Abstract
Insomnia is a symptom, a syndrome and a comorbid disorder. Its diagnosis relies on subjective reports from the afflicted individual and is defined as difficulties in initiating sleep, maintaining sleep, waking up too early or non-restorative sleep. However, insomnia and especially, primary insomnia, has received much attention in insomnia research with the use of objective measures. Insomnia, its peculiarities, most frequent subtypes and two most prominent models will first be briefly introduced. Then, insomnia will be reviewed according to results obtained with the use of neurophysiological measures as basic/traditional as polysomnography to more sophisticated ones such as power spectral analysis, neuroimaging, cyclic alternating patterns and event-related potentials. In addition, a review of the discrepancies between subjective and objective reports of cognitive alterations through neuropsychological testing is offered. The need to combine measures is then highlighted in conclusion.
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Abbreviations
- APA:
-
American Psychiatric Association
- ARAS:
-
Ascending Reticular Activating System
- BZD (BZDs):
-
Benzodiazepine (Benzodiazepines)
- CAP:
-
Cyclic Alternating Pattern
- CBT-I:
-
Cognitive-Behavioral Therapy for Insomnia
- CNS:
-
Central Nervous System
- EEG:
-
Electroencephalogram
- EKG:
-
Electrocardiogram
- EMG:
-
Electromyogram
- EOG:
-
Electrooculogram
- ERPs:
-
Event-Related Potentials
- FFT:
-
Fast Fourier Transforms
- fMRI:
-
Functional Magnetic Resonance Imaging
- GABA:
-
Gamma-aminobutyric acid
- LORETA:
-
Low Resolution Electromagnetic Tomography Analysis
- N100 (N1):
-
Negative wave peaking at about 100 ms after stimulus onset
- N350:
-
Negative wave peaking at about 350 ms after stimulus onset
- NCAP:
-
Non-Cyclic Alternating Pattern
- NREM:
-
Non Rapid Eye Movement
- P50:
-
Positive wave peaking at about 50 ms after stimulus onset
- P200 (P2):
-
Positive wave peaking at about 200 ms after stimulus onset
- P300 (P3):
-
Positive wave peaking at about 300 ms after stimulus onset
- PET:
-
Positron Emission Tomography
- PSA:
-
Power Spectral Analysis
- PSG:
-
Polysomnography
- REM:
-
Rapid Eye Movement
- SPECT:
-
Single-Photon-EmissionComputed Tomography
- SWA:
-
Slow Wave Activity
- SWS:
-
Slow Wave Sleep
- TMS:
-
Transcranial Magnetic Stimulation
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Bastien, C.H. Insomnia: Neurophysiological and NeuropsychologicalApproaches. Neuropsychol Rev 21, 22–40 (2011). https://doi.org/10.1007/s11065-011-9160-3
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DOI: https://doi.org/10.1007/s11065-011-9160-3