Dreams recall and auditory evoked potentials during propofol anaesthesia.
It is unclear whether shorter wave latencies of middle-latency-auditory-evoked-potentials may be associated to cognitive function other than nondeclarative memory. We investigated the presence of declarative, nondeclarative and dreaming memory in propofol-anaesthetized patients and any relationship to intraoperatively registered middle-latency-auditory-evoked-potentials. An audiotape containing one of two stories was presented to patients during anaesthesia. Patients were interviewed on dream recall immediately upon emergence from anaesthesia. Declarative and nondeclarative memories for intraoperative listening were assessed 24 h after awakening without pointing out positive findings. Six patients who reported dream recall showed an intraoperative Pa latency less than that of patients who were unable to remember any dreams (P<0.001). A high responsiveness degree of primary cortex was associated to dream recall formation during anaesthesia.
Aceto
Paola
P
Department of Anaesthesiology and Intensive Care, Catholic University of Sacred Heart, Rome, Italy.
Congedo
Elisabetta
E
Lai
Carlo
C
Valente
Alessio
A
Gualtieri
Elisabetta
E
De Cosmo
Germano
G
D000161:Acoustic Stimulation / Q000379:methods; D000293:Adolescent; D000328:Adult; D000368:Aged; D018686:Anesthetics, Intravenous / Q000494:pharmacology* / Q000627:therapeutic use; D004325:Dreams; D005072:Evoked Potentials, Auditory / Q000187:drug effects*; D005260:Female; D006801:Humans; D008297:Male; D011939:Mental Recall / Q000187:drug effects* / Q000502:physiology; D008875:Middle Aged; D015742:Propofol / Q000494:pharmacology* / Q000627:therapeutic use; D011930:Reaction Time / Q000187:drug effects; D018709:Statistics, Nonparametric
D018686:Anesthetics, Intravenous; D015742:Propofol