ABSTRACT
This chapter discusses the awakening condition following sleep-utterance and the control without muscle activity and utterance most closely resemble the categories of “sleep-utterance” and “silent sleep”. The results described support the hypothesis that the content and quantity of sleep mentation following non-rapid eye movement (NREM) sleep-utterance is essentially similar to that occurring during NREM silent sleep with one exception: After sleep-utterance, it is significantly more probable that the subject will remember mentation in which he was actively vocalizing in an imagined sleep experience. An analysis of the general content of mentation reports elicited immediately after NREM-associated utterance would reveal no significant differences from reports elicited from NREM “silent” sleep, i.e., sleep without proximate sleep-vocalization. The data were obtained from the sleep-speeches and mentation reports of 23 of those 28 subjects who participated in the study on the degree of concordance between sleep-utterance and associated wakeful mentation.
