Introduction: Electrodermal activity (EDA) is an early physiological index and the subject of constant interest, in spite of the bad reputation attached to "lie detectors". This interest is expected to increase in the future, following the development of research related to the neurobiological aspect of emotions of which it is an index. Recent data provided by functional cerebral imaging has added to the significance of this index and should result in further interest.
View Article and Find Full Text PDFIn his seminal paper, Donders proposed that Choice reaction time (RT) tasks differ from Go/No-go RT tasks only by the insertion of a response decision operation. We evaluated this possibility by comparing the time course of Laplacian-transformed ERPs, recorded over the primary (M1s) and supplementary motor areas (SMAs) in a Choice and in a Go/No-go task. Laplacian-transformed ERPs showed that a component that develops over the SMAs during the RT of Choice tasks vanishes in our Go/No-go task.
View Article and Find Full Text PDFIntroduction: Since 2003, intravenous thrombolysis with rt-PA for stroke victims has been largely developed in the military hospital of Toulon. We report the results of our practice and compare them with the literature. We also sought to identify predictive factors of favorable outcome after thrombolysis.
View Article and Find Full Text PDFWe present the case of a young adult who developed acute encephalopathy with severe status epilepticus and rapid deterioration to vegetative state and death within 6 weeks. Although the clinical picture, MRI and EEG findings were atypical, the hypothesis of subacute sclerosing panencephalitis (SSPE) was suggested by markedly increased intrathecal IgG synthesis in the cerebrospinal fluid, and diagnosis was confirmed by the presence of high antimeasles antibodies in cerebrospinal fluid and brain biopsy findings. Acute SSPE is an exceptionally rare and little-known form of SSPE with protean symptomatology, and this case is to our knowledge the first observation of SSPE presenting with status epilepticus in adults.
View Article and Find Full Text PDFAnn Readapt Med Phys
February 2006
Objective: To specify, in cognitive processing leading to an action, the localization of difficulties in attention following severe, traumatic brain injury.
Method: Stimulus-locked and response-locked event-related potentials were recorded during a Stroop task in 25 patients with traumatic brain injury and 25 control subjects approximately 4 months after the accident. The latency and amplitude of the waves were compared between the two groups and correlated with clinical data.