Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0917801 (insomnia)
 10,606 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The role of presleep cognition in insomnia was studied in normal sleepers and insomniacs with either (1) psychophysiological insomnia, an objective disorder of initiating and maintaining sleep (DIMS), or (2) DIMS without objective findings (subjective insomnia), as defined by two nights' polysomnographic baseline data. During the experimental night in the sleep laboratory, 24 subjects were interviewed at intervals during the presleep/sleep-onset period. Judges' ratings of subjects' spontaneous reports and subjects' responses to questionnaire items were analyzed for cognitive quality. Objective insomniacs had more frequent cognitive activity than the subjective insomniacs. Both insomnia groups reported more negative thoughts than the controls. Cognitive hyperarousal as a factor in objective insomnia was not clearly supported.
Percept Mot Skills 1989 Dec
PMID:Presleep cognitive hyperarousal and affect as factors in objective and subjective insomnia. 262 37

Groups of 12 normal and insomniac male subjects aged 55 to 71 yr. were sleep deprived for 64 hr. In both groups, the sleep loss was preceded by four baseline sleep nights and followed by four recovery nights. Reaction time, immediate recall, sleepiness, and body temperature were measured at approximately 2300, 0115, 0330, 0530, and 0800 during baseline, deprivation and recovery nights. Significant performance or mood differences were not found between the normal and insomniac males on any measure or at any testing period throughout the study. Performance of both groups declined characteristically during sleep loss while subjective sleepiness increased. As in young adults, degraded performance was restored by 8 hr. of recovery sleep. However, subjective sleepiness did not return to baseline levels until early in the second recovery night. It was concluded that chronic insomnia does not result in group performance deficits similar to those seen after chronic sleep loss; and the restorative function of sleep operates as efficiently in older insomniac subjects (who apparently have reduced need to sleep) as in older normal subjects.
Percept Mot Skills 1985 Feb
PMID:Recovery of performance during sleep following sleep deprivation in older normal and insomniac adult males. 398 41

A paradoxical instruction was used to treat a 10-yr.-old boy's complaint of crying when unable to sleep and the daytime equivalent of fearing the public display of crying when failing at sports performances. The instruction resolved both the sleep disturbance and the public crying. The results suggest that, like adults, children may experience anxiety about sleep difficulties and that paradoxical intention may have promise for the treatment of some children's insomnia.
Percept Mot Skills 1985 Aug
PMID:Effects of a paradoxical intervention on a child's anxiety about sleep- and sports-related performance. 404 98

Scales to assess nightmare recall frequency and recalled frequency of insomnia-related disorders (sleep onset, sleep-maintenance problems, unrefreshing sleep, and restless sleep) were administered, together with the Social Readjustment Rating Scale of Holmes and Rahe to 170 part-time undergraduate students (mean age 27.4 yr., 97 men, 73 women), and together with the Life Events Inventory of Tennant and Andrews to another sample of 91 part-time undergraduates (mean age 26 yr., 53 men, 37 women). The time span for which life events and sleep disorders were to be assessed was the previous 6 mo. Pearson rs suggested that the relationships of different types of scores for life events (scores for change, for distress, for amount of control over events, weighted and unweighted scores for negative and positive events) to reports of sleep disorders were mostly weak (the largest coefficient was .29) and nonsignificant. Of all life events measures, negative life events listed on the Readjustment Scale were the most closely associated with reports of sleep disorders; all 14 coefficients involving negative events were significant and in the clinically expected direction. Further research is needed to examine whether the size of correlations between events and sleep disorders is related to factors such as readiness to recall and report negative personal experiences.
Percept Mot Skills 1984 Feb
PMID:Life stress measures and reported frequency of sleep disorders. 671 1

In an attempt to rationalize conflicting sets of data from earlier studies, groups of Type A- and Type B-classified university students were asked to respond to a sleep habits questionnaire that included the items of the Coren Insomnia Scale. As was the case in two earlier studies, we found significant but weak evidence from the Coren scale only that Type A-scoring students experience more sleep problems than Type B scorers. We also found, as in a recent study, a sharp increase in sleep problems among all the students sampled from the frequencies reported by similar groups in 1982.
Percept Mot Skills 1993 Dec
PMID:Type A-B scores and insomnia among college students: a replication and extension of earlier studies. 817 Jul 76

Sleep onset latency was substantially reduced in an experiment for 9 adults when short acoustic stimuli were given in synchrony with the heartbeat compared to a control condition in which the same stimuli were given asynchronously. By the same stimulation technique sleep quality was ameliorated in a group of 10 patients with primary insomnia.
Percept Mot Skills 1996 Feb
PMID:Baroreceptor activity and the induction of sleep. 866 72

This study examined the relationship of sleep characteristics including insomnia with scores on alexithymia in a sample of 171 Japanese working men. Levels of nonrestorative sleep and daytime sleepiness reported on a sleep questionnaire were significantly associated with scores on Depression and Confusion on the Profile of Mood States for Japanese men who had a high mean score on the Toronto Alexithymia Scale.
Percept Mot Skills 1997 Jun
PMID:Sleep characteristics of Japanese working men who score alexithymic on the Toronto Alexithymia Scale. 917 94

Decades of empirical observations have established the validity of actigraphy primarily in individuals without sleep disorders. Methodological problems encountered thus far coupled with the widespread use of actigraphy signal the need for concentrated efforts to establish a consensus regarding scoring procedures. Currently available scoring methods show less reliability in clinical populations. To address these issues two validation studies were conducted: one for individuals without sleep disorders and the other for patients diagnosed with insomnia. The results of these two studies using the Actigraph Data Analysis Software as the scoring method have shown that the described system is fairly precise. It can be used for actigraphs with different features and mode of operation and is applicable to individuals with insomnia. These findings corroborate previous research showing that actigraphy is a valid instrument for assessment of sleep and wakefulness.
Percept Mot Skills 1997 Aug
PMID:The actigraph data analysis software: I. A novel approach to scoring and interpreting sleep-wake activity. 929 79

In this study, we measured the relationship between the consistency of hand use and three symptoms of insomnia, i.e., delayed sleep onset, frequent awakenings during sleep, and trouble returning to sleep after an awakening. For each of these insomnia-related symptoms, university students who were classified as inconsistent in the use of their hands (n = 30) were significantly more likely to report problems than their consistent hand-use peers (n = 30). These data were discussed both in relation to the literature on handedness classification and sleep problems and the emerging literature on consistency of hand use and health-related problems.
Percept Mot Skills 1999 Aug
PMID:Consistency of hand use and sleep problems. 1054

In the last years, actigraphy has been used more often for clinical research and research evaluation of sleep disorders. Compared to polysomnography, actigraphy is cheap and less time-consuming. Actigraphy provides more objective information about sleep than sleep logs. Although the algorithms to score sleep and wake based on motions measured by actigraphy are still being improved, we believe that the role of actigraphy in the clinical evaluation of sleep in insomnia is limited. Instead of using actigraphy to distinguish a wakeful state from sleep in insomnia, we might better use the activity plots which the actigraph provides to get more insight into the physiological hyperarousal or restfulness of insomnia patients.
Percept Mot Skills 2001 Jun
PMID:The use of actigraphy revised: the value for clinical practice in insomnia. 1145 14


1 2 Next >>