Neural Correlates of the Spontaneous Phase Transition during Bimanual Coordination

Aramaki, Yu; Honda, Manabu; Okada, Tomohisa; Sadato, Norihiro

doi:10.1093/cercor/bhj075

Cited by 99 publications

(94 citation statements)

References 78 publications

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“…As such, we have partial data (13 subjects) for right-handed tapping. However, nondominant left-hand movements have been reported to fluctuate more in the BP mode than those of the dominant right hand (Semjen et al, 1995;Aramaki et al, 2006). Thus, we calculated performance indices using left-hand tapping data for all 18 subjects and used it in the correlation analysis with brain activity.…”

Section: Discussionmentioning

confidence: 99%

“…The relationship between the stability of periodic bimanual movement and brain activity has previously been studied by comparing epoch-related brain activity during in-phase and antiphase movements (Sadato et al, 1997;MeyerLindenberg et al, 2002;Aramaki et al, 2006Aramaki et al, , 2010Kraft et al, 2007;Müller et al, 2009). However, relatively few studies have focused on transient brain activity during the movement initiation or pattern-switching phases (Aramaki et al, 2006(Aramaki et al, , 2010Kraft et al, 2007;De Luca et al, 2010). Our findings are consistent with previous studies reporting greater transient brain activity in the putamen during antiphase movements relative to in-phase movements (Kraft et al, 2007;Aramaki et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…We previously found that a movement frequency of 3 Hz is appropriate for observing individual differences in this task (Aramaki et al, 2006). Two USB MRI-compatible 10-key pads (TK-UYGT, ELECOM) were used to record finger taps.…”

Section: Experimental Taskmentioning

confidence: 99%

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Movement Initiation-Locked Activity of the Anterior Putamen Predicts Future Movement Instability in Periodic Bimanual Movement

Aramaki

Haruno

Osu³

et al. 2011

Journal of Neuroscience

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In periodic bimanual movements, anti-phase-coordinated patterns often change into in-phase patterns suddenly and involuntarily. Because behavior in the initial period of a sequence of cycles often does not show any obvious errors, it is difficult to predict subsequent movement errors in the later period of the cyclical sequence. Here, we evaluated performance in the later period of the cyclical sequence of bimanual periodic movements using human brain activity measured with functional magnetic resonance imaging as well as using initial movement features. Eighteen subjects performed a 30 s bimanual finger-tapping task. We calculated differences in initiationlocked transient brain activity between antiphase and in-phase tapping conditions. Correlation analysis revealed that the difference in the anterior putamen activity during antiphase compared within-phase tapping conditions was strongly correlated with future instability as measured by the mean absolute deviation of the left-hand intertap interval during antiphase movements relative to in-phase movements (r ϭ 0.81). Among the initial movement features we measured, only the number of taps to establish the antiphase movement pattern exhibited a significant correlation. However, the correlation efficient of 0.60 was not high enough to predict the characteristics of subsequent movement. There was no significant correlation between putamen activity and initial movement features. It is likely that initiating unskilled difficult movements requires increased anterior putamen activity, and this activity increase may facilitate the initiation of movement via the basal ganglia-thalamocortical circuit. Our results suggest that initiation-locked transient activity of the anterior putamen can be used to predict future motor performance.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Movement Initiation-Locked Activity of the Anterior Putamen Predicts Future Movement Instability in Periodic Bimanual Movement

Aramaki

Haruno

Osu³

et al. 2011

Journal of Neuroscience

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“…Using event-related functional MRI (fMRI), Aramaki et al (2006a) depicted the transition-related activity in multiple right-lateralized parieto-premotor regions.…”

Section: Introductionmentioning

confidence: 99%

“…Aramaki et al (2006a) concluded that at the phase transition, the cortical neural cross-talk occurs in distributed networks upstream of the primary motor cortex through asymmetric interhemispheric interaction.…”

Section: Introductionmentioning

confidence: 99%

Asymmetric control mechanisms of bimanual coordination: An application of directed connectivity analysis to kinematic and functional MRI data

Maki¹,

Wong²,

Sugiura³

et al. 2008

NeuroImage

Self Cite

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Mirror-symmetrical bimanual movement is more stable than parallel bimanual movement. This is well established at the kinematic level. I used functional MRI (fMRI) to evaluate the neural substrates of the stability of mirror-symmetrical bimanual movement. Right-handed participants (n = 17) rotated disks with their index fingers bimanually, both in mirror-symmetrical and asymmetrical parallel modes. I applied the Akaike causality model to both kinematic and fMRI time-series data. I hypothesized that kinematic stability is represented by the extent of neural "cross-talk": as the fraction of signals that are common to controlling both hands increases, the stability also increases. The standard deviation of the phase difference for the mirror mode was significantly smaller than that for the parallel mode, confirming that the former was more stable. I used the noise-contribution ratio (NCR), which was computed using a multivariate autoregressive model with latent variables, as a direct measure of the cross-talk between both the two hands and the bilateral primary motor cortices (M1s). The mode-by-direction interaction of the NCR was significant in both the kinematic and fMRI data. Furthermore, in both sets of data, the NCR from the right hand to the left was more prominent than vice versa during the mirror-symmetrical mode, whereas no difference was observed during parallel movement or rest. The asymmetric interhemispheric interaction from the left M1 to the right M1 during symmetric bimanual movement might represent cortical-level cross-talk, which contributes to the stability of symmetric bimanual movements.4

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Interhemispheric connections of the ventral premotor cortex in a new world primate

Dancause

Barbay

Frost

et al. 2007

J of Comparative Neurology

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This study describes the pattern of interhemispheric connections of the ventral premotor cortex (PMv) distal forelimb representation (DFL) in squirrel monkeys. Our objectives were to describe qualitatively and quantitatively the connections of PMv with contralateral cortical areas. Intracortical microstimulation techniques (ICMS) guided the injection of the neuronal tract tracers biotinylated dextran amine or Fast blue into PMv DFL. We classified the interhemispheric connections of PMv into three groups. Major connections were found in the contralateral PMv and supplementary motor area (SMA). Intermediate interhemispheric connections were found in the rostral portion of the primary motor cortex, the frontal area immediately rostral and ventral to PMv (FR), cingulate motor areas (CMAs), and dorsal premotor cortex (PMd). Minor connections were found inconsistently across cases in the anterior operculum (AO), posterior operculum/inferior parietal cortex (PO/IP), and posterior parietal cortex (PP), areas that consistently show connections with PMv in the ipsilateral hemisphere. Within-case comparisons revealed that the percentage of PMv connections with contralateral SMA and PMd are higher than the percentage of PMv connections with these areas in the ipsilateral hemisphere; percentages of PMv connections with contralateral M1 rostral, FR, AO, and the primary somatosensory cortex are lower than percentages of PMv connections with these areas in the ipsilateral hemisphere. These studies increase our knowledge of the pattern of interhemispheric connection of PMv. They help to provide an anatomical foundation for understanding PMv's role in motor control of the hand and interhemispheric interactions that may underlie the coordination of bimanual movements.

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Neural Correlates of the Spontaneous Phase Transition during Bimanual Coordination

Cited by 99 publications

References 78 publications

Movement Initiation-Locked Activity of the Anterior Putamen Predicts Future Movement Instability in Periodic Bimanual Movement

Movement Initiation-Locked Activity of the Anterior Putamen Predicts Future Movement Instability in Periodic Bimanual Movement

Asymmetric control mechanisms of bimanual coordination: An application of directed connectivity analysis to kinematic and functional MRI data

Interhemispheric connections of the ventral premotor cortex in a new world primate

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