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Query: UMLS:C0011570 (depression)
 172,036 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Two studies investigated factors believed to influence the retention of acquired fear in rats. The results show clearly that the lack of forgetting over 24-hr interval reported by previous investigators is due to a depression of performance on the immediate test (3-min retention interval) resulting from the procedure of not handling the rats during conditioning but then handling them on every trial during the retention test. In accord with the McAllister's interpretation of related results, the depression of performance after short retention intervals may be due to a lack of generalization from training to the testing situation. As the retention interval is lengthened, the amount of generalization increases and escape performance improves on a relative basis. The nature of the retention function may be severely distorted by selection of an inappropriate paradigm for its evaluation.
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PMID:Stimulus and procedural determinants of the forgetting of conditioned fear. 47 35

The influence of age and number of treatments on memory impairment was studied in depressed patients after a series of convulsive treatments: bilateral ECT, unilateral ECT on the nondominant hemisphere, and fluorothyl convulsive therapy. Before and after the completed convulsive therapy course the patients were tested with a memory test battery and the symptoms rated with a depression scale. Before treatment older age-groups had decreased ability to learn, but their post-treatment forgetting score was not significantly higher than in other age-groups. An increase in the number of ECTs did not seem to correlate with the degree of memory impairment. The conclusion of the present study is that age (up to 65) and the number of ECTs (up to 10) have no apparent influence on memory impairment after electroconvulsive therapy.
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PMID:Memory impairment after convulsive therapy. Influence of age and number of treatments. 88 90

This study investigated the relationship between several aspects of memory self-report, objective memory, attitude toward intellectual aging, self-rated health, and self-rated depression in young and older adults. Participants completed a self-report depression scale, and then rated their discomfort with eight categories of everyday forgetting and their attitudes toward intellectual aging. One week later, they rated how frequently they experience the same categories of forgetting, and then completed a battery of objective memory tests analogous to those categories. Ten days later, they rated their willingness to participate in both memory improvement classes and nonmemory classes. Older adults reported significantly more frequent failures but less discomfort with the failures than the young adults. Frequency, discomfort, and self-reported depression were all positively correlated in the older group, but not the young group. Young and old adults were equally positive about participating in memory classes, which both age groups preferred to nonmemory classes; the correlation between willingness to participate in memory classes and objective memory approached significance in the young, but not in the old. Attitude toward intellectual aging was correlated with frequency of and discomfort with forgetting in the older group.
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PMID:Dimensions of self-report about everyday memory in young and older adults. 160 18

Current knowledge of cognitive dysfunction in Parkinson's disease (PD) has largely been obtained from studies of chronically treated patients in whom effects of disease chronicity, treatment, depression and dementia are confounding factors. Studies of untreated patients have examined few cognitive domains and relationships between cognition, depression and motor disability have been incompletely explored. Accordingly, we studied 60 consecutive patients with newly diagnosed, untreated, idiopathic PD and 37 matched, healthy control subjects; no subject had clinical dementia or depression. All subjects received tests of specific processes of memory and cognition, including working memory, verbal and non-verbal short- and long-term memory, language, visuospatial capacity, set-formation and shifting and sequencing. Patients also received quantitative global clinical measures of severity of dementia, depression and motor disability. The PD group as a whole showed deficits in immediate recall of verbal material, language production and semantic fluency, set-formation, cognitive sequencing and working memory and visuomotor construction. However, this group was unimpaired in immediate memory span, long-term forgetting, naming, comprehension and visual perception. Language deficits and more severe frontal lobe impairments were confined to those PD patients scoring abnormally on a Mini Mental State examination. Motor disability correlated strongly with severity of depression but weakly with cognitive impairment. Cognitive sequencing, set-formation and set-shifting deficits tended to associate with depression, but otherwise there was no association between cognition and depression. The results indicate dissociation of cognition and motor control in early PD which suggests that cognitive dysfunction is largely independent of frontostriatal dopamine deficiency underlying motor disability. Some, but not all, of the frontal lobe deficits of chronic disease are detectable in early, untreated PD. The pathogenesis of the cognitive deficits shown here appears to involve extrastriatal dopamine systems or non-dopaminergic pathology. Longitudinal study is necessary to determine whether increasing disease duration exacerbates the early cognitive deficits and affects new cognitive domains, in addition to producing increasing motor disability.
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PMID:Cognitive impairment in early, untreated Parkinson's disease and its relationship to motor disability. 193 36

In a retrospective study the case histories of 70 users of Depo-Provera (containing depo medroxyprogesterone acetate) were reviewed during April-June 1987 at the Family Planning Association of Victoria's Richmond Clinic in Australia to ascertain their socioeconomic status, obstetric and contraceptive history, and side effects of Depo-Provera use. 47 (67%) were employed; 20 (29%) were health care card holders (8 were unemployed and 6 were supporting mothers); 2 were wards of state referred from adolescent institutions; and 3 women (4%) had intellectual disability. 37 (53%) had been pregnant with the total number of pregnancies of 65; 16 women had a total of 25 terminations of pregnancy; and 1 woman had a history of 4 therapeutic abortions. 53 women (76%) had started using contraception before the age of 20; 47% had used more than 1 type of contraception, 46% had used oral contraceptives only, 23% had used the condom, and 5% had used nothing. Age range at start of Depo Provera use was 14-40 years. The reasons given for commencing Depo-Provera included a combination of problems with other methods, forgetting OCs, and side effects of OCs. 47 (67%) had requested the use of Depo-Provera, of whom 13 (18%) had used it previously. 43 (61%) used Depo-Provera for 1 year or less, and only 1 patient had used it for 6 years. Among 52 women (74%) who had more than 1 dose of the injectable, the major side effects related to menstrual disturbances; 31 (41%) had amenorrhea. 2 of these women had breakthrough bleeding during the 1st dose. 17 women (24%) had either irregular bleeding or breakthrough bleeding, while 1 patient continued to have regular periods. 7 women (10%) had other side effects including depression; 4 women (6%) complained of weight gain; and 2 (3%) had breast soreness. 41 women (59%) were smokers, and 40% of them smoked 15 or more cigarettes per day. 35% of the women continued with the method beyond the study period, while the proportion of women within the clinic who continued using Depo-Provera was about 0.5%.
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PMID:Depo Provera: a profile of current users. 214 Jun 75

A discussion of unconscious psychological resistance to contraception is illustrated by the case of a woman with a 10-year history of use of oral contraceptives and IUDs marked by repeated development of side effects and changes of formulation culminating in a serious depression after tubal ligation at age 35. The woman's postligation complaints of abdominal pain resistant to analgesic treatment were the expression of a serious depressive syndrome that responded poorly to antidepressants. The request for contraception normally contains 2 propositions: the individual desires to have sexual relations, and the individual does not wish to procreate. The logical connection between these 2 propositions at the conscious level is absent at the level of the unconscious, where there is no logic or possibility of reasoning. Forgetting a pill is a relatively minor form of resistance to contraception. Other symptoms, such as pain, vertigo, nausea, nervousness, insomnia, and anxiety with the pill or unexplained pain, repeated local infections, or anxiety and depression with the IUD may be manifestations of the psychological modifications inevitably caused by the psychic symbolism of the contraceptive. The difficulty experienced by certain women in accepting in their unconscious the 2 propositions about contraception causes the symptoms to be produced. Unconscious motives for resistance to contraception may include a woman's dependence on the potential for maternity for her sexual identity, or anxiety at the degree of sexual freedom offered by the contraceptive method. The unconscious elements related to resistance are sometimes open to modification. A study of women undergoing abortion at a center in Rennes indication that 91% failed to use an effective method of contraception at the time of the pregnancy, but that 1 year later 76% had accepted a method. Only 12% at risk of undesired pregnancy were not using a method. A large part of the increased usage was probably explained by contraceptive information provided at the time of the abortion, but the very fact of the abortion may have helped some of the women resolve their feelings of ambivalence about contraception. But 53% of the contraceptive acceptors complained of side effects, mainly anxiety, decreased sexual pleasure, weight gain and menstrual problems. It appears that an abortion may influence the decision to use a method without greatly changing the resistance to contraception. The practitioner wishing to assess the potential tolerance or resistance of a woman to contraception should take the time to discuss her feelings about contraception, menstruation (which signifies absence of pregnancy and thus maternity), and her sexual and emotional life. the dialogue can continue in subsequent visits if the women had complaints about side effects.
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PMID:[Resistance to contraception]. 219 28

This study investigated differences in depressed and nondepressed children's recall of positively and negatively reinforced behavior. Twenty-six children with self-reported symptoms of depression in the fourth through sixth grades were compared with a matched sample of 26 nondepressed children to determine if there was a negative bias in depressed children's recall. Subjects first generated guesses of the most common associations to each of a series of 40 words. Later, when compared with their nondepressed peers, the children with depressive symptomology were less accurate in recalling which words they had answered correctly and remembered fewer of their own correct responses. They also did more poorly when asked to recall the correct answers that had been provided by the investigator. The two groups did not differ, however, in their recall of which items had been answered incorrectly or in their recall of their previous wrong responses. These results suggest that children with self-reported depressive symptomology do not remember negative experiences more than do nondepressed children; rather, they recall positive experiences less well. Selective forgetting of positively reinforced behavior could be a serious handicap for depressed children in school. It could also play an important role in the maintenance and perhaps even the etiology of depressive symptomatology in children.
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PMID:Negatively biased recall in children with self-reported symptoms of depression. 232 99

Thirty-seven patients with multiple sclerosis (MS) were compared to 26 normal controls of equivalent age, education, and verbal intelligence on measures of verbal learning and memory (Digit Span and Supraspan, Brown-Peterson Distractor Task, Selective Reminding Test, Story Recall, and Free Verbal Recall) and verbal fluency (Letter and Animal Fluency). The MS patients exhibited deficits on measures of secondary (long-term) memory and verbal fluency, but performed normally on measures of primary (short-term) memory, recognition memory, and rate of forgetting from secondary memory. These results suggest that the memory disturbance in MS results primarily from an imparied ability to access information from secondary memory, while encoding and storage capacity is intact. Degree of memory impairment was unrelated to length of illness, severity of disability, or self-reported depression.
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PMID:On the nature of memory disturbance in multiple sclerosis. 280 59

Twenty-nine patients given unilateral ECT were tested for memory with each treatment. Forgetting of nonverbal material correlated positively with seizure duration and with anesthetic dose. Seizure duration did not correlate with forgetting of verbal material or with changes in Hamilton depression ratings. Seizure duration was inversely related to succinylcholine and methohexital doses. These findings suggest that muscle relaxant and anesthetic doses can be adjusted to lessen the amnestic effects of ECT. There are, however, insufficient data on the relationship between seizure length and ECT efficacy to specify a minimum duration for seizures, individually or cumulatively.
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PMID:Factors affecting amnesia, seizure duration, and efficacy in ECT. 400 87

Prevalence figures of depression usually show a sex ratio for males:females of 1:2. This unequal ratio has been examined by varying the time periods for the calculation of prevalance rates and the criteria for case definition. Based on results of a 20-23 yr-old cohort of 591 males and females studied in Switzerland, some evidence was found to support the hypothesis that an unequal sex ratio is partially due to unequal reporting of depressive symptoms and to differential forgetting, perhaps linked with the male role in society. It is not yet possible to extend the results of this study to older cohorts. Further research would be desirable.
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PMID:The definition of depression. 651 10


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