Revisiting the functional significance of binocular cues for perceiving motion-in-depth

Kohler, Peter J.; Meredith, W.J.; Norcia, Anthony M.

doi:10.1038/s41467-018-05918-7

Cited by 11 publications

(6 citation statements)

References 70 publications

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“…S1 , Supplementary Materials ). The smallest neural threshold we measure sits within this range at 0.29 arcmin, suggesting that our measurements at 1F1 can be used as a proxy for behavioural thresholds ( Kohler et al, 2018 ; Norcia and Tyler, 1985 ). Given these results, SSVEP threshold estimation provides a means for linking behavioural phenomena with neural dynamics.…”

Section: Discussionmentioning

confidence: 59%

Dynamics of absolute and relative disparity processing in human visual cortex

et al. 2022

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Section: Discussionmentioning

confidence: 59%

Dynamics of absolute and relative disparity processing in human visual cortex

et al. 2022

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“…However, recent models of binocular motion perception in the MT suggest that V1 inputs should exhibit motion opponent suppression, and that these signals arise before binocular integration in V1 (54). A general, interocular suppressive mechanism may precede the extraction of MID (55), while monocular motion opponency has also been proposed to drive pattern motion cells in the MT (56, 57). There has also been some electrophysiological evidence for motion opponent suppression in V1, although these signals were weak, and it is unclear whether their source was monocular or binocular (58).…”

Section: Discussionmentioning

confidence: 99%

Asymmetries between achromatic and chromatic extraction of 3D motion signals

Kaestner

Maloney

Wailes-Newson

et al. 2019

Proc. Natl. Acad. Sci. U.S.A.

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Motion in depth (MID) can be cued by high-resolution changes in binocular disparity over time (CD), and low-resolution interocular velocity differences (IOVD). Computational differences between these two mechanisms suggest that they may be implemented in visual pathways with different spatial and temporal resolutions. Here, we used fMRI to examine how achromatic and S-cone signals contribute to human MID perception. Both CD and IOVD stimuli evoked responses in a widespread network that included early visual areas, parts of the dorsal and ventral streams, and motion-selective area hMT+. Crucially, however, we measured an interaction between MID type and chromaticity. fMRI CD responses were largely driven by achromatic stimuli, but IOVD responses were better driven by isoluminant S-cone inputs. In our psychophysical experiments, when S-cone and achromatic stimuli were matched for perceived contrast, participants were equally sensitive to the MID in achromatic and S-cone IOVD stimuli. In comparison, they were relatively insensitive to S-cone CD. These findings provide evidence that MID mechanisms asymmetrically draw on information in precortical pathways. An early opponent motion signal optimally conveyed by the S-cone pathway may provide a substantial contribution to the IOVD mechanism.

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“…This method has advantages over traditional event-related potential analysis as it uses a data-driven approach to identify topographic regions of interest using the whole electrode array while increasing the signal-to-noise ratio as each component represents a weighted average of electrodes. This technique has previously been used to investigate evoked responses to fine motion stimuli in adults (Dmochowski and Norcia, 2015) and to compare steady-state motion responses in infants and adults (Kohler et al, 2018).…”

Section: Methodsmentioning

confidence: 99%