Fast modulation of alpha activity during visual processing and motor control

Sabaté, Magdalena; Llanos, Catalina; Enriquez, E.; González, Bernardo; Rodrı́guez, Manuel

doi:10.1016/j.neuroscience.2011.05.011

Cited by 17 publications

(19 citation statements)

References 81 publications

(100 reference statements)

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“…Looking at the phase-locked activity, it has been suggested that alpha activity could promote the cortical processing of information increasing phase-locked and decreasing non-phase-locked activity (Sabate et al, 2011). Interestingly, previous studies showed how the QMT could lead to an increase of alpha coherence, suggesting that this result could be a direct effect of the complexity of the training, which require a great combination of mind-body information (Ben-Soussan et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

“…In particular, alpha oscillation and alpha band functional connectivity could be the target of sensorimotor processes (Neuper et al, 2006; Sabate et al, 2011, 2012; Lopes da Silva, 2013), also as they are closely involved in motor execution, motor imagery and visuomotor accuracy (Rilk et al, 2011; Sabate et al, 2011). In addition, the consistent report related to increased clustering of alpha networks has led to the model suggesting that alpha oscillation could carry elaborate information about the neurophysiological ongoing processes assuming also the role of local neuronal processing (Athanasiou et al, 2012, 2014, 2016).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Increased Alpha Band Functional Connectivity Following the Quadrato Motor Training: A Longitudinal Study

Lasaponara

Mauro

Carducci

et al. 2017

Front. Hum. Neurosci.

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Quadrato Motor Training (QMT) is a new training paradigm, which was found to increase cognitive flexibility, creativity and spatial cognition. In addition, QMT was reported to enhance inter- and intra-hemispheric alpha coherence as well as Fractional Anisotropy (FA) in a number of white matter pathways including corpus callosum. Taken together, these results seem to suggest that electrophysiological and structural changes induced by QMT may be due to an enhanced interplay and communication of the different brain areas within and between the right and the left hemisphere. In order to test this hypothesis using the exact low-resolution brain electromagnetic tomography (eLORETA), we estimated the current neural density and lagged linear connectivity (LLC) of the alpha band in the resting state electroencephalography (rsEEG) recorded with open (OE) and closed eyes (CE) at three different time points, following 6 and 12 weeks of daily QMT. Significant changes were observed for the functional connectivity. In particular, we found that limbic and fronto-temporal alpha connectivity in the OE condition increased after 6 weeks, while it enhanced at the CE condition in occipital network following 12-weeks of daily training. These findings seem to show that the QMT may have dissociable long-term effects on the functional connectivity depending on the different ways of recording rsEEG. OE recording pointed out a faster onset of Linear Lag Connectivity modulations that tend to decay as quickly, while CE recording showed sensible effect only after the complete 3-months training.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Increased Alpha Band Functional Connectivity Following the Quadrato Motor Training: A Longitudinal Study

Lasaponara

Mauro

Carducci

et al. 2017

Front. Hum. Neurosci.

View full text Add to dashboard Cite

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“…Alpha brain waves are regular sinusoidal shaped brain waves oscillating at 8 to 12 Hz, modulated by the thalamus and found in a distributed network of cortical areas affecting sensory, motor, and cognitive processes (Sabate, Llanos, Enriquez, Gonzalez, & Rodriguez, 2011). It is more difficult to identify stimuli during visual perception when the overall power of alpha brain waves is high (Thut, Nietzel, Brandt, & Pascual-Leone, 2006).…”

Section: Introductionmentioning

confidence: 99%

Remote Associates Test and Alpha Brain Waves

Haarmann¹,

George²,

Smaliy³

et al. 2012

The Journal of Problem Solving

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Abstract:Previous studies found that performance on the remote associates test (RAT) improves after a period of incubation and that increased alpha brain waves over the right posterior brain predict the emergence of RAT insight solutions. We report an experiment that tested whether increased alpha brain waves during incubation improve RAT performance. Participants received two blocks of RAT items (RAT1 and RAT2), with the second block consisting of items that were not solved during the first block. Participants were randomly assigned to three groups, which were matched for their number of RAT1 solutions. Participants in an alpha-up neurofeedback group aimed to increase their alpha brain waves over the right posterior brain in between the two blocks, whereas participants in an alpha-down neurofeedback group aimed to decrease these same brain waves. A third group of participants did not perform neurofeedback and proceeded immediately from the first to the second block of RAT items. We found evidence for more RAT2 solutions in participants who interrupted their RAT performance with neurofeedback, especially in ones who showed high alpha brain waves during neurofeedback. These results are consistent with the notion that an alert but relaxed mental state, indexed by alpha brain waves, may aid the read out of an implicitly activated memory network of weak associates.

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“…Direct projections between the MD, M‐Tal, and ILTal have not been reported and cannot be used to explain the marked functional connectivity observed between these centers. However, the three thalamic nuclei are interconnected with the reticular nucleus of the thalamus [Cornwall and Phillipson, ; Kolmac and Mitrofanis, ; Steriade et al, ; Velayos et al, ], which is a center which synchronizes most thalamic centers [Huguenard and McCormick, ; Klimesch, ; Klimesch et al, ; Quiroga‐Varela et al, ; Sabate et al, ; Steriade, ; Steriade and Deschenes, ; Wang, ]. Thus, the reticular nucleus could be a good candidate to induce the high functional connectivity of the ILTal, M‐Tal, and MD.…”

Section: Discussionmentioning

confidence: 99%

The functional connectivity of intralaminar thalamic nuclei in the human basal ganglia

Rodriguez-Sabate

Llanos

Moráles

et al. 2014

Human Brain Mapping

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Projections of the centromedian-parafasicularis neurons of the intralaminar thalamus are major inputs of the striatum. Their functional role in the activity of human basal ganglia (BG) is not well known. The aim of this work was to study the functional connectivity of intralaminar thalamic nuclei with other BG by using the correlations of the BOLD signal recorded during "resting" and a motor task. Intralaminar nuclei showed a marked functional connectivity with all the tested BG, which was observed during "resting" and did not change with the motor task. As regards the intralaminar nuclei, BG connectivity was much lower for the medial dorsal nucleus (a thalamic nucleus bordering the intralaminar nuclei) and for the default mode network (although intralaminar nuclei showed a negative correlation with the default mode network). After the "regression" of intralaminar nuclei activity (partial correlation), the functional connectivity of the caudate and putamen nuclei with other BG decreased (but not with the primary sensorimotor cortex). Present data provide evidence that intralaminar nuclei are not only critical for striatal activity but also for the global performance of human BG, an action involving subcortical BG loops more than cortico-subcortical loops. The high correlation found between BG suggest that, similarly to that reported in other brain centers, the very-slow frequency fluctuations are relevant for the functional activity of these centers.

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Fast modulation of alpha activity during visual processing and motor control

Cited by 17 publications

References 81 publications

Increased Alpha Band Functional Connectivity Following the Quadrato Motor Training: A Longitudinal Study

Increased Alpha Band Functional Connectivity Following the Quadrato Motor Training: A Longitudinal Study

Remote Associates Test and Alpha Brain Waves

The functional connectivity of intralaminar thalamic nuclei in the human basal ganglia

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