Author
S.M. Channabasavanna
Bio: S.M. Channabasavanna is an academic researcher from National Institute of Mental Health and Neurosciences. The author has contributed to research in topics: Electroconvulsive therapy & Lithium (medication). The author has an hindex of 18, co-authored 71 publications receiving 921 citations.
Papers published on a yearly basis
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TL;DR: The amine metabolites, namely homovanillic acid (HVA) and 5-hydroxy indoleacetic acid (5-HIAA) were measured in cerebrospinal fluid (CSF) of depressives and controls and correlated positively with monoamine oxidase activity and adenosine deaminase activity.
104 citations
TL;DR: Undesirable, uncon trolled life events in the area of health and bereavement occurred more commonly in obsessive compulsive disorder.
Abstract: Life events were evaluated for a period of one year prior to onset of obsessive compulsive disorder in 32 subjects with a maximum duration of illness of two years and compared with a matched healthy volunteer group. There was a significant excess of life events in the six months prior to the onset of the illness. Undesirable, uncontrolled life events in the area of health and bereavement occurred more commonly in obsessive compulsive disorder.
72 citations
TL;DR: Clusters of phenomena were obtained by two clustering techniques, using the form and content of obsessions and compulsions, which involved washing, checking, thoughts of past, and embarrassing behaviour.
Abstract: Clusters of phenomena were obtained by two clustering techniques, using the form and content of obsessions and compulsions. Significant clusters which emerged involved washing, checking, thoughts of past, and embarrassing behaviour. Depression occurred as a discrete cluster. Eighty-nine per cent of subjects could be fitted into at least one cluster; over half could be fitted into only one cluster. Washers and checkers made up more than half of the sample studied.
59 citations
TL;DR: Fear of contamination was the single most common theme, followed by thoughts of daily activities, thoughts about the past and fears of harm, in obsessive-compulsive neurosis patients seen over a 10-year period.
Abstract: 761 obsessions were recorded from 410 cases of obsessive-compulsive neurosis seen over a 10-year period. The obsessions were analysed according to form and content: 6 categories of form and 11 categories of content were delineated. Fear of contamination was the single most common theme, followed by thoughts of daily activities, thoughts about the past and fears of harm. The findings are discussed in the light of earlier literature.
54 citations
TL;DR: Discriminant function analysis revealed that oral cancers and relatives' awareness of the cancer was more prevalent in the group aware of diagnosis and more patients in the "unaware" group refused treatment for psychological distress.
49 citations
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01 Jan 1964
TL;DR: In this paper, the notion of a collective unconscious was introduced as a theory of remembering in social psychology, and a study of remembering as a study in Social Psychology was carried out.
Abstract: Part I. Experimental Studies: 2. Experiment in psychology 3. Experiments on perceiving III Experiments on imaging 4-8. Experiments on remembering: (a) The method of description (b) The method of repeated reproduction (c) The method of picture writing (d) The method of serial reproduction (e) The method of serial reproduction picture material 9. Perceiving, recognizing, remembering 10. A theory of remembering 11. Images and their functions 12. Meaning Part II. Remembering as a Study in Social Psychology: 13. Social psychology 14. Social psychology and the matter of recall 15. Social psychology and the manner of recall 16. Conventionalism 17. The notion of a collective unconscious 18. The basis of social recall 19. A summary and some conclusions.
5,690 citations
1,571 citations
TL;DR: A system has been described that links the medial prefrontal cortex and a few related cortical areas to the amygdala, the ventral striatum and pallidum, the medial thalamus, the hypothalamus, and the periaqueductal gray and other parts of the brainstem, which indicates that this system is centrally involved in mood disorders.
1,386 citations
TL;DR: A systematic overview and meta-analysis of randomised controlled trials and observational studies for the efficacy and safety of electroconvulsive therapy with simulated ECT, ECT versus pharmacotherapy, and different forms of ECT for patients with depressive illness found ECT is an effective short-term treatment for depression.
1,321 citations
TL;DR: The complex clinical presentation of OCD can be summarized with a few consistent, temporally stable symptom dimensions that can be understood as a spectrum of potentially overlapping syndromes that may coexist in any patient, be continuous with normal obsessive-compulsive phenomena, and extend beyond the traditional nosological boundaries of OCD.
Abstract: OBJECTIVE: Obsessive-compulsive disorder (OCD) is a clinically heterogeneous condition. This heterogeneity can reduce the power and obscure the findings from natural history studies to genome scans, neuroimaging, and clinical trials. The authors review the evidence supporting a multidimensional model of OCD. METHOD: Computerized and manual literature searches were performed to identify factor-analytic studies of obsessive-compulsive symptoms before data from disciplines that bear on the potential usefulness of these dimensions were considered. Selection criteria included the novelty and importance of studies and their relevance to outcomes of interest to well-informed mental health professionals. RESULTS: Twelve factor-analytic studies involving more than 2,000 patients were identified that consistently extracted at least four symptom dimensions: symmetry/ordering, hoarding, contamination/cleaning, and obsessions/checking. These dimensions were associated with distinct patterns of comorbidity, genetic tra...
950 citations