The initial activity of a rat placed in novel surroundings (i.e., open field activity) has been taken as an indicator of its emotional state. We have investigated the effects of immediately antecedent stress upon open field activity in comparison with basal (i.e., unstressed) activity, and additionally, the effects of a history of chronic stress upon the above behavioral patterns. Acute exposur...

There is increasing evidence that schizophrenia is associated with an attentional or information processing deficit or both. These "early deficit" theories challenge the position that schizophrenia is primarily a disorder of thinking and higher cognitive operations. A tachistoscopic backward masking task was applied in matched groups of 20 schizophrenic, 20 schizotypal, and 20 depressive psychi...

In his work as an executive coach, psychotherapist Kets de Vries sometimes comes across bosses with mental demons. The four kinds he encounters most frequently are pathological narcissists, who are selfish and entitled, have grandiose fantasies, and pursue power at all costs; manic-depressives, who can leave a trail of emotional blazes behind them; passive-aggressives, who shy away from confron...

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 bet...

Complexity of EEG (omega), a global measure reflecting degree of spatial synchronization, was computed for whole night recordings of sleep EEG of 10 healthy volunteers, 9 males and 1 female (age 21-53) and 6 depressive patients, 5 males and 1 female (age 23-64). Sleep was scored visually in 20 s epochs, omega was calculated in 2.5 s segments and the median from 8 segments (20 s) was calculated....

The degree of hypothalamic-pituitary-adrenal (HPA) axis dysregulation in depressed patients with schizoaffective disorder was compared to that seen in patients with major depressive disorder with and without delusional features. The frequency of nonsuppression to dexamethasone was similar for all three diagnostic groups. Maximum postdexamethasone plasma cortisol was greater for delusional depre...

Cortical glutamate/glutamine (Glx) metabolism seems to be affected by a major depressive disorder. Recently, a Glx deficit was detected by proton magnetic resonance spectroscopy (1H-MRS) in the bilateral anterior cingulum of depressives. The aim of this study was to assess the effect of successful electroconvulsive therapy (ECT) on Glx levels in the anterior cingulum. The left anterior cingulum...

As a part of the basis for planning of prevention of suicide and suicide attempt, 154 suicidal ideators registered between 1988 and 1991, were recruited for an analysis of their psychiatric morbidity pattern. 59.74% had depression. The representation of substance abuse disorder and psychoses were 9.74% each 7.14% had neurotic disorders. 9.09% had bipolar affective disorder and 0.65% had normal ...

The Rorschachs of 59 effected suicides and 31 attempted suicides, all of which were collected within a period of 60 days prior to the critical event were categorized in terms of method used, and subjected to a computer scan to determine if any constellation of variables occurred with a greater frequency than in the protocols of three control groups, comprised of inpatient depressives, inpatient...

Serum potassium levels were measured before and during electroconvulsive therapy, in patients anaesthetized with methohexitone and thiopentone. In no case was any dangerous potassium level recorded. In patients anaesthetized with methohexitone, serum potassium levels showed a significant rise following the injection of suxamethonium and an induced convulsion. Patients anaesthetized with thiopen...