
Hadj Boumediene MezianeSwiss Distance University Institute · Department of psychology
Hadj Boumediene Meziane
Phd
Phd Research Scientist
About
26
Publications
9,245
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506
Citations
Introduction
Doing research in EEG brain dynamics & plasticity, attention, memory, movement
Additional affiliations
November 2013 - October 2015
October 2015 - present
September 2004 - July 2005
Biomedical engineering
Position
- Master's Student
Publications
Publications (26)
Several brain regions in the frontal, occipital and medial temporal lobes are known to contribute to spatial information processing. In contrast, the oscillatory patterns contributing to allocentric spatial working memory maintenance are poorly understood, especially in humans. Here, we tested twenty-three 21- to 32-year-old and twenty-two 64- to 7...
This clinical case report presents synchronous physiological data from an individual in whom a spontaneous vasovagal reaction occurred without syncope. The physiological data are presented for three main phases: Baseline (0–200 s), vasovagal reaction (200–600 s), and recovery period (600–1200 s). The first physiological changes occurred at around 2...
Anticipation is the ability to accurately predict future actions or events ahead of the act itself. When attempting to anticipate, researchers have identified that at least two broad sources of information are used: contextual information relating to the situation in question; and biological motion from postural cues. However, the neural correlates...
Background: During rhythmic unimanual and bimanual movements, the contribution of motor cortices has been extensively emphasized. By contrast, little is known about the motor commands sent to active muscles during such coordinated movements. Corticomuscular coherence (CMC) allows to evaluate the direct implication of the cortical structures in modu...
Anticipation is the ability to accurately predict the outcome of an opponent’s actions ahead of the act itself. This ability relies on at least two sources of information: kinematic and contextual information (Runswick et al., 2018). No data exists to demonstrate how neural activity supports the use of these two information sources. We recorded the...
The conflict monitoring model predicting higher anterior cingulate cortex (ACC) neuronal activity on incongruent trials has been recently challenged by a model predicting longer neuronal activity in incongruent trials characterized by longer RTs. To clarify this issue, brain dynamics were explored through event-related-potential (ERP) recordings du...
Anticipation is the ability to accurately predict the outcome of an opponent’s actions ahead of the act itself. In cricket, recent studies reported that experts are able to use two sources of information: low-level kinematic cues from the bowler but also high-level contextual information related to the event (Runswick et al., 2018). This study aims...
Transcranial magnetic stimulation (TMS) studies have shown that observing an action induces muscle-specific changes in corticospinal excitability. From a signal detection theory standpoint, this pattern can be related to sensitivity, which here would measure the capacity to distinguish between two action observation conditions. In parallel to these...
We investigated changes in resting-sate EEG signal over learning periods. In particular, we recorded resting periods falling between task trials in order to systematically investigate changes in resting-state EEG signal over a period of learning. We respectively analyzed frequency and time domain in order to evaluate changes in power spectrum and p...
Future treatments of Alzheimer's disease need the identification of cases at high risk at the preclinical stage of the disease before the development of irreversible structural damage. We investigated here whether subtle cognitive deterioration in a population of healthy elderly individuals could be predicted by EEG signals at baseline under cognit...
In previous studies of young subjects performing a reaction-time reaching task, we found that faster reaction times are associated with increased suppression of beta power over pri-mary sensorimotor areas just before target presentation. Here we ascertain whether such beta decrease similarly occurs in normally aging subjects and also in patients wi...
In previous studies of young subjects performing a reaction-time reaching task, we found that faster reaction times are associated with increased suppression of beta power over primary sensorimotor areas just before target presentation. Here we ascertain whether such beta decrease similarly occurs in normally aging subjects and also in patients wit...
Objective:
To determine whether abnormal beta activity in motor areas plays a role in the genesis of Parkinson's disease (PD) bradykinesia.
Background:
Recordings of basal ganglia activity during electrode implant have repetitively shown that slowness and difficulty in movement onset in PD might be linked to increased drive in the beta frequency ra...
Recent EEG studies have shown that implicit learning involving specific cortical circuits results in an enduring local trace manifested as local changes in spectral power. Here we used a well characterized visual sequence learning task and high density-(hd-)EEG recording to determine whether also declarative learning leaves a post-task, local chang...
BACKGROUND:
. Neuropathic pain often follows spinal cord injury (SCI).
OBJECTIVE:
. To compare the effect of repetitive transcranial magnetic stimulation (rTMS) applied over different motor cortex targets (hand vs leg area) versus sham stimulation on neuropathic pain and local neurophysiological changes in patients with SCI.
METHODS:
. A total of 1...
During voluntary motor acts, potential perturbations due to transient external forces are counteracted very quickly by short- and long-latency stretch reflexes (SLSR and LLSR, respectively). The LLSR, presumably linked to a transcortical loop, can be modulated by the subjects' intention. Here, we used combined TMS-EEG to study cortical mechanisms i...
If achieving a voluntary movement requires the involvement of different processes, the preparation that determines the efficiency of motor control, is meanwhile, an intriguing case for the scientists. In this respect, many studies about voluntary movement preparation have sprung, concerning humans or animals on the behavioral and neurophysiological...
Human subjects are able to prepare cognitively to resist an involuntary movement evoked by a suprathreshold transcranial magnetic stimulation (TMS) applied over the primary motor cortex (M1) by anticipatory selective modulation of corticospinal excitability. Uncovering how the sensorimotor cortical network is involved in this process could reveal d...
Voluntary movement is often perturbed by the external forces in the environment. Because corticospinal (CS) control of wrist muscles during preparation of voluntary movement has been extensively studied without variation in the external forces, very little is known about the way CS control adapts when subjects expect motor perturbations. Here, we s...
Journal: Brain Stimulation - BRAIN STIMUL
When we perform a movement, the movement can be perturbed by external forces in our environment. We need to be able to react very quickly and in an adapted way to these perturbations. Several studies showed that the prior intent of the subject (to resist or not to resist the perturbation) causes modulation of the muscular response approximately 60...