Filtered By:
Source: Clinical Neurophysiology
Education: Study

This page shows you your search results in order of date. This is page number 4.

Order by Relevance | Date

Total 151 results found since Jan 2013.

EP 4. Recruitment of premotor cortices in subacute stroke patients – A longitudinal fMRI study
In order to investigate changes in functional representation of hand movement after stroke we used functional magnetic resonance imaging (fMRI) during an active motor task of the affected hand before and after a three week comprehensive motor training.
Source: Clinical Neurophysiology - August 5, 2016 Category: Neuroscience Authors: U. Horn, S. Roschka, K. Eyme, A.D. Walz, T. Platz, M. Lotze Source Type: research

EPV 19. Dissociable regions for recognition and execution of conceptual and spatio-temporal action characteristics in acute stroke patients
The ability to recognize and respond to actions performed by others is fundamental for a wide range of activities involving social interactions. However, despite an enormous number of functional imaging studies, a precise delineation of the brain regions crucial for distinct aspects of action recognition has remained elusive. Moreover, the degree of overlap between regions involved in active action performance is controversial.To elucidate these issues, 98 acute stroke patients (68 male, age meanSD, 6513 years) were examined in the acute period after stroke (meanSD 4.42 days after symptom onset).
Source: Clinical Neurophysiology - August 5, 2016 Category: Neuroscience Authors: M. Martin, A. Dressing, L. Beume, T. Bormann, I. Mader, M. Rijntjes, C.P. Kaller, C. Weiller Source Type: research

EP 121. Motor sequence learning in patients with limb apraxia – The effects of long-term training
Recent studies show that limb apraxia is often not recognized as a higher motor impairment in patients suffering from a stroke. Because it is adversely affecting every-day life and personal independence, a successful rehabilitation of apraxia is critical for personal well-being (Cappa et al., 2005; Dovern et al., 2012). Yet, evidence of an effective treatment approach with long-lasting effects and generalization to untrained actions is still missing (Binkofski and Klann, 2013; Dovern et al., 2011).
Source: Clinical Neurophysiology - August 5, 2016 Category: Neuroscience Authors: S. Reitze, M. Heister über, A. Karni, C. Gal, J. Doyon, B.R. King, J. Classen, J.- J. Rumpf, G. Buccino, J. Klann, F. Binkofski Source Type: research

Functional and structural cortical characteristics after restricted focal motor cortical infarction evaluated at chronic stage – indications from a preliminary study
Motor disability is among the most common consequences of ischemic stroke. Following focal ischemic damage, the reorganization of the cortical functions begins (Ward and Cohen, 2004). Some initial improvement after the acute phase occurs due to resolution of the perilesional edema and recovery of other tissue functions surviving the ischemia (Hallett, 2001). However, it is thought that the long-term recovery occurs primarily due to brain plasticity through functional and structural reorganization (Hallett, 2001; Hodics et al., 2006).
Source: Clinical Neurophysiology - May 24, 2016 Category: Neuroscience Authors: Petro Julkunen, Sara Määttä, Laura Säisänen, Elisa Kallioniemi, Mervi Könönen, Pekka Jäkälä, Ritva Vanninen, Selja Vaalto Source Type: research

Reply to “The usefulness of diffusion tensor tractography for estimating the state of corticobulbar tract in stroke patients”
Diffusion tensor imaging (DTI) is an advanced magnetic resonance imaging technique used to demonstrate the structural integrity of white matter tracts. DTI has a unique advantage in visualizing the neural fiber tracts in the proximity of cerebral infarction by use of constructing three-dimensional images of white matter fiber tracts (Mori and van Zijl, 2002). A diffusion tensor tractography (DTT) study by Dr Jang investigated the injury of the corticobulbar tract (CBT) in stroke patients with dysarthria, and suggested that the evaluation of the CBT using DTT provides important information in stroke patients with bulbar sym...
Source: Clinical Neurophysiology - May 3, 2016 Category: Neuroscience Authors: Juan Du, Fang Yang, Xinfeng Liu Tags: Letter to the Editor Source Type: research

The usefulness of diffusion tensor tractography for estimating the state of corticobulbar tract in stroke patients
The development of diffusion tensor tractography (DTT), which is derived from diffusion tensor imaging data, has enabled the reconstruction and estimation of the corticobulbar tract (CBT) in the live human brain (Mori et al., 1999). As a result, injury of the CBT following stroke could be estimated three dimensionally using DTT (Kwon et al., 2016). Several studies using DTT have reported on the detailed anatomical location of the CBT in the subcortical white matter, and this knowledge has enabled clinicians to presume injury of the CBT in stroke patients without DTT for the CBT (Pan et al., 2012; Yim et al., 2013).
Source: Clinical Neurophysiology - May 3, 2016 Category: Neuroscience Authors: Sung Ho Jang, So Min Shin Tags: Letter to the Editor Source Type: research

In-depth performance analysis of an EEG based neonatal seizure detection algorithm
Full term neonates with neurological conditions such as hypoxic-ischaemic encephalopathy (HIE), stroke and meningitis are at high risk of developing seizures. There is accumulating evidence from animal models (Wirrell et al., 2001) and human studies (Glass et al., 2009) that neonatal seizures impose additional damage to the brain above and beyond the underlying aetiology. Prompt detection and treatment of seizures is therefore of paramount importance to optimize developmental outcome.
Source: Clinical Neurophysiology - February 20, 2016 Category: Neuroscience Authors: S. Mathieson, J. Rennie, V. Livingstone, A. Temko, E. Low, R.M. Pressler, G.B. Boylan Source Type: research

Comparison of brainstem reflex abnormalities in patients with multiple sclerosis, Behçet and stroke and its topodiagnostic value
Our current understanding of brainstem reflex physiology comes chiefly from the classic anatomical–functional correlation studies that traced the central circuits underlying brainstem reflexes and establishing reflex abnormalities as markers for specific areas of lesion. Our aim is to investigate the correlation between the brainstem reflex abnormalities and lesion localization in three different diseases with brainstem lesions.
Source: Clinical Neurophysiology - February 11, 2016 Category: Neuroscience Authors: R. Inan, F. Yavlal, M.E. Kiziltan, G. Kiziltas, S. Saip, U. Uygunoglu Source Type: research

ID 99 – Functional connectivity study on repetitive transcranial magnetic stimulation for central post-stroke pain
This study aimed to investigate functional connectivity specific to CPSP and functional connectivity alteration associated with pain relief by rTMS.
Source: Clinical Neurophysiology - February 11, 2016 Category: Neuroscience Authors: K. Hosomi, T. Shimizu, T. Maruo, Y. Watanabe, H.M. Khoo, N. Tani, Y. Goto, H. Kishima, T. Yoshimine, Y. Saitoh Source Type: research

ID 30 – Influence of M1 hand knob ischemic stroke on motor activation: An fMRI study in chronic stage
To evaluate whether stroke lesion focused on the primary motor cortex hand knob re-localizes the hand motor area in the affected hemisphere.
Source: Clinical Neurophysiology - February 11, 2016 Category: Neuroscience Authors: E. Kallioniemi, M. Könönen, L. Säisänen, P. Julkunen, R. Vanninen, P. Jäkälä, S. Määttä, S. Vaalto Source Type: research

ID 452 – Sympathetic skin response in stroke patients
Sympathetic dysfunction could lead to life-threatening complications. The aim of this study was to investigate the relationship between the size, location, nature of the lesion, and the sympathetic skin response (SSR).Thirty patients with stroke and 30 healthy subjects were included in this study. All patients were investigated by using brain imaging and clinical scales. SSRs were elicited on four extremities in both groups. Latency and amplitude values of the responses were measured. In the patient group, SSR were analyzed both in the early (in the first month) and the late stages (one month later first recording) of the patients.
Source: Clinical Neurophysiology - February 11, 2016 Category: Neuroscience Authors: H. Erdem Tilki, G. Oztas Source Type: research

ID 306 – Mirror-box training in healthy subjects and a patient with hemiparesis
Mirror therapy (MT) is an approach of neurorehabilitation improving motor functions after stroke. MT represents a mental process by which an individual rehearses a given motor action by reflecting movements of the non-paretic side in a mirror as if it were the affected side. Although a number of small-scale research studies have shown encouraging results, there is no clear consensus about the effectiveness of the therapy. The aim of this study is to investigate objective changes in EEG after MT.
Source: Clinical Neurophysiology - February 11, 2016 Category: Neuroscience Authors: R. Rosipal, N. Porubcová, B. Cimrová, I. Farkaš Source Type: research

ID 381 – Functional neuroimaging study of patients with disorders of consciousness. Value of default mode network (DMN)
Resting FMRI allows estimation the neural networks activation, connectivity in the brain with present or absent evidence of consciousness. Patients with disorders of consciousness (DOC) show selective activation of the default mode network (DMN) as consciousness level increases. The study aim was to evaluate the DMN activation parameters in patients with unresponsive wakefulness syndrome (UWS) and minimal consciousness state (MCS). Material and methods: 4 patients with DOC: 1-anoxic, 1-traumatic, 1-hemorrhagic stroke, 1-acute disseminated encephalomyelitis.
Source: Clinical Neurophysiology - February 11, 2016 Category: Neuroscience Authors: L. Legostaeva, E. Zmeykina, E. Kremneva, A. Poydasheva, A. Chervyakov, D. Sergeev, I. Sychev, J. Ryabinkina, N. Suponeva, M. Piradov Source Type: research

ID 430 – The value of the P300 event related potential in the ischemic stroke
So far, only little is known about the impact of stroke on Event Related Potentials. The aim of this prospective study was to follow-up P300 latencies and choice reaction time in stroke patients and evaluate their changes over a prospective 1-year follow-up period.
Source: Clinical Neurophysiology - February 11, 2016 Category: Neuroscience Authors: M. Dejanovic, V. Ivetic, V. Nestorovic, Z. Milanovic, M. Miric Source Type: research

ID 297 – Changes in finger tapping-related desynchronization during motor stroke recovery
Complex mechanisms underlying stroke recovery and modulations of associated brain activities are still far to be well elucidated. Here we investigated the potential effects of motor stroke recovery on finger tapping-related (FTR) brain dynamics by using high-power EEG with 128 channels and 2048Hz sampling rate. A follow-up study was carried out on six patients with ischemic stroke. Patients were instructed to perform finger tapping with their right or left index finger at a pace determined by a visual cue.
Source: Clinical Neurophysiology - February 11, 2016 Category: Neuroscience Authors: B. Weiss, J. Körmendi, A. Papp, M. Dombovári, Z. Nagy Source Type: research