Adult Neurology Glossary

Reduced level of consciousness between normal alertness and stupor, with delayed responses to stimuli.

Abnormal proteins found in cerebrospinal fluid that suggest inflammatory neurological conditions, particularly multiple...

Persistence or recurrence of visual images after the stimulus has been removed, often indicating posterior cerebral path...

Speech errors involving the substitution of incorrect words or sounds, commonly seen in aphasia syndromes.

Sudden onset and short duration, typically describing neurological symptoms that come and go abruptly.

Inappropriate repetition of words, phrases, or actions despite changed circumstances, indicating frontal lobe dysfunctio...

Speech error involving substitution, addition, or omission of speech sounds, typically seen in conduction aphasia or Bro...

Nuclear imaging technique using radioactive tracers to measure brain metabolism and function.

Relating to the period immediately following a seizure, characterized by altered consciousness, confusion, or neurologic...

The unconscious awareness of body position and limb location in space, mediated by specialized receptors in muscles, joi...

Selective inability to recognize faces despite intact visual processing and object recognition abilities.

Involuntary, excessive, and inappropriate laughing or crying episodes unrelated to underlying emotional state. Results f...

Upper motor neuron dysfunction affecting bulbar muscles, causing dysarthria, dysphagia, and emotional lability.

Non-epileptic episodes that mimic epileptic seizures but lack the electrical brain activity of true seizures. Now prefer...

A motor disorder characterized by velocity-dependent increase in muscle tone and exaggerated tendon reflexes due to uppe...

Single photon emission computed tomography imaging that measures cerebral blood flow and brain function.

Medical emergency involving prolonged or repeated seizures without recovery, requiring immediate treatment.

A minimally invasive neurosurgical procedure using 3D coordinates to precisely target brain lesions for tissue sampling.

Precise, high-dose radiation therapy delivered to small brain targets using stereotactic guidance systems.

Progressive cavity formation within the spinal cord, typically causing dissociated sensory loss and motor weakness.

Late-onset movement disorder caused by prolonged use of dopamine-blocking medications.

Microtubule-associated protein that forms pathological aggregates in Alzheimer's disease and other tauopathies.

Temporary weakness following a seizure that resolves within hours to days.

Sudden onset of severe anterograde amnesia lasting hours, with preserved consciousness and personal identity. A benign c...