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Postural stability and psychomotor task performance in affective disorders
IOP 2016
13 Symposium C3 Psychophysiological mechanisms of balance control Organizer: Olga M. Bazanova (Russia) Postural control emerges as the expression of both feed-forward, centrally driven and feed-back peripherally dependent mechanisms. It is strictly connected to all the repertoire of motor skills that can be executed in standing position and, similarly to the latter, it may undergo plasticity phenomena optimizing its performance. Moreover, it is influenced by and could affect cognitive and psychomotor states and traits. Since postural control is affected by brain disfunctions and pathologies, its modulation can be used as an indicator of both cognitive and psychomotor disorders. In the light of these consideration we propose a symposium focused on the following topics.
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Results: As expected, fluency in TFMTP was highest in PM vs MS and NM [p=0.001]. It raised in standing position in NM and MS. Fluency during imagined TFMTP was lower than during actual motor task in NM and MS groups ( p ≤. 0.02), but higher in PM (p ≤. 0.001). There were no differences of alpha EEG and EMG power between NM, MS and PM in rest sitting condition (pN0.05). A main effect of group was observed (pb0.001] for ratio of alpha EEG / EMG power during TFMTP. Alpha EEG/EMG power during TFMTP significant increased in standing position in NM and MS subjects. Conclusions: We consider that high musical motor capacity is part of a wider sensorimotor integration characterized by fluent movements, accurate co-ordination and precise imagination. doi:10.1016/j.ijpsycho.2016.07.080
368 Postural stability and psychomotor task performance in affective disorders
doi:10.1016/j.ijpsycho.2016.07.079
308 Alpha EEG/EMG ratio while the finger movement as an index of musical performance ability in sitting and standing position Anna V. Kondratenkoa, Olga M. Bazanovab, Tatiana I. Petrenkoc Macedonian Philharmonic Orchestra, Skopje, Macedonia b Department of Experimental & Clinical Neuroscience, Lab. of Affective, Cognitive & Translational Neuroscience, Federal State Budgetary Scientific Institution “Scientific Research Institute of Physiology & Basic Medicine”, Novosibirsk State University Novosibirsk, Russia c Shnittke Moscow State Institute for music (Russian Federation), Moscow, Russia a
Background: The production of voluntary movements by musicians often has many more elements contributing to performance than are absolutely necessary to solve a given motor task. Nevertheless, only top musicians perform well by eliminating ‘redundant degrees of freedom’ [Bernstein, 1996]. Context redundancy reflects the inefficiency of inhibitory processes of the sensorimotor coordination,. That is indexed by electroencephalographic (EEG) amplitude of the upper alpha frequency range, with simultaneous decrease in electromyographic (EMG) power of redundant muscle tension during fine motor performance. How change of these indices during timed fingers motor task performance TFMTP contribute to musical performance ability remain unclear. The second question is how alpha-EEG/EMG ratio change during dual sensorimotor task - TFMTP + postural control. Here we hypothesized that movement performance fluency is reflected by changes of brain alpha EEG and muscles EMG power, contributing to efficiency of redundancy inhibitory processes that increased in standing position. So the aim is to study association between movement fluency and neurophysiological activity during TFMTP in sitting and standing position. Methods: The fluency in TFMTP was assessed in eighteen nonmusicians (NM), thirty musical students (MS) and in twelve top performers musicians (PM). Simultaneous monitoring the EEG, EMG were provided in rest, during TFMTP and mental imagination of TFMTP in sitting and standing position The fluency of TFMTP was computed as the number of finger movements sets per minute. The EEG was recorded monopolarly from Pz. Simultaneously EMG recorded from two bipolar electrodes placed at the forehead skin with a sampling rate of 720 Hz. A three-way repeated-measures ANOVAs were used to evaluate matching performances fluency, alpha EEG and EMG.
Olga M. Bazanova, Natalya V. Kholodina Department of Experimental & Clinical Neuroscience, Lab. of Affective, Cognitive & Translational Neuroscience, Federal State Budgetary Scientific Institution “Scientific Research Institute of Physiology & Basic Medicine”, Novosibirsk, Russia Background: Because negative mood yields retardation of moodcongruent motor functions, the ability to motor coordination including postural control could be crucial in differentiating healthy people who recover easily from negative affect from Depressed people (MDD) and people with panic attack (PA). Postural control and fine motor performance tests are widely used to evaluate sensorimotor integration. The aim of this study was to compare the energy getting for center of pressure deviation (CoPD) during rest and fine motor task in sitting and upright standing postures in healthy subjects and patients with affective disorders. Methods: Eighteen patients with MDD, seventeen patients having panic attacks (PA) for at least six months and aged matched sixteen healthy subjects (HC) were investigated. Fluency in fine motor task performance was quantified as the sum of finger movement per minute. The length (mm), square (mm2), velocity (mm/s) and energy getting for CoPD was calculated in 2 postural position: sitting and standing during rest, fine motor task performance (FMT) and mental imagination of FMT performance with eyes closed and open. EEG was recorded from Pz scalp locations throughout tests. EMG recorded from frontal forehead muscles. The individual alpha peak frequency (IAPF), as well as power in lower and upper alpha frequency bands were determined for each task after applying an ICA-based artifact rejection procedure. Results: In rest condition posture perturbation from sitting to standing is associated with greater EEG alpha power suppression, EMG increasing and energy demands on CoPD in patients with affective disorders than in healthy subjects. Increasing energy demands on CoPD in upright standing is associated with severity of depression. Fine motor task performance and even its mental imagination is associated with decreasing the energy demands on CoPD in MDD and PA patients but with increasing in HC in both sitting and standing positions. Conclusion: Quantitative measurement of motor task performance in MDD and PA patients may provide a better understanding of pathomechanisms of sensorimotor control deficit in affective disorders and increase the efficacy of sensorimotor cueing strategies for alleviating affective disorders, by more accurately identifying suitable patients for rehabilitative therapies. doi:10.1016/j.ijpsycho.2016.07.081
13 Symposium C3 Psychophysiological mechanisms of balance control Organizer: Olga M. Bazanova (Russia) Postural control emerges as the expression of both feed-forward, centrally driven and feed-back peripherally dependent mechanisms. It is strictly connected to all the repertoire of motor skills that can be executed in standing position and, similarly to the latter, it may undergo plasticity phenomena optimizing its performance. Moreover, it is influenced by and could affect cognitive and psychomotor states and traits. Since postural control is affected by brain disfunctions and pathologies, its modulation can be used as an indicator of both cognitive and psychomotor disorders. In the light of these consideration we propose a symposium focused on the following topics.
25
Results: As expected, fluency in TFMTP was highest in PM vs MS and NM [p=0.001]. It raised in standing position in NM and MS. Fluency during imagined TFMTP was lower than during actual motor task in NM and MS groups ( p ≤. 0.02), but higher in PM (p ≤. 0.001). There were no differences of alpha EEG and EMG power between NM, MS and PM in rest sitting condition (pN0.05). A main effect of group was observed (pb0.001] for ratio of alpha EEG / EMG power during TFMTP. Alpha EEG/EMG power during TFMTP significant increased in standing position in NM and MS subjects. Conclusions: We consider that high musical motor capacity is part of a wider sensorimotor integration characterized by fluent movements, accurate co-ordination and precise imagination. doi:10.1016/j.ijpsycho.2016.07.080
368 Postural stability and psychomotor task performance in affective disorders
doi:10.1016/j.ijpsycho.2016.07.079
308 Alpha EEG/EMG ratio while the finger movement as an index of musical performance ability in sitting and standing position Anna V. Kondratenkoa, Olga M. Bazanovab, Tatiana I. Petrenkoc Macedonian Philharmonic Orchestra, Skopje, Macedonia b Department of Experimental & Clinical Neuroscience, Lab. of Affective, Cognitive & Translational Neuroscience, Federal State Budgetary Scientific Institution “Scientific Research Institute of Physiology & Basic Medicine”, Novosibirsk State University Novosibirsk, Russia c Shnittke Moscow State Institute for music (Russian Federation), Moscow, Russia a
Background: The production of voluntary movements by musicians often has many more elements contributing to performance than are absolutely necessary to solve a given motor task. Nevertheless, only top musicians perform well by eliminating ‘redundant degrees of freedom’ [Bernstein, 1996]. Context redundancy reflects the inefficiency of inhibitory processes of the sensorimotor coordination,. That is indexed by electroencephalographic (EEG) amplitude of the upper alpha frequency range, with simultaneous decrease in electromyographic (EMG) power of redundant muscle tension during fine motor performance. How change of these indices during timed fingers motor task performance TFMTP contribute to musical performance ability remain unclear. The second question is how alpha-EEG/EMG ratio change during dual sensorimotor task - TFMTP + postural control. Here we hypothesized that movement performance fluency is reflected by changes of brain alpha EEG and muscles EMG power, contributing to efficiency of redundancy inhibitory processes that increased in standing position. So the aim is to study association between movement fluency and neurophysiological activity during TFMTP in sitting and standing position. Methods: The fluency in TFMTP was assessed in eighteen nonmusicians (NM), thirty musical students (MS) and in twelve top performers musicians (PM). Simultaneous monitoring the EEG, EMG were provided in rest, during TFMTP and mental imagination of TFMTP in sitting and standing position The fluency of TFMTP was computed as the number of finger movements sets per minute. The EEG was recorded monopolarly from Pz. Simultaneously EMG recorded from two bipolar electrodes placed at the forehead skin with a sampling rate of 720 Hz. A three-way repeated-measures ANOVAs were used to evaluate matching performances fluency, alpha EEG and EMG.
Olga M. Bazanova, Natalya V. Kholodina Department of Experimental & Clinical Neuroscience, Lab. of Affective, Cognitive & Translational Neuroscience, Federal State Budgetary Scientific Institution “Scientific Research Institute of Physiology & Basic Medicine”, Novosibirsk, Russia Background: Because negative mood yields retardation of moodcongruent motor functions, the ability to motor coordination including postural control could be crucial in differentiating healthy people who recover easily from negative affect from Depressed people (MDD) and people with panic attack (PA). Postural control and fine motor performance tests are widely used to evaluate sensorimotor integration. The aim of this study was to compare the energy getting for center of pressure deviation (CoPD) during rest and fine motor task in sitting and upright standing postures in healthy subjects and patients with affective disorders. Methods: Eighteen patients with MDD, seventeen patients having panic attacks (PA) for at least six months and aged matched sixteen healthy subjects (HC) were investigated. Fluency in fine motor task performance was quantified as the sum of finger movement per minute. The length (mm), square (mm2), velocity (mm/s) and energy getting for CoPD was calculated in 2 postural position: sitting and standing during rest, fine motor task performance (FMT) and mental imagination of FMT performance with eyes closed and open. EEG was recorded from Pz scalp locations throughout tests. EMG recorded from frontal forehead muscles. The individual alpha peak frequency (IAPF), as well as power in lower and upper alpha frequency bands were determined for each task after applying an ICA-based artifact rejection procedure. Results: In rest condition posture perturbation from sitting to standing is associated with greater EEG alpha power suppression, EMG increasing and energy demands on CoPD in patients with affective disorders than in healthy subjects. Increasing energy demands on CoPD in upright standing is associated with severity of depression. Fine motor task performance and even its mental imagination is associated with decreasing the energy demands on CoPD in MDD and PA patients but with increasing in HC in both sitting and standing positions. Conclusion: Quantitative measurement of motor task performance in MDD and PA patients may provide a better understanding of pathomechanisms of sensorimotor control deficit in affective disorders and increase the efficacy of sensorimotor cueing strategies for alleviating affective disorders, by more accurately identifying suitable patients for rehabilitative therapies. doi:10.1016/j.ijpsycho.2016.07.081