Relative performance of the two hands in simple and choice reaction time tasks

Nisiyama, M.; Ribeiro-do-Valle, L.E.

doi:10.1590/1414-431x20132932

Cited by 14 publications

(7 citation statements)

References 39 publications

(65 reference statements)

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“…A strong tendency towards a faster response with the right (compared with the left) hand was also found. Previous evidence has shown that simple RTs are not often affected by the hand dominance [89]. This result is also consistent with the hypothesis of left-hemispheric dominance for action selection [90,91].…”

Section: Discussionsupporting

confidence: 90%

Left-Hemispheric Asymmetry for Object-Based Attention: an ERP Study

Orlandi

Proverbio

2019

Brain Sciences

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It has been shown that selective attention enhances the activity in visual regions associated with stimulus processing. The left hemisphere seems to have a prominent role when non-spatial attention is directed towards specific stimulus features (e.g., color, spatial frequency). The present electrophysiological study investigated the time course and neural correlates of object-based attention, under the assumption of left-hemispheric asymmetry. Twenty-nine right-handed participants were presented with 3D graphic images representing the shapes of different object categories (wooden dummies, chairs, structures of cubes) which lacked detail. They were instructed to press a button in response to a target stimulus indicated at the beginning of each run. The perception of non-target stimuli elicited a larger anterior N2 component, which was likely associated with motor inhibition. Conversely, target selection resulted in an enhanced selection negativity (SN) response lateralized over the left occipito-temporal regions, followed by a larger centro-parietal P300 response. These potentials were interpreted as indexing attentional selection and categorization processes, respectively. The standardized weighted low-resolution electromagnetic tomography (swLORETA) source reconstruction showed the engagement of a fronto-temporo-limbic network underlying object-based visual attention. Overall, the SN scalp distribution and relative neural generators hinted at a left-hemispheric advantage for non-spatial object-based visual attention.

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Section: Discussionsupporting

confidence: 90%

Left-Hemispheric Asymmetry for Object-Based Attention: an ERP Study

Orlandi

Proverbio

2019

Brain Sciences

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“…First, we found a faster left-hand response in the right-handed participants, whereas a bulk of literature suggests the faster right-hand response (see Ref. 4 for the literature review). Second, motor preparation would affect RT regardless of the stimulus ambiguity.…”

Section: Discussionmentioning

confidence: 69%

“…Thus, subjects demonstrate LH dominance when processing words, whereas face processing induces RH dominance 3 . The motor functions are contralateral, defining better performance of the right hand than the left hand 4 . Finally, the attentional system exhibits hemispheric lateralization.…”

Section: Introductionmentioning

confidence: 99%

Attentional Bias for the Left Visual Field in Ambiguous Necker Cube Processing

Maksimenko

Kuc

Badarin

et al. 2021

Preprint

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There is a view that people better react to the stimuli presented in their left visual field (LVF) due to the right lateralization of the ventral attentional network (VAN). Previous studies used color-deviant stimuli and reported LVF bias for a bottom-up attentional component. Here we examined this effect for ambiguous stimuli, Necker cubes whose processing requires bottom-up and top-down attention. We instructed subjects to report cube’s orientation, left or right, while manipulated their ambiguity. In line with other works, we suggested that ambiguity enhanced reliance on the top-down mechanisms. For low ambiguity, subjects responded faster to the left-oriented cubes. EEG power increased in the right temporoparietal junction (TPJ) for 0.3 s post-stimulus onset. For high ambiguity, we found no difference in response time and EEG power. These results may evidence VAN activation when processing the bottom-up stimulus features. The eye-tracking confirmed that subjects focused on the center of the stimulus. We hypothesized that they used peripheral vision to acquire sensory information. Therefore, the LVF attentional bias might influence the evidence accumulation process. Our results support the bottom-up attentional bias to the left visual field and provide evidence for the vital role of right TPJ in controlling bottom-up attention.

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“…3A). Additionally, there is a large amount of contradictory evidence that shows that the dominant right hand is superior to the left hand when considering reaction times (Barthelemy & Boulinguez, 2001;Mieschke, Elliott, Helsen, Carson, & Coull, 2001;Nisiyama & Ribeiro-do-Valle, 2014). Another potential explanation for this discrepancy is that use of the left hand to input responses by our right-handed participants may have resulted in a distraction or disruption in sensorimotor integration and left-right discrimination that was specific to images of left hands.…”

Section: Discussionmentioning

confidence: 93%