First-order and second-order motion: neurological evidence for neuroanatomically distinct systems

Vaina, Lucia M.; Soloviev, Sergei

doi:10.1016/s0079-6123(03)14414-7

Cited by 48 publications

(30 citation statements)

References 61 publications

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“…On that basis, it has often been proposed that second-order motion processing relies on separate, and perhaps 'higher order' extrastriate brain areas (e.g. Baker, 1999;Vaina & Soloviev, 2004). In the context of amblyopia for example, Simmers, Ledgeway, Hess and McGraw (2003) have shown greater deficits for second-order (contrast-defined) global motion processing than for first-order (luminance-defined) global motion processing, relative to a 'normal' population.…”

Section: More Complex Types Of Global Motionmentioning

confidence: 99%

Psychophysical correlates of global motion processing in the aging visual system: A critical review

Hutchinson

Arena

Allen

et al. 2012

Neuroscience & Biobehavioral Reviews

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The consequences of visual decline in aging have a fundamental and wide-reaching impact on age-related quality of life. It is of concern therefore that evidence suggests that normal aging is accompanied by impairments in the ability to effectively encode global motion. Global motion perception is a fundamentally important process. It enables us to determine the overall velocity of spatially-extensive objects in the world and provides us with information about our own body movements. Here, we review what is currently known about the effects of age on performance for encoding the global motion information available in random dot kinematograms (RDKs), a class of stimuli widely used to probe the mechanisms underlying motion perception. We conclude that age-related deficits in global motion perception are not all encompassing. Rather, they appear to be specific to certain stimulus conditions. We also examine evidence for an interaction between age and gender and consider the efficacy of techniques such as visual perceptual learning that may attenuate some of the visual deficits in the older adult population.

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Section: More Complex Types Of Global Motionmentioning

confidence: 99%

Psychophysical correlates of global motion processing in the aging visual system: A critical review

Hutchinson

Arena

Allen

et al. 2012

Neuroscience & Biobehavioral Reviews

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“…Some other features of the c-WWI are also in line with such a proposal: It is a bistable percept that occurs sporadically, and it requires a period of viewing time before it is experienced (Andrews & Purves, 2005;Holcombe et al, 2005;Kline et al, 2004Kline et al, , 2006VanRullen, 2007). However, other features are contradictory to this adaptation view but are compatible with the proposal that it is a consequence of aliasing in at least one motion perception system due to discrete sampling: It has an optimal stimulus temporal frequency (of about 10 Hz) (VanRullen et al, 2005); it does not depend on the stimulus' spatial frequency (Purves et al, 1996;Simpson et al, 2005;VanRullen et al, 2005); it occurs for motion of both firstorder stimuli (luminance-defined) and second-order stimuli (contrast-defined) (VanRullen et al, 2005), even though these two types of stimuli may be processed by different areas of the brain (Dumoulin, Baker, Hess, & Evans, 2003;Vaina & Soloviev, 2004; although see Nishida, Sasaki, Murakami, Watanabe, & Tootell, 2003;Seiffert, Somers, Dale, & Tootell, 2003); and its strength decreases with eccentricity, whereas both the static and flicker MAEs increase with eccentricity (VanRullen, 2007), indicating that it is not solely driven by adaptation. Furthermore, the bistability of the c-WWI can be reconciled with the notion of discrete attentional sampling by proposing that adaptation leads to a competition for dominance between the veridical percept generated by the lower-level motion perception system, which is unaffected by discrete sampling, and its alias from the attention-based system where the c-WWI originates.…”

Section: Introductionmentioning

confidence: 99%

Attentional sampling of multiple wagon wheels

Macdonald

Cavanagh

VanRullen

2013

Atten Percept Psychophys

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Attending to a periodic motion stimulus can induce illusory reversals of the direction of motion. This continuous wagon wheel illusion (c-WWI) has been taken to reflect discrete sampling of motion information by visual attention. An alternative view is that it is caused by adaptation. Here, we attempt to discriminate between these two interpretations by asking participants to attend to multiple periodic motion stimuli: The discrete attentional sampling account, but not the adaptation account, predicts a decrease of c-WWI temporalfrequency tuning with set size (with a single periodic motion stimulus the c-WWI is tuned to a temporal frequency of 10 Hz). We presented one to four rotating gratings that occasionally reversed direction while participants counted reversals. We considered reversal overestimations as manifestations of the c-WWI and determined the temporal-frequency tuning of the illusion for each set size. Optimal temporal frequency decreased with increasing set size. This outcome favors the discrete attentional sampling interpretation of the c-WWI, with a sampling rate for each individual stimulus dependent on the number of stimuli attended.

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“…In this study, we have shown how the OFR may be applied to investigate disturbance of motion vision in a disorder affecting the optic nerve. Our results are preliminary and should be interpreted with caution, but we suggest that the OFR could be usefully employed to study a range of disorders of the visual system and would supplement electrophysiological and psychophysical approaches [33].…”

Section: Discussionmentioning

confidence: 87%

Contrast sensitivity, first-order motion and Initial ocular following in demyelinating optic neuropathy

et al. 2006

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The ocular following response (OFR) is a measure of motion vision elicited at ultra-short latencies by sudden movement of a large visual stimulus. We compared the OFR to vertical sinusoidal gratings (spatial frequency 0.153 cycles/ degrees or 0.458 cycles/ degrees) of each eye in a subject with evidence of left optic nerve demyelination due to multiple sclerosis (MS). The subject showed substantial differences in vision measured with stationary low-contrast Sloan letters (20/63 OD and 20/200 OS at 2.5% contrast) and the Lanthony Desaturated 15-hue color test (Color Confusion Index 1.11 OD and 2.14 OS). Compared with controls, all of the subject's OFR to increasing contrast showed a higher threshold. The OFR of each of the subject's eyes were similar for the 0.153 cycles/ degrees stimulus, and psychophysical measurements of his ability to detect these moving gratings were also similar for each eye. However, with the 0.458 cycles/ degrees stimulus, the subject's OFR was asymmetric and the affected eye showed decreased responses (smaller slope constant as estimated by the Naka-Rushton equation). These results suggest that, in this case, optic neuritis caused a selective deficit that affected parvocellular pathways mediating higher spatial frequencies, lower-contrast, and color vision, but spared the field-holding mechanism underlying the OFR to lower spatial frequencies. The OFR may provide a useful method to study motion vision in individuals with disorders affecting anterior visual pathways.

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First-order and second-order motion: neurological evidence for neuroanatomically distinct systems

Cited by 48 publications

References 61 publications

Psychophysical correlates of global motion processing in the aging visual system: A critical review

Psychophysical correlates of global motion processing in the aging visual system: A critical review

Attentional sampling of multiple wagon wheels

Contrast sensitivity, first-order motion and Initial ocular following in demyelinating optic neuropathy

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