Category: Rx Neurology (A – Z)

Palatal myoclonus, also known as palatal tremor, is a rare movement disorder characterized by involuntary, rhythmic contractions of the soft palate muscles (the roof...

Athetoid hand refers to a movement disorder characterized by slow, involuntary, writhing motions of the fingers, hands, and sometimes the forearms. These movements are...

Isolated hemichorea is a rare neurological movement disorder characterized by involuntary, irregular, non-rhythmic, and “dance-like” movements affecting only one side of the body. Unlike...

Sensorimotor stroke is a form of stroke in which weakness or clumsiness (motor loss) and numbness, tingling, or loss of position sense (sensory loss)...

Ataxic-hemiparesis is a lacunar stroke syndrome in which weakness on one side of the body (hemiparesis) is accompanied by in-coordination of the same limbs...

A pure sensory stroke (PSS) is a very small (“lacunar”) stroke that damages one of the narrow, deep-lying arteries that feed the relay stations...

Acute Motor-Sensory Axonal Neuropathy (often shortened to AMSAN) is one of the rarer, more aggressive “axonal” forms of Guillain-Barré syndrome (GBS). In AMSAN, the...

Facial onset sensory and motor neuronopathy (FOSMN) is a rare, slowly progressive neurological disorder in which sensory disturbances—typically in the face—are followed by motor...

Isolated Exploding Head Syndrome (EHS) is a benign sensory parasomnia. People with EHS suddenly hear a very loud noise—like an explosion, gunshot, or thunder—right...

Transient Aura-Related Dyschiria is a rare neurological phenomenon in which a person temporarily loses the ability to recognize or correctly localize sensations to one...

Apperceptive Visual Agnosia is a neurological disorder in which individuals, despite having intact basic vision (visual acuity, color perception, and field of view), cannot...

Stereognosis disconnection—commonly termed astereognosis—is the inability to identify and appreciate the three‐dimensional form of an object through touch alone, despite intact basic sensory modalities...

Two-point discrimination (TPD) is the smallest distance at which a person can feel two separate touches instead of one. It is a practical test...

Tactile extinction is a neuropsychological phenomenon in which a person fails to perceive a touch stimulus on one side of the body when two...

Finger agnosia is a neuropsychological condition in which a person loses the ability to identify, name, or distinguish their own fingers (or those of...

Agraphesthesia is a neurological deficit characterized by an individual’s inability to recognize symbols, letters, or numbers traced on the skin, most commonly on the...

Auditory Disconnection Syndromes are a group of rare neurological disorders in which the brain’s ability to integrate or interpret sound is disrupted. Unlike peripheral...

Visual Disconnection Syndromes are neurological conditions arising when communication between the brain’s visual processing areas and other regions (such as language, motor, or memory...

Alexia without agraphia, often called “pure alexia,” is a rare reading disorder in which a person loses the ability to read written words, yet...

Ideomotor disconnection, often termed ideomotor apraxia, is a neurological condition in which a person understands the intention behind a movement or gesture but cannot...