How handedness influences perceptual and attentional processes during rapid serial visual presentation

Śmigasiewicz, Kamila; Liebrand, Matthias; Landmesser, Johannes; Verleger, Rolf

doi:10.1016/j.neuropsychologia.2017.04.030

Cited by 12 publications

(6 citation statements)

References 73 publications

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“…The structural differences of handedness in the MT area have also been found in previous studies (Hervé et al, 2006;Steinmetz et al, 2010). In the behavioral study of visual information processing, similar difference between RH and LH/MH (Le Bigot and Grosjean, 2012;Frässle et al, 2016;Smigasiewicz et al, 2017) was also reported. This suggests that the homotopic alterations, as reported in this study, maybe a result of behavioral plasticity.…”

Section: Discussionsupporting

confidence: 81%

Voxel-Wise Analysis of Structural and Functional MRI for Lateralization of Handedness in College Students

Wang

Zhou

Guo

et al. 2021

Front. Hum. Neurosci.

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The brain structural and functional basis of lateralization in handedness is largely unclear. This study aimed to explore this issue by using voxel-mirrored homotopic connectivity (VMHC) measured by resting-state functional MRI (R-fMRI) and gray matter asymmetry index (AI) by high-resolution anatomical images. A total of 50 healthy subjects were included, among them were 13 left-handers, 24 right-handers, and 13 mixed-handers. Structural and R-fMRI data of all subjects were collected. There were significant differences in VMHC among the three groups in lateral temporal-occipital, orbitofrontal, and primary hand motor regions. Meanwhile, there were significant differences in AI that existed in medial prefrontal, superior frontal, and superior temporal regions. Besides, the correlation analysis showed that the closer the handedness score to the extreme of the left-handedness (LH), the stronger the interhemispheric functional connectivity, as well as more leftward gray matter. In general, left/mixed-handedness (MH) showed stronger functional homotopy in the transmodal association regions that depend on the integrity of the corpus callosum, but more variable in primary sensorimotor cortices. Furthermore, the group differences in VMHC largely align with that in AI. We located the specific regions for LH/MH from the perspective of structural specification and functional integration, suggesting the plasticity of hand movement and different patterns of emotional processing.

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Section: Discussionsupporting

confidence: 81%

Voxel-Wise Analysis of Structural and Functional MRI for Lateralization of Handedness in College Students

Wang

Zhou

Guo

et al. 2021

Front. Hum. Neurosci.

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“…Either as a main effect or interacting with T2 side or lag, the effect was obtained in Exp.1 of [14], in Taiwanese and Israelis in [38], and in [39][40][41], with a total of 163 participants. The effect was not obtained in some other studies of ours using this task ( [25,[42][43][44][45]) with a total of 123 participants. Similarly, an advantage for identification of T1 followed by T2 on the same side has been found several times, either as a main effect or interacting with T1 side or lag [12,15,40,46], with a total of 73 participants.…”

Section: No-lure Trialscontrasting

confidence: 60%

Get Set or Get Distracted? Disentangling Content-Priming and Attention-Catching Effects of Background Lure Stimuli on Identifying Targets in Two Simultaneously Presented Series

et al. 2019

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In order to study the changing relevance of stimulus features in time and space, we used a task with rapid serial presentation of two stimulus streams where two targets (“T1” and “T2”) had to be distinguished from background stimuli and where the difficult T2 distinction was impeded by background stimuli presented before T1 that resemble T2 (“lures”). Such lures might actually have dual characteristics: Their capturing attention might interfere with target identification, whereas their similarity to T2 might result in positive priming. To test this idea here, T2 was a blue digit among black letters, and lures resembled T2 either by alphanumeric category (black digits) or by salience (blue letters). Same-category lures were expected to prime T2 identification whereas salient lures would impede T2 identification. Results confirmed these predictions, yet the precise pattern of results did not fit our conceptual framework. To account for this pattern, we speculate that lures serve to confuse participants about the order of events, and the major factor distinguishing color lures and digit lures is their confusability with T2. Mechanisms of effects were additionally explored by measuring event-related EEG potentials. Consistent with the assumption that they attract more attention, color lures evoked larger N2pc than digit lures and affected the ensuing T1-evoked N2pc. T2-evoked N2pc was indistinguishably reduced by all kinds of preceding lures, though. Lure-evoked mesio-frontal negativity increased from first to third lures both with digit and color lures and, thereby, might have reflected expectancy for T1.

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“…However, the LH VEP lag has been found to be largely independent of that advantage: First, the measures did not correlate with each other in a relatively large sample of 55 participants (the largest correlation of several VEP measures with asymmetry of T2 identification amounted to r = 0.05 only, Asanowicz et al, 2017). Second, shifting attention to the right or left side reduced VEP latencies equally on either side, thus did not interact with the LH VEP lag (Asanowicz et al, 2017; Śmigasiewicz et al, 2017a), in contrast to the marked interaction of attention with the LVF advantage of T2 identification (Śmigasiewicz et al, 2015, 2017a,b). Third, the LVF advantage of target identification was virtually identical in right-handers and left-handers whereas the LH VEP lag was strikingly absent in left-handers (Śmigasiewicz et al, 2017c).…”

Section: Introductionmentioning

confidence: 84%

“…As a methodological point, it might be suspected that, although rather distant from each other, LH and RH VEP recording sites (PO7 and PO8) are still subject to mutual volume conduction across the scalp which might obscure any time lags between the measured potentials. As in our recent work (Śmigasiewicz et al, 2017a,b) we used Laplacian transformation that redefines potentials as current source densities, by calculating the difference of any potential from the potentials measured at the surrounding recording sites. With this transformation it is unlikely that signals recorded at one hemisphere are contaminated by electrical conduction from the other hemisphere (Kayser and Tenke, 2015; Vidal et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Left-Hemisphere Delay of EEG Potentials Evoked by Standard Letter Stimuli During Rapid Serial Visual Presentation: Indicating Right-Hemisphere Advantage or Left-Hemisphere Load?

2019

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During rapid serial visual presentation (RSVP), two streams of letters simultaneously presented in the left and right visual fields (LVF and RVF) evoke visual potentials (VEPs) of EEG a few milliseconds earlier at the right (RH) than the left hemisphere (LH). This small LH VEP lag might be attributed to a RH advantage in initial processing of rapidly changing stimuli or to larger load of the LH by its specialized processing of letters from both visual fields simultaneously. In the present study, the two-stream condition was compared in two experiments to conditions with smaller instantaneous verbal load, namely with stimuli presented either solely or slightly earlier in the LVF or RVF. The RH advantage hypothesis predicts a LH VEP lag very similar to the standard two-stream condition when comparing between LH and RH VEPs contralateral to the single or earlier stream. The LH load hypothesis predicts shorter VEP latencies at the LH in the one-stream and earlier-stream than in the two-stream condition, resulting in an absent LH lag in those conditions. Results tended to be more in line with these latter predictions suggesting that in RSVP the LH might be more involved in partial processing of letters in search for target features. However, since the RH advantage hypothesis could not be reliably rejected these results might indicate a complex interplay between both hemispheres. This interplay would exploit the abilities of either hemisphere during the demanding processing of rapidly presented letters, both the LH advantage in letter processing and the RH advantage in visual perception at initial stages.

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How handedness influences perceptual and attentional processes during rapid serial visual presentation

Cited by 12 publications

References 73 publications

Voxel-Wise Analysis of Structural and Functional MRI for Lateralization of Handedness in College Students

Voxel-Wise Analysis of Structural and Functional MRI for Lateralization of Handedness in College Students

Get Set or Get Distracted? Disentangling Content-Priming and Attention-Catching Effects of Background Lure Stimuli on Identifying Targets in Two Simultaneously Presented Series

Left-Hemisphere Delay of EEG Potentials Evoked by Standard Letter Stimuli During Rapid Serial Visual Presentation: Indicating Right-Hemisphere Advantage or Left-Hemisphere Load?

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