Reaction time differences between left- and right-handers during mental rotation of hand pictures

Takeda, Kotaro; Shimoda, Nobuaki; Satō, Yutaka; Ogano, Misao; Kato, Hiroyuki

doi:10.1080/13576500902938105

Cited by 34 publications

(30 citation statements)

References 27 publications

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“…On the opposite, the bimanual version of the experiment showed that RH responded faster for right hands than for left hands, while no difference was observed in LH. This last results is in agreement with a previous studies that also used a bimanual response (Gentilucci et al, 1998b; Takeda et al, 2010). However, responding with both hands confounds the advantage to respond with the dominant hand and the effect of familiarity of this dominant hand.…”

Section: Discussionsupporting

confidence: 93%

“…The present work reported shorter RT for left hands, as opposed to some previous studies that reported an advantage in right hand recognition (Gentilucci et al, 1998b; Ionta and Blanke, 2009; Takeda et al, 2010; Ní Choisdealbha et al, 2011). A previous work has however reported that RT for left hands were shorter when participants responded with the right hand (Cocksworth and Punt, 2013).…”

Section: Discussioncontrasting

confidence: 90%

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Cortical Asymmetries during Hand Laterality Task Vary with Hand Laterality: A fMRI Study in 295 Participants

Mellet

Mazoyer

Leroux

et al. 2016

Front. Hum. Neurosci.

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The aim of this study was to characterize, using fMRI, the functional asymmetries of hand laterality task (HLT) in a sample of 295 participants balanced for handedness. During HLT, participants have to decide whether the displayed picture of a hand represent a right or a left hand. Pictures of hands’ back view were presented for 150 ms in the right or left hemifield. At the whole hemisphere level, we evidenced that the laterality of the hand and of the hemifield in which the picture was displayed combined their effects on the hemispheric asymmetry in an additive way. We then identified a set of 17 functional homotopic regions of interest (hROIs) including premotor, motor, somatosensory and parietal regions, whose activity and asymmetry varied with the laterality of the presented hands. When the laterality of a right hand had to be evaluated, these areas showed stronger leftward asymmetry, the hROI located in the primary motor area showing a significant larger effect than all other hROIs. In addition a subset of six parietal regions involved in visuo-motor integration together with two postcentral areas showed a variation in asymmetry with hemifield of presentation. Finally, while handedness had no effect at the hemispheric level, two regions located in the parietal operculum and intraparietal sulcus exhibited larger leftward asymmetry with right handedness independently of the hand of presentation. The present results extend those of previous works in showing a shift of asymmetries during HLT according to the hand presented in sensorimotor areas including primary motor cortex. This shift was not affected by manual preference. They also demonstrate that the coordination of visual information and handedness identification of hands relied on the coexistence of contralateral motor and visual representations in the superior parietal lobe and the postcentral gyrus.

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Section: Discussionsupporting

confidence: 93%

Section: Discussioncontrasting

confidence: 90%

Cortical Asymmetries during Hand Laterality Task Vary with Hand Laterality: A fMRI Study in 295 Participants

Mellet

Mazoyer

Leroux

et al. 2016

Front. Hum. Neurosci.

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“…A person with motor deficit needs to be able to operate a rehabilitative BCI. To allow the possibility of a person with motor deficit to take part in HLT and also to avoid the influence of any other motor action of the upper limbs, we asked participants to provide verbal responses instead of pressing buttons as it is often done in this type of study [18]. This method of verbal response provided us with a unique opportunity of acquiring non-confounded EEG data which would otherwise be confounded with a real motor activity of the hands.…”

Section: Discussionmentioning

confidence: 99%

“…The rational for using verbal response was to avoid hand movement which would occur if the subjects were told to push a button to supply their answers. The hand movement might interfere with experimental outcome [18]. The interference is not expected in the case of verbal response since the motor cortex area which controls the mouth movement is different from the hand area.…”

Section: Methodsmentioning

confidence: 99%

Is Implicit Motor Imagery a Reliable Strategy for a Brain–Computer Interface?

Osuagwu

Zych

Vučković

2017

IEEE Trans. Neural Syst. Rehabil. Eng.

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Explicit motor imagery (eMI) is a widely used brain-computer interface (BCI) paradigm, but not everybody can accomplish this task. Here, we propose a BCI based on implicit motor imagery (iMI). We compared classification accuracy between eMI and iMI of hands. Fifteen able-bodied people were asked to judge the laterality of hand images presented on a computer screen in a lateral or medial orientation. This judgment task is known to require mental rotation of a person's own hands, which in turn is thought to involve iMI. The subjects were also asked to perform eMI of the hands. Their electroencephalography was recorded. Linear classifiers were designed based on common spatial patterns. For discrimination between left hand and right hand, the classifier achieved maximum of 81 ± 8% accuracy for eMI and 83 ± 3% for iMI. These results show that iMI can be used to achieve similar classification accuracy as eMI. Additional classification was performed between iMI in medial and lateral orientations of a single hand; the classifier achieved 81 ± 7% for the left hand and 78 ± 7% for the right hand, which indicate distinctive spatial patterns of cortical activity for iMI of a single hand in different directions. These results suggest that a special BCI based on iMI may be constructed, for people who cannot perform explicit imagination, for rehabilitation of movement, or for treatment of bodily spatial neglect.

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“…Participants were instructed to evaluate the laterality of the observed hand by pressing a left response key with the left index finger, when the observed hand was judged to be ‘left’, and a right response key with the right index finger when the observed hand was judged to be ‘right’. As in prior studies [ 24 , 25 , 32 , 46 ], response keys were not counterbalanced across participants.…”

Section: Methodsmentioning

confidence: 99%

Motor-based bodily self is selectively impaired in eating disorders

et al. 2017

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BackgroundBody representation disturbances in body schema (i.e. unconscious sensorimotor body representations for action) have been frequently reported in eating disorders. Recently, it has been proposed that body schema relies on adequate functioning of the motor system, which is strongly implicated in discriminating between one’s own and someone else’s body. The present study aimed to investigate the motor-based bodily self in eating disorders and controls, in order to examine the role of the motor system in body representation disturbances at the body schema level.MethodFemale outpatients diagnosed with eating disorders (N = 15), and healthy controls (N = 18) underwent a hand laterality task, in which their own (self-stimuli) and someone else’s hands (other-stimuli) were displayed at different orientations. Participants had to mentally rotate their own hand in order to provide a laterality judgement. Group differences in motor-based bodily self-recognition—i.e. whether a general advantage occurred when implicitly processing self- vs. other-stimuli − were evaluated, by analyzing response times and accuracy by means of mixed ANOVAs.ResultsPatients with eating disorders did not show a temporal advantage when mentally rotating self-stimuli compared to other-stimuli, as opposed to controls (F(1, 31) = 5.6, p = 0.02; eating disorders-other = 1092 ±256 msec, eating disorders-self = 1097±254 msec; healthy controls-other = 1239±233 msec, healthy controls -self = 1192±232 msec).ConclusionThis study provides initial indication that high-level motor functions might be compromised as part of body schema disturbances in eating disorders. Further larger investigations are required to test motor system abnormalities in the context of body schema disturbance in eating disorders.

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Reaction time differences between left- and right-handers during mental rotation of hand pictures

Cited by 34 publications

References 27 publications

Cortical Asymmetries during Hand Laterality Task Vary with Hand Laterality: A fMRI Study in 295 Participants

Cortical Asymmetries during Hand Laterality Task Vary with Hand Laterality: A fMRI Study in 295 Participants

Is Implicit Motor Imagery a Reliable Strategy for a Brain–Computer Interface?

Motor-based bodily self is selectively impaired in eating disorders

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