References of "von Frenckell, R"
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See detailRelationship between alpha 2-adrenergic function and suicidal behavior in depressed patients.
Pitchot, William ULg; Ansseau, Marc ULg; Gonzalez Moreno, A. et al

in Psychiatry Research (1994), 52(2), 115-23

The current main neurochemical theories of the biological correlates of suicidal behavior involve serotonergic and, to a lesser extent, dopaminergic systems. Few data are available about the possible ... [more ▼]

The current main neurochemical theories of the biological correlates of suicidal behavior involve serotonergic and, to a lesser extent, dopaminergic systems. Few data are available about the possible implication of the noradrenergic function. In the present study, we assessed the growth hormone response to clonidine, a selective alpha 2-adrenergic agonist, in 15 DSM-III-R major depressive inpatients with a history of suicide attempts, compared with 15 age- and gender-matched major depressive inpatients without a history of suicidal behavior. Mean (+/- SD) growth hormone peak responses to clonidine were significantly lower in the group of suicide attempters than in the control group: 2.93 +/- 3.01 ng/ml vs. 8.28 +/- 8.15 ng/ml. Therefore, these results suggest that a blunted growth hormone response to clonidine could be a biological correlate of suicidal behavior. [less ▲]

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See detailDopaminergic function in panic disorder: comparison with major and minor depression.
Pitchot, William ULg; Ansseau, Marc ULg; Gonzalez Moreno, A. et al

in Biological Psychiatry (1992), 32(11), 1004-11

Several lines of evidence suggest that dopamine might be involved in anxiety states. In this study, we assessed the growth hormone (GH) response to apomorphine (a dopaminergic agonist) 0.5 mg SC in nine ... [more ▼]

Several lines of evidence suggest that dopamine might be involved in anxiety states. In this study, we assessed the growth hormone (GH) response to apomorphine (a dopaminergic agonist) 0.5 mg SC in nine drug-free inpatients meeting Research Diagnostic Criteria (RDC) for panic disorder who were age-matched and gender-matched with nine major depressive, and nine minor depressive inpatients. The three groups differed significantly in their mean GH peak response: 5.29 +/- 2.75 ng/ml in major depressives, 26.27 +/- 12.71 ng/ml in minor depressives, and 37.28 +/- 10.58 ng/ml in panics, with a significantly higher response in panic than in either minor or major depressive patients. These results support dopaminergic overactivity in panic disorder as compared with major and minor depression. [less ▲]

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See detailCerebral Glucose Utilization During Sleep-Wake Cycle in Man Determined by Positron Emission Tomography and [18f]2-Fluoro-2-Deoxy-D-Glucose Method
Maquet, Pierre ULg; Dive, Dominique ULg; Salmon, Eric ULg et al

in Brain Research (1990), 513(1), 136-43

Using the [18F]fluorodeoxyglucose method and positron emission tomography, we studied cerebral glucose utilization during sleep and wakefulness in 11 young normal subjects. Each of them was studied at ... [more ▼]

Using the [18F]fluorodeoxyglucose method and positron emission tomography, we studied cerebral glucose utilization during sleep and wakefulness in 11 young normal subjects. Each of them was studied at least thrice: during wakefulness, slow wave sleep (SWS) and rapid eye movement sleep (REMS), at 1 week intervals. Four stage 3-4 SWS and 4 REMS fulfilled the steady state conditions of the model. The control population consisted of 9 normal age-matched subjects studied twice during wakefulness at, at least, 1 week intervals. Under these conditions, the average difference between the first and the second cerebral glucose metabolic rates (CMRGlu was: -7.91 +/- 15.46%, which does not differ significantly from zero (P = 0.13). During SWS, a significant decrease in CMRGlu was observed as compared to wakefulness (mean difference: -43.80 +/- 14.10%, P less than 0.01). All brain regions were equally affected but thalamic nuclei had significantly lower glucose utilization than the average cortex. During REMS, the CMRGlu were as high as during wakefulness (mean difference: 4.30 +/- 7.40%, P = 0.35). The metabolic pattern during REMS appeared more heterogeneous than at wake. An activation of left temporal and occipital areas is suggested. It is hypothetized that energy requirements for maintaining membrane polarity are reduced during SWS because of a decreased rate of synaptic events. During REMS, cerebral glucose utilization is similar to that of wakefulness, presumably because of reactivated neurotransmission and increased need for ion gradients maintenance. [less ▲]

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See detailPsychopathological correlates of dopaminergic disturbances in major depression.
Pitchot, William ULg; Hansenne, Michel ULg; Moreno, A. G. et al

in Neuropsychobiology (1990), 24(4), 169-72

In a recent report, we confirmed the role of dopamine in the pathophysiology of depression by demonstrating a blunted response of growth hormone (GH) to apomorphine, a selective dopaminergic agonist, in ... [more ▼]

In a recent report, we confirmed the role of dopamine in the pathophysiology of depression by demonstrating a blunted response of growth hormone (GH) to apomorphine, a selective dopaminergic agonist, in endogenous depressive patients. Few data are available on the possible psychopathological correlates of disturbances in the apomorphine test. In this study, we assessed the relationship between GH response to apomorphine and the Minnesota multiphasic personality inventory (MMPI) scales in a sample of 20 major depressive inpatients. The GH response (area under the curve) after apomorphine injection was positively correlated with the social introversion scale scores (r = 0.56, df = 19, p less than 0.01) and the anxiety scale scores (r = 0.45, df = 19, p = 0.04). These results suggest dopaminergic overactivity in anxious psychopathology rather than in depressive psychopathology. The relationship between the social introversion scale score and the apomorphine test is in agreement with the dopaminergic hypothesis of schizophrenic disorders. [less ▲]

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See detailIndices psychologiques et longévité
Mormont, Christian ULg; Mormont, I.; Von Frenckell, R.

in Acta Psychiatrica Belgica (1986), 86(2), 111-119

Studied psychological variables associated with longevity. Human subjects: 63 male French adults (54-65 yrs) (prisoners of war during World War II). All Ss completed a battery of psychological tests, and ... [more ▼]

Studied psychological variables associated with longevity. Human subjects: 63 male French adults (54-65 yrs) (prisoners of war during World War II). All Ss completed a battery of psychological tests, and psychological profiles of 16 Ss who died within 3 yrs of testing were compared to those of the surviving Ss. Tests used: The Wechsler Adult Intelligence Scale (WAIS) (1955), L. Bender's Visual Motor Gestalt Test, the Minnesota Multiphasic Personality Inventory (MMPI), R. Benton's Visual Memory Test, and the Cattell Anxiety Scale. [less ▲]

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See detailStructure factorielle de l'A.M.D.P. : analogie avec les études de langue allemande et originalité de l'adaptation française
Troisfontaines, B.; Bobon, D.; Digonnet, C. et al

in Annales Médico Psychologiques (1984), 142(6), 870-880

Validated the results of a previous analysis of 337 Association for Methodology and Documentation in Psychiatry (AMDP)-V system Ss and 388 AMDP-IV system Ss with a sample of 493 Ss. The factorial ... [more ▼]

Validated the results of a previous analysis of 337 Association for Methodology and Documentation in Psychiatry (AMDP)-V system Ss and 388 AMDP-IV system Ss with a sample of 493 Ss. The factorial structure of the French version of the AMDP has 10 psychopathological factors (AMDP-IV) and 3 somatic factors (AMDP-V) independent of the psychopathological factors. 23 rare or inestimable items were found, including neologisms, certain types of hallucinations, self-mutilations, sexual deviations, allergic reactions, tardive dyskinesias, hypersalivation, hypotonia, ataxia, and nystagmus. Minor modifications to the syndromic scale of the AMDP are proposed to standardize its factorial structure, to avoid misunderstandings, and to improve international comprehension of AMDP terminology. [less ▲]

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See detailInfluences de variables temporelles (time-blind, time gap) sur l'évaluation quantitative de la psychopathologie
Mormont, Christian ULg; Von Frenckell, R.; Lottin, Thierry ULg et al

in L'Encéphale (1984), 10(1), 3-7

Investigated the influence of methodological conditions (i.e., time-blind evaluation, chronological vs random order, and suppression of the time gap between evaluations) on the objectivity and sensibility ... [more ▼]

Investigated the influence of methodological conditions (i.e., time-blind evaluation, chronological vs random order, and suppression of the time gap between evaluations) on the objectivity and sensibility of quantitative evaluation of psychopathology. Different evaluations of videotaped interviews did not demonstrate systematic effects of these temporal conditions. It is suggested that other variables (monotony, order of sequences, verbal inertia, contingencies) may play a greater role. Within the methodological limits of the present study, the time-blind evaluation was the most sensitive [less ▲]

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See detailLa lettre informatisée au médecin traitant: Une application pratique de l'AMDP
Mormont, Christian ULg; Bobon, D.; Von Frenckell, R. et al

in Acta Psychiatrica Belgica (1983), 83(6), 588-597

The authors have elaborated a micro-computerized program which enables --on the basis of the Psychopathology Form (plus optionally the Somatic Form) of the AMDP-System and of an open-language diagnosis ... [more ▼]

The authors have elaborated a micro-computerized program which enables --on the basis of the Psychopathology Form (plus optionally the Somatic Form) of the AMDP-System and of an open-language diagnosis and treatment --to print out instantly a semi-standardized letter and a syndromic profile of 10 or 13 factors. This realization is favorably acknowledged by general practitioners and medical inspectors thanks to its speed of transmission, to its brevity and to the clarity of the syndromic reduction of the clinical picture. Other advantages lie in the greater validity of factor scores as compared to items scores, the standardization and readability of the clinical files, and the extension of the AMDP data bank. [less ▲]

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See detailIntroduction aux journées AMDP d'hommage à Jean Bobon
Mormont, Christian ULg; Bobon, D.; Von Frenckell, R. et al

in Acta Psychiatrica Belgica (1982), 82(4), 367-370

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See detailAnalyse factorielle de la révision française de l'échelle A.M.D.P. : résultats d'une étude internationale de 388 cas
Bobon, D.; Mormont, Christian ULg; Doumont, A. et al

in Acta Psychiatrica Belgica (1982), 82

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See detailMise en évidence de profils psychologiques différents dans un échantillon d'impuissants érectifs
Mormont, Christian ULg; Legros, Jean-Jacques ULg; Servais, J. et al

in Acta Psychiatrica Belgica (1980), 80(4), 476-486

The homogeneity of personality in patients suffering from psychogenic impotency has never been tested. In order 1. to test the homogeneity of the population and 2. to delineate putative prognostic scores ... [more ▼]

The homogeneity of personality in patients suffering from psychogenic impotency has never been tested. In order 1. to test the homogeneity of the population and 2. to delineate putative prognostic scores, the authors have applied inverse factorial analysis to MMPI and Rorschach performed in a group of 100 patient suffering from "psychogenic impotence". The results obtained evidenced an heterogeneity in the group, subgroups may differ as far as prognostic is concerned. [less ▲]

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See detailL'examen psychologique de l'impuissant: Perspectives typologiques
Mormont, Christian ULg; Legros, J.-J.; Servais, J. F. et al

in Cahiers de Sexologie Clinique (1980), 7

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See detailFidélité intercotateurs de l'échelle psychopathologique AMDP II. Distances entre cotateurs et analyse d'items d'une délirante et d'une déprimée
Mirel, J.; Von Frenckell, R.; Berner, P. et al

in Compte rendu du Congrès de Psychiatrie et de Neurologie de Langue Française (1979), 57

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See detailTraitements automatisés des données du Rorschach
Mormont, Christian ULg; Von Frenckell, R.

in Acta Psychiatrica Belgica (1978), 78(4), 658-665

Automated computer systems can be developed not only to analyze Rorschach data, but to serve as other valuable research instruments. Selection, definition, and coding of information permit not only its ... [more ▼]

Automated computer systems can be developed not only to analyze Rorschach data, but to serve as other valuable research instruments. Selection, definition, and coding of information permit not only its memorization, but also analysis according to various mathematical methods. Tabulation and frequency analyses are facilitated, while other analyses (discrimination analysis, inverse factor analysis, covariance analysis) are made possible. The collaboration of psychologists, mathematicians, and computer specialists opens interesting avenues. [less ▲]

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See detailEtude préliminaire de la fidélité intercotateurs de l'échelle psychopathologique AMDP
Von Frenckell, R.; Berner, P.; Bobon, D. P. et al

in Compte rendu du Congrès de psychiatrie et de neurologie de langue française (1978, July)

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