Representational momentum reveals visual anticipation differences in the upper and lower visual fields

Gottwald, Vicky; Lawrence, Gavin P.; Hayes, Amy E.; Khan, Michael A.

doi:10.1007/s00221-015-4294-9

Cited by 3 publications

(5 citation statements)

References 47 publications

(9 reference statements)

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“…Our results show substantial differences in early visual cortex responses to high-contrast bar arrays of different densities between the upper and lower visual hemifields. In accordance with previous behavioral (Gottwald et al, 2015;Intriligator & Cavanagh, 2001), anatomic (Dougherty et al, 2003;Henriksson et al, 2012), and functional (Liu et al, 2006;Portin et al, 1999) evidence, we observed higher C1 amplitudes in response to LVF stimulation globally. However, this global difference was gradually reduced as stimulus density increased and was not significant for stimuli of the highest density tested.…”

Section: Discussionsupporting

confidence: 92%

Anatomic and functional asymmetries interactively shape human early visual cortex responses

2020

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Early visual processing is surprisingly flexible even in the adult brain. This flexibility involves both long-term structural plasticity and online adaptations conveyed by top-down feedback. Although this view is supported by rich evidence from both human behavioral studies and invasive electrophysiology in nonhuman models, it has proven difficult to close the gap between species. In particular, it remains debated whether noninvasive measures of neural activity can capture top-down modulations of the earliest stages of processing in the human visual cortex. We previously reported modulations of retinotopic C1, the earliest component of the human visual evoked potential. However, these effects were selectively observed in the upper visual field (UVF). Here we test whether this asymmetry is linked to an interaction between differences in spatial resolution across the visual field and the specific stimuli used in previous studies. We measured visual evoked potentials in response to task-irrelevant, high-contrast textures of different densities in a comparatively large sample of healthy volunteers (N = 31) using high-density electroencephalogram. Our results show differential response profiles for upper and lower hemifields, with UVF responses saturating at higher stimulus densities. In contrast, lower visual field responses did not increase, and even showed a tendency toward a decrease at the highest density tested. We propose that these findings reflect feature-and task-specific pooling of signals from retinotopic regions with different sensitivity profiles. Such complex interactions between anatomic and functional asymmetries need to be considered to resolve whether human early visual cortex activity is modulated by top-down factors.

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Section: Discussionsupporting

confidence: 92%

Anatomic and functional asymmetries interactively shape human early visual cortex responses

2020

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“…That is, experts showed anticipatory tendencies only when the pass was congruent (directed toward the receiver) and made in the right to left direction. While this finding may be a spurious result, past research has identified similar leftward bias direction effects within RM (Hubbard and Ruppel, 1999; Ossandon et al, 2014) with effects attributed to a bias in the visuo-spatial hemisphere (Gottwald et al, 2015) and the landmark attraction effect (Hubbard and Ruppel, 1999). This landmark attraction effect discerns the salience of a physical landmark in the visual field when processing the motion of a stimulus (Bryant and Subbiah, 1994).…”

Section: Discussionmentioning

confidence: 67%

“…This landmark attraction effect discerns the salience of a physical landmark in the visual field when processing the motion of a stimulus (Bryant and Subbiah, 1994). In the present study, it is possible given the proposed bias in the visuo-spatial hemisphere (Gottwald et al, 2015) that the receiving player (i.e., the landmark) was more “noticeable” in the left compared to right visual hemisphere resulting in an increase in the anticipation of the pass when the receiver was positioned in the left visual field (as explained by TEC). This landmark attraction effect did not appear to be present in novices, who were seemingly uninfluenced by the position of the receiving player.…”

Section: Discussionmentioning

confidence: 83%

“…The RM effect has received widespread empirical support across a range of experimental stimuli, such as apparent motion in static images (Senior et al, 2000), smooth continuous vertical and horizontal motion (Hubbard and Bharucha, 1988; Gottwald et al, 2015), biological motion (Verfaillie and Daems, 2002; Wilson et al, 2010), and motion-induced real-world scenes from the first-person view (Thornton and Hayes, 2004; Blättler et al, 2010, 2011). Of particular interest to the current study is the modulating role that sporting expertise plays in the underlying memory distortions associated with the RM effect.…”

Section: Introductionmentioning

confidence: 99%

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Representational Momentum in the Expertise Context: Support for the Theory of Event Coding as an Explanation for Action Anticipation

2019

Self Cite

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This study aimed to extend the notion of the theory of event coding as an explanation of action anticipation in expert sport performers. This was achieved by investigating the degree with which automatic anticipation depends on the ecological congruency between the perceived action and its distal effect. In a novel approach, the representational momentum paradigm was adopted to address this notion. Expert ( N = 16) and novice ( N = 20) rugby players observed a dynamic video of a short pass that was displayed as either toward or away from a receiver. Following an occlusion interval, participants were required to judge whether the video resumed at the same place, further forward or further backward than its original stopping place. Experts demonstrated stronger anticipatory tendencies when the action was directed toward the receiver. This relationship was modulated by a leftward directional bias that is discussed in the context of a bias in viewing behavior that is underpinned by attention. Novice anticipatory tendencies were independent of context. These findings show support for the extension of the theory of event coding.

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“…The final experiment in this study was motivated by subjective reports by some of our observers suggesting that their judgments had been most influenced by movements in the lower visual field. Previous studies have reported an advantage for the lower visual field in terms of actions in near space such as arm movements (Danckert & Goodale, 2001;Khan & Lawrence, 2005) and visual anticipation of trajectory paths (representational momentum task; Gottwald, Lawrence, Hayes, & Khan, 2015). Since the stimuli in Experiments 1 and 2 were always centered at fixation and always moved clockwise into the lower field first, one explanation of the observers' impression of a lower field advantage is that this is a primacy effect; however, it seemed worthwhile to investigate this further, asking whether any threshold differences would be revealed if the trajectory stimuli were confined to the upper or lower visual fields.…”

Section: Experiments 3: Upper and Lower Visual Fieldsmentioning

confidence: 99%

Detection of periodic motion trajectories: Effects of frequency and radius

Wilkinson

Haque

et al. 2016

Journal of Vision

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Periodic trajectories are an important component of biological motion. Or, Thabet, Wilkinson, and Wilson (2011) studied radial frequency (RF) motion trajectory detection and concluded that, for RF2-5 trajectories, the threshold function paralleled that of static RF patterns. We have extended Or et al.'s (2011) findings to a broader range of RFs (three to 24 cycles) and across a 4-fold range of radii (1°-4°). We report that (a) thresholds for RF trajectories decrease as a power function of RF for low RF trajectories (three to six cycles) before approaching an asymptote at high RFs (12-24 cycles); (b) detection thresholds for RF trajectories scale proportionally with radius; and (c) there is no lower versus upper field advantage in the parafoveal field for stimuli displaced from fixation on the vertical midline. The results are compared to earlier findings for static RF thresholds, and we argue that our findings support the existence of parallel spatial and temporal processing channels that may contribute to both action perception and production.

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Representational momentum reveals visual anticipation differences in the upper and lower visual fields

Cited by 3 publications

References 47 publications

Anatomic and functional asymmetries interactively shape human early visual cortex responses

Anatomic and functional asymmetries interactively shape human early visual cortex responses

Representational Momentum in the Expertise Context: Support for the Theory of Event Coding as an Explanation for Action Anticipation

Detection of periodic motion trajectories: Effects of frequency and radius

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