The Effect of Rhythmic Optical Stimulation on Temporal Parameters of Human Sensorimotor Response and Their Relation to the Spectral Characteristics of the Initial EEG.

The effect of optical stimulation at a frequency of 10 Hz (OS) on temporal parameters of sensorimotor activity in healthy subjects (n=32) was studied. The expression of the activation response was determined by the ratio of spectral power values (SPα2, μV) of the high frequency (10-13 Hz) subrange of the α-rhythm of the initial EEG with closed and opened eyes and the frequency of the maximum α-peak (IAPF). A test for simple motor reaction time was performed under normal and OS conditions.

Symptomatic lower limb varices secondary to Castleman's disease.

Although lower limb varices are very frequent, their association with Castleman's disease is extremely rare. We report a case of Castleman's disease involving the right inguinal lymph nodes with subsequent development of the symptoms caused by the compression of the great saphenous vein's gulf. The patient underwent surgical extirpation of the right inguinal mass, which successfully eliminated all the symptoms.