Isotopes have been used for the detection and location of intracranial lesions since 1948 (Moore, 1948). In 1947 Moore demonstrated that fluorescein injected intravenously was selectively absorbed by gliomas (astrocytomas) and other tumours. When an ultraviolet light was shone on the exposed brain, a glioma reaching the surface reflected a different colour-yellow -from the remainder of the brai...

Color plays an important part in human activities, and it also affects circadian cycle the decision making process. Therefore, is to investigate judgment under different color of illumination, especially because perception subjective. In this study, we developed required instrumentation control red (R), green (G), blue (B), amber (A) colored light emitting diode (LED) lamp for carrying out magn...

We studied the neural correlates of target omissions in five patients with right hemisphere damage and varying signs of left spatial neglect. Benefiting from the high temporal resolution of magneto-encephalography, we directly compared brain regional synchrony events of detected and omitted left-sided targets. Results showed that before stimulus presentation, a low beta synchronization activity...

Glucose levels in 154 random specimens of lumbar cerebrospinal fluid, normal as regards cell and protein content, were estimated by the glucose-oxidase method and a mean value of 60.5 mg./100 ml. (S.D. 7.3) was obtained. In 33 fasting patients subject to air encephalography the mean cerebrospinal fluid (C.S.F.) glucose level was 56.5 mg., and mean blood glucose level 65.5 mg. with an average C....

Identifying sources of the apparent variability in non-stationary scenarios is a fundamental problem in many biological data analysis settings. For instance, neurophysiological responses to the same task often vary from each repetition of the same experiment (trial) to the next. The origin and functional role of this observed variability is one of the fundamental questions in neuroscience. The ...

Introduction ALTHOUGH the majority of patients who sustain a closed head injury appear to make a complete and satisfactory recovery, some are left with residual disabilities, which interfere with their well-being and their adjustment to society. It is known that in such cases permanent structural changes often occur in the brain, but clinically it is difficult to ascertain their severity and ex...