Presaccadic Brain Potentials in Conditions of Covert Attention Orienting

Slavutskaya, Maria; Shul'govskii, V. V.

doi:10.1017/s1138741600006545

Cited by 8 publications

(3 citation statements)

References 15 publications

(39 reference statements)

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“…There are at least three interpretations why playing preferred musical pieces had a beneficial effect on eye tracking. First, music may act as a cue to shift visual attention from one locus to another [32]–[34]. Visual cueing improves the reaction time of PD subjects on a task in which subjects save a cartoon character from getting run over [35].…”

Section: Discussionmentioning

confidence: 99%

Music Attenuates Excessive Visual Guidance of Skilled Reaching in Advanced but Not Mild Parkinson's Disease

2009

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Parkinson's disease (PD) results in movement and sensory impairments that can be reduced by familiar music. At present, it is unclear whether the beneficial effects of music are limited to lessening the bradykinesia of whole body movement or whether beneficial effects also extend to skilled movements of PD subjects. This question was addressed in the present study in which control and PD subjects were given a skilled reaching task that was performed with and without accompanying preferred musical pieces. Eye movements and limb use were monitored with biomechanical measures and limb movements were additionally assessed using a previously described movement element scoring system. Preferred musical pieces did not lessen limb and hand movement impairments as assessed with either the biomechanical measures or movement element scoring. Nevertheless, the PD patients with more severe motor symptoms as assessed by Hoehn and Yahr (HY) scores displayed enhanced visual engagement of the target and this impairment was reduced during trials performed in association with accompanying preferred musical pieces. The results are discussed in relation to the idea that preferred musical pieces, although not generally beneficial in lessening skilled reaching impairments, may normalize the balance between visual and proprioceptive guidance of skilled reaching.

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Section: Discussionmentioning

confidence: 99%

Music Attenuates Excessive Visual Guidance of Skilled Reaching in Advanced but Not Mild Parkinson's Disease

2009

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“…The right FEF might be more involved in AS than PS (Connolly et al 2002;DeSouza et al 2003). Spatiotemporal analyses of presaccadic potentials showed that the right frontal cortex is activated to a greater extent prior to AS than PS (Slavutskaya and Shulgovskii 2007. Apparently, the right hemisphere dominates the preparation and spatial attention and inhibition of automatic saccades to visual stimulation. In a prosaccade, task attention could remain at the location of stimulus as the saccade is directed to the stimulus.…”

Section: Neural Activity In Pro-and Antisaccades: Similarities and DImentioning

confidence: 92%

Cortical control of saccades in Parkinson disease and essential tremor

2012

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A number of studies suggest that some features of essential tremor (ET) and Parkinson disease (PD) overlap. Besides tremor, also some cognitive features have been implicated in ET and PD. There is recent evidence that a common genetic mutation occurs in ET and PD. Saccadic eye movements could provide an easily quantifiable procedure to help in the differential diagnosis in early PD and ET. Being able to distinguish early on the two diseases may help in tailoring therapy. Cortical control of saccades and antisaccades as they pertain to the potential discrimination of PD and ET is reviewed. Imaging and electrophysiological studies are highlighted; however, there are still few studies. Hopefully this review will stimulate further research, in particular in the direction of differences and similarities in the neural circuits involved in PD and ET.

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“…Early this potential was associated with processes of motor preparation, decision-making and movement initiation [5,6,8].…”

Section: Bmentioning

confidence: 99%

EEG Correlates of Decision-Making and Preparation of Saccades in Human

Slavutskaya¹,

Moiseeva²,

Kotenev³

et al. 2014

GSTF J Psych

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-A modificated version of experimental scheme "double step" was used to study the decision-making process in saccade programming. Two short visual stimuli were presented sequentially in opposite hemifields (scheme pulse overshoot). The "pattern" of response (double saccade or single saccade at the second target) and latency of the first saccade depended on the duration of the first stimulus (150 or 50 ms). Positive ERP components were revealed within the interval 100 -120 ms before the saccade onset by using the method of selective EEG averaging. These potentials can be considered as markers of the decision-making process. The parameters and topography of these components indicate involvement of the frontalparietal neural network of saccadic control and frontalparietal-and medial-thalamic activation systems of selective attention at the stage of decision-making process.Keywords the positive component; saccade programming, decision-making, event related potential (ERP).

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Presaccadic Brain Potentials in Conditions of Covert Attention Orienting

Cited by 8 publications

References 15 publications

Music Attenuates Excessive Visual Guidance of Skilled Reaching in Advanced but Not Mild Parkinson's Disease

Music Attenuates Excessive Visual Guidance of Skilled Reaching in Advanced but Not Mild Parkinson's Disease

Cortical control of saccades in Parkinson disease and essential tremor

EEG Correlates of Decision-Making and Preparation of Saccades in Human

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