Total or partial loss of the ability to recognize familiar objects or people through sensory stimuli; results from organic brain damage.
A localized dilation of the wall of a blood vessel, usually caused by atherosclerosis, hypertension, and less commonly by a congenital weakness in a vessel wall.
Abnormal neurologic condition in which language function is defective or absent because of an injury to certain areas of the cerebral cortex.
Sensation, as of light or warmth, that may precede the onset of a migraine or an epileptic seizure. An epileptic aura may be psychic, or it may be sensory with olfactory, visual, auditory, or taste hallucinations.
deep brain stimulation (DBS)
Involves placing an electrode in either the thalamus, globus pallidus, or subthalamic nucleus and connecting it to a generator placed in the upper chest (like a pacemaker).
Difficult, poorly articulated speech resulting from interference in the control over the muscles of speech.
Glasgow coma scale
A quick, practical, standardized system for assessing the degree of conscious impairment in the critically ill; also used for predicting the duration and ultimate outcome of coma, primarily in patients with head injuries.
Guillain-Barre syndrome (GBS)
An acute, rapidly progressing, and potentially fatal form of polyneuritis. It results in widespread inflammation and demyelination of the peripheral nervous system.
Involuntary, rhythmic movement of the eyes. Oscillations may be horizontal, vertical, rotary, or mixed.
Sensation pertaining to stimuli originating from within the body regarding spatial position and muscular activity stimuli or to the sensory receptors that those stimuli activate. This sensation gives one the ability to know the position of the body without looking at it and the ability to "know objectively the sense of touch."
A abnormal condition of the blood vessels of the brain characterized by hemorrhage into the brain; formation of an embolus or thrombus resulting in ischemia of the brain tissues normally perfused by the damaged vessels. The sequelae depend on the location and extent of ischemia.