt after-effect

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