MMPI-2 clinical scale differences between dysthymia and major depression.

Though dysthymia is considered less severe and more chronic than major depressive disorder, it is unclear whether the two disorders are truly different. In this study, MMPI-2 scales of 21 patients with dysthymia and 30 patients with major depressive disorder were compared. The average scores on Scales 2, 4, 6, 7, and 8 were in the clinical range for both groups. However, sizable differences between the two groups were found for Scale 1 and Scale 3. Smaller but reliable differences were found for Scale 2 and mean clinical scale T score with major depressives scoring higher on all of these measures. Results indicate that not only is major depressive disorder more severe than dysthymia, but also contains more physical/somatic symptoms than dysthymia.

Presleep cognitive hyperarousal and affect as factors in objective and subjective insomnia.

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.

Countercontrol treatment of sleep-maintenance insomnia in relation to age.

We administered countercontrol behavioral therapy for sleep-maintenance insomnia to 34 insomniacs--ranging in age from 35 to 78 years--in small groups. Twenty-two subjects received immediate and 12 received delayed treatment. Three self-report measures of sleep disruption were collected on daily sleep diaries at baseline, termination of treatment, 1-month follow-up, and 12-month follow-up. Although amount of time awake at night was correlated with age (r = .50), response to treatment was not. Even though older people experienced more time awake after sleep onset prior to treatment, they were able to profit from therapy as well as the younger insomniacs. Countercontrol therapy reduced the sleep complaint for the total group by about 30% at the end of treatment, with gradual improvement continuing through a 4-week follow-up. Nevertheless, it appears that sleep-maintenance insomnia may be more difficult to treat than sleep-onset problems.

Sexual dysfunction in diabetic women.

This study examined sexual dysfunction in diabetic women. Eighty-one insulin-treated diabetic women were interviewed and administered standardized questionnaires. Using criteria derived from the Diagnostic and Statistical Manual of Mental Disorders (3rd ed.) (DSM-III; American Psychiatric Association, Washington, D.C., 1980), 38 (47%) of the women were diagnosed with sexual dysfunction and 43 (53%) did not report sexual problems. The more frequently reported sexual problems were inhibited sexual excitement, inhibited sexual desire, and dyspareunia. Diabetic women with sexual dysfunction were more depressed, more stereotyped in their sex-role definitions, and less satisfied in their sexual relationships than those without sexual dysfunction. The two groups did not differ in metabolic control, insulin dose, duration of diabetes, or frequency of diabetic complications (e.g., neuropathy, etc.). Results suggest that diabetes may be associated with inhibited sexual excitement and dyspareunia in women. Both psychological and physiological concomitants of sexual dysfunction in diabetic women should be considered in diagnostic and treatment programs.

MMPI differences among mild and severe insomniacs and good sleepers.

Past research has attempted to delineate personality differences between insomniacs and good sleepers but has failed to control for type of insomnia or severity of the disorder. The purpose of this study was to compare MMPI scores of mild and severe sleep onset insomniacs with a control group of noninsomniacs . Results demonstrated that sleep onset insomniacs, regardless of degree of severity, differed significantly from noninsomniacs ; and that mild and severe insomniacs differed from each other on only one MMPI scale.

Sleep EEG in depression.

Depression is a common psychiatric disorder with sleep disturbance as a concomitant symptom. This paper selectively reviews the earlier, more global research and more recent studies with improved methodologies. Research has shown that EEG sleep changes (in particular, REM) can be used as an aid in differential diagnosis of depression and possibly as a way of treatment. It is speculated that an ultradian cycle disruption involving REM sleep mechanisms is related to primary depression.

Personality patterns of adolescent poor and good sleepers.

To determine whether poor sleepers have a unique personality constellation significantly different from that of good sleepers, a sample of 162 emotionally disturbed adolescent poor sleepers was compared to a sample of 153 emotionally disturbed adolescent good sleepers on standardized personality instruments. Poor sleepers were found to have a high incidence of neurotic psychopathology with personality patterns characterized by depression, fearfulness, inhibition, anxiety, and rumination. In contrast, good sleepers showed quasi-healthy and/or characterological patterns. While this study does not resolve cause and effect relationships, it does establish a highly significant relationship between neuroticism and sleep disturbance for adolescent boys and girls, and also demonstrates a similarity of personality dynamics and patterns between adult and adolescent samples of patients with sleep disturbances.