The DC results in a significant, immediate, and durable improvement of ICP associated with a normalization of cerebral blood flow velocities in most TBI patients with refractory intracranial hypertension.

Patients with MSA and patients with PD recruited different motor networks. Patients with PD preferentially activated cerebellar pathways, possibly to compensate for basal ganglia dysfunction. This was not observed in patients with MSA, probably because of cerebellar dysfunction; other frontoparietal cortical areas were recruited.

Wandering behavior could be facilitated by a specific patterns of cerebral blood flow. Wandering, as a physical activity, could also enhance the recruitment of the cortical network.

Acupuncture is frequently used and in particular for the treatment of pain. One of the cornerstones of its use, at least in Western countries, is the concept of the acupuncture meridian. Yet, their existence has never actually been proven. Recently, a report was published stating that injection of a radiotracer at an acupuncture point allows the visualization of the corresponding meridian in the shape of a radioactive path which is apparent on scintiscans. The present work confirms the appearance of radioactive paths after the injection of a radiotracer at acupuncture points. However, the cross-checks made with the method used (counting the radioactivity of the venous blood, studying radioactivity of the organs which normally take up the tracer, scintiscan study of the complete meridian paths as they are described in traditional Chinese medicine and studying the effect of venous blockade on the observed radioactive paths) show that the radioactive paths in fact correspond to vascular drainage of the radiotracer.

The presence of alien hand syndrome (AHS) is suggestive of the diagnosis of corticobasal degeneration when it develops in a progressive way. Sensory AHS (sAHS) should be distinguished from the motor form described more commonly. The physiopathology of sAHS remains unclear. The aim of this study is to determine cerebral regions involved in sAHS. We compared perfusion single photon emission computer tomography scans of patients with sAHS (n = 3) and without (n = 4). We observed significant decrease of regional cerebral blood flow over the nondominant thalamus in sAHS+ compared to sAHS- patients. This result suggests the involvement of the nondominant thalamus in sAHS.