Sleep spindles are burst-like waves seen in the electroencephalogram of the brain while sleeping. International Federation of Societies for electroencephalography and Clinical Neurophysiology (IFSECN) is a group of sinusoidal waves that are characterized by a progressive increase and a gradual decrease in the amplitude.
Sleep spindles depict the strength and malleability of the thalamocortical circuits that represent the individual cognitive profile. Abnormality in the pattern or appearance of sleep spindles is suggestive of cognitive decline and behavioral or psychiatric health issues.
