ELECTRODIAGNOSTIC STUDIES OF NERVOUS SYSTEM DISORDERS: EEG, EVOKED POTENTIALS, AND EMG
ELECTROENCEPHALOGRAPHY Print Section Listen The electrical activity of the brain (the electroencephalogram [EEG]) is easily recorded from electrodes placed on the scalp. The potential difference between pairs of electrodes on…
TECHNIQUE OF LUMBAR PUNCTURE
INTRODUCTION Print Section Listen In experienced hands, lumbar puncture (LP) is usually a safe procedure. Major complications are extremely uncommon but can include cerebral herniation, injury to the spinal cord…
Reinforcement and Addictive Disorders
KEY CONCEPTS Print Section Listen The defining feature of addiction is compulsive, out-of-control drug use, despite negative consequences. Addictive drugs induce pleasurable states or relief from distress, thus motivating repeated…
VIDEO ATLAS OF THE DETAILED NEUROLOGIC EXAMINATION
INTRODUCTION Print Section Listen The comprehensive neurologic examination is an irreplaceable tool for the efficient diagnosis of neurologic disorders. Mastery of its details requires knowledge of normal nervous system anatomy…
APPROACH TO THE PATIENT WITH NEUROLOGIC DISEASE
INTRODUCTION Print Section Listen Neurologic diseases are common and costly. According to estimates by the World Health Organization, neurologic disorders affect over 1 billion people worldwide, constitute 12% of the…
THE NEUROLOGIC SCREENING EXAM
INTRODUCTION Print Section Related posts: GAIT AND BALANCE DISORDERS SEIZURES AND EPILEPSY CLASSIFICATION OF THE SPINOCEREBELLAR ATAXIAS BIOLOGY OF NEUROLOGIC DISEASES HIV NEUROLOGY MENINGITIS, ENCEPHALITIS, BRAIN ABSCESS, AND EMPYEMA
Neurodegeneration
KEY CONCEPTS Print Section Listen Neurodegenerative diseases, of which Alzheimer disease and Parkinson disease are the most common, are a large and diverse group of neurologic disorders characterized by death…
Signal Transduction in the Brain
KEY CONCEPTS Print Section Listen Signal transduction refers to the processes by which signals between cells carried by neurotransmitters, hormones, trophic factors, and cytokines are converted into biochemical signals within…
Schizophrenia and Bipolar Disorder
KEY CONCEPTS Print Section Listen Schizophrenia is characterized by psychotic symptoms such as hallucinations and delusions (often referred to as “positive” symptoms), negative or deficit symptoms such as lack of…
