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16
article
40
A Double Dissociation Between Two Psychotic Phenotypes: Periodic Catatonia and Cataphasia
Progress in Neuropsychopharmacology and Biological Psychiatry
2018
Schizophrenia as a single liability model was confronted to the multiple psychotic phenotypes model proposed by the Wernicke-Kleist-Leonhard school, focusing on two: periodic catatonia (PC) and cataphasia (C). Both are stable and heritable psychotic phenotypes with no crossed liability and are coming with the buildup of specific residual symptoms: impairment of psychomotricity for PC and a specific disorganization of thought and language in C. Regional cerebral blood flow (rCBF) was used as a biomarker. We attempted to refute the single phenotype model by looking at relevant and specific rCBF anomalies for PC and C, that would exceed anomalies in common relative to controls (CTR), i.e. looking for a double dissociation. Twenty subjects with PC, 9 subjects with C and 27 matched controls had two MRI QUIPSS-II arterial spin labeling sequences converted in rCBF. One SPM analysis was performed for each rCBF measurement and the results were given as the conjunction of both analysis. There was a clear double dissociation of rCBF correlates between PC and C, both being meaningful relative to their residual symptomatology. In PC: rCBF was increased in the left motor and premotor areas. In C: rCBF was decreased bilaterally in the temporo-parietal junctions. Conversely, in both (schizophrenia): rCBF was increased in the left striatum which is known to be an anti-psychotics’ effect. These evidences refuted the single schizophrenia model and suggested better natural foundations for PC and C phenotypes. They plead for further research on them and further research on naturally founded psychotic phenotypes.
WKL; connect
fileadmin/cep_files/Articles/A_double_dissociation_between_two_psychotic_phenotypes-Periodic_catatonia_and_cataphasia.pdf
fileadmin/Cours/Psychopatho/Divers/A_Double_Dissociation/index.html
Jack RFoucher
Yi FanZhang
MathildeRoser
JulienLamy
Paulo Loureirode Sousa
SébastienWeibel
PierreVidailhet
OlivierMainberger
FabriceBerna
book
503
Diagnostics différentiels des psychoses endogènes des troubles de la personnalité et des névroses - Karl Leonhard (traduction)
2014
426#1891
Books on demand, Paris
Traduction
978-2-3220-3850-3
Jack RFoucher
FabriceBerna
JulienElowe
article
1003
Distorted perception of the subjective temporal distance of autobiographical events in patients with schizophrenia
Conscious Cogn
2012
21
90-99
Disturbances of perception of subjective time have been described in schizophrenia but have not been experimentally studied until now. We investigated how patients with schizophrenia estimate the subjective temporal distance (TD) of past personal events, i.e. how these events are perceived as subjectively close or distant in time. Twenty-five patients with schizophrenia and 25 control participants recalled 24 autobiographical memories from four different life periods. They estimated the subjective TD and rated the amount of detail of each memory. Results showed that patients with schizophrenia had a distorted perception of subjective TD. Their memories were significantly less detailed than those of controls and, unlike control participants, the amount of memory detail was not significantly correlated with subjective TD. Poor access to memory detail may account for distortions of perception of subjective time in patients with schizophrenia.
http://www.ncbi.nlm.nih.gov/pubmed/21993451
JevitaPotheegadoo
ChristineCuervo-Lombard
FabriceBerna
Jean-MarieDanion
article
1002
Self-images and related autobiographical memories in schizophrenia
Conscious Cogn
2012
21
247-257
Schizophrenia is a severe mental illness, which affects sense of identity. While the ability to have a coherent vision of the self (i.e., self-images) relies partly on its reciprocal relationships with autobiographical memories, little is known about how memories ground "self-images" in schizophrenia. Twenty-five patients with schizophrenia and 25 controls were asked to give six autobiographical memories related to four self-statements they considered essential for defining their identity. Results showed that patients' self-images were more passive than those of controls. Autobiographical memories underlying self-images were less thematically linked to these self-images in patients. We also found evidence of a weakened sense of self and a deficient organization of autobiographical memories grounding the self in schizophrenia. These abnormalities may account for the poor cohesiveness of the self in schizophrenia.
http://www.ncbi.nlm.nih.gov/pubmed/22040535
MehdiBennouna-Greene
FabriceBerna
Martin AConway
CJRathbone
PierreVidailhet
Jean-MarieDanion
article
1001
Episodic autobiographical memory in normal aging and mild cognitive impairment: A population-based study
Psychiatry Res
2012
While episodic memory impairment has been extensively studied in normal and pathological aging, studies investigating age-related episodic autobiographical memory among representative samples are scarce. We therefore investigated episodic autobiographical memory in a sample of 395 participants of a population-based prospective study of aging. Three groups were compared, consisting of 194 middle-aged participants, 138 healthy old-aged participants and 63 patients with mild cognitive impairment (MCI). Results showed a significant impairment of episodic autobiographical memory performance associated with MCI, but not with normal aging. These deficits were significantly correlated with verbal memory performances, but not with measures of executive functions.
http://www.ncbi.nlm.nih.gov/pubmed/22520853
FabriceBerna
PSchönknecht
USeidl
PToro
JohanesSchröder
article
1012
La mémoire autobiographique et le self dans la schizophrénie
La Revue du Psychiatre
2011
7
44-47
French
FabriceBerna
MehdiBennouna-Greene
Jean-MarieDanion
article
1007
The organization of autobiographical memory in patients with schizophrenia
Schizophr Res
2011
128
156-160
BACKGROUND: Patients with schizophrenia exhibit a wide range of cognitive deficits, including autobiographical memory impairment. It has been suggested that there is a link between this impairment and a disorganization of autobiographical knowledge. This study aimed to explore both the elementary and conceptual organization of autobiographical memory in schizophrenia.
METHODS: We used an event-cueing procedure to obtain and compare ten chains of six inter-related autobiographical memories of eighteen patients with schizophrenia and seventeen control participants. Elementary organization, which relies on memories' basic characteristics, including sensory-perceptive, cognitive, affective and temporal ones, was assessed by calculating the degree of similarity of the memories' characteristics within chains. Cluster-type connectivity, a form of conceptual organization reflecting the ability to organize autobiographical information about sets of causally and thematically related events, was assessed by asking the participants to describe the type of relationship between cued and cueing autobiographical memories.
RESULTS: Whereas in controls elementary organization of memories relied on sensory-perceptive and cognitive characteristics of the memories, in patients it was mostly based on the memories' emotional content. Temporal organization and conceptual organization appeared to be preserved in patients.
CONCLUSIONS: Patients fail to use sensory-perceptive and cognitive characteristics of memories to organize autobiographical knowledge. Possibly to compensate for this, they rely more on the memories' emotional characteristics. Our results point towards an imbalance between emotional and non-emotional factors underlying the organization of autobiographical memory in schizophrenia.
http://www.ncbi.nlm.nih.gov/pubmed/21382696
ChristineMorise
FabriceBerna
Jean-MarieDanion
article
1006
Self-defining memories related to illness and their integration into the self in patients with schizophrenia
Psychiatry Res
2011
30
49-54
Although schizophrenia alters the sense of personal identity, little is known about the impact of illness-related autobiographical events on patients' self-representation. We investigated self-defining memories (SDM) in 24 patients with schizophrenia and 24 controls to explore how illness-related SDM were integrated into the self at both the cognitive (how participants are able to give a meaning to past events: meaning making) and affective levels (how participants can re-experience past negative events as less negative: redemption and benefaction effects). We found that 26% of freely recalled SDM referred to their illness in patients. Further, while meaning making was impaired in patients for both illness-related and other SDM, illness-related SDM were characterized by a higher redemption and benefaction effects than other SDM. Our results highlight that despite a reduced ability to give a meaning to illness-related episodes, emotional processing seems to allow these events to become positively integrated into patients' life stories. This study provides new findings about the construction of the self in relation to psychotic episodes in patients with schizophrenia. We discuss clinical implications of our results that are helpful to guide cognitive interventions.
http://www.ncbi.nlm.nih.gov/pubmed/21459459
FabriceBerna
MehdiBennouna-Greene
JevitaPotheegadoo
PVerry
Martin AConway
Jean-MarieDanion
article
1005
Impaired ability to give a meaning to personally significant events in patients with schizophrenia
Conscious Cogn
2011
20
703-711
Schizophrenia is a severe mental illness affecting sense of identity. Autobiographical memory deficits observed in schizophrenia could contribute to this altered sense of identity. The ability to give a meaning to personally significant events (meaning making) is also critical for identity construction and self-coherence. Twenty-four patients with schizophrenia and 24 control participants were asked to recall five self-defining memories. We assessed meaning making in participants' narratives (spontaneous meaning making) and afterwards asked them explicitly to give a meaning to their memories (cued meaning making). We found that both spontaneous and cued meaning making were impaired in patients with schizophrenia. This impairment was correlated with executive dysfunctions and level of negative symptoms. Our results suggest that patients' difficulties in drawing lessons about past experiences could contribute to explain the lack of coherence observed in their life trajectories and their impaired social adjustment abilities. Implications for psychotherapy are also discussed.
http://www.ncbi.nlm.nih.gov/pubmed/21459619
FabriceBerna
MehdiBennouna-Greene
JevitaPotheegadoo
PVerry
Martin AConway
Jean-MarieDanion
article
1004
History of abuse and neglect in patients with schizophrenia who have a history of violence
Child Abuse Negl
2011
35
329-332
OBJECTIVE: To determine the prevalence of five forms of abuse/neglect during childhood and adolescence in a group of schizophrenic patients with a history of violence.
METHODS: Twenty-eight patients hospitalized in a highly secured psychiatric unit were included. Abuse and neglect during patients' growth were evaluated with the childhood trauma questionnaire (CTQ). History of substance abuse (consumption of cannabis, and/or alcohol, and/or heroin, and/or cocaine during the year that preceded the hospitalization), incarceration, and death of a close parent were also collected.
RESULTS: We found that 46.4% of patients experienced at least 1 form of abuse and/or neglect during childhood and 21.4% of them had experienced more than 2 forms of abuse and/or neglect. The 2 most frequent forms of neglect and abuse were physical abuse (39.3%) and emotional neglect (17.9%). History of substance abuse was found for cannabis (57.1%), alcohol (57.1%), and cocaine and/or heroin (35.7%). We found that 42.8% of patients had 1 close relative who had died during their growth and that 41.6% of these deaths were violent.
CONCLUSION: It appears important to systematically search for and assess a history of abuse and neglect during growth in schizophrenic patients with a history of violence, in order to offer specific treatments for this group of patients.
http://www.ncbi.nlm.nih.gov/pubmed/21620159
MehdiBennouna-Greene
ValérieBennouna-Greene
FabriceBerna
LucDefranoux
inbook
402
Anxiety-hapiness psychosis
2011
64-74
“Angst-Glücks-Psychose” has several translations in the literature: anxiety-happiness psychosis (AHP), anxiety-elation or anxiety-bliss psychosis. AHP is one of the 3 phenotypes of the cycloid psychosis (CP) as defined by the Wernicke-Kleist-Leonhard (WKL) school [26]. CP are bipolar psychoses in that they manifest in two opposite clinical pictures that may alternate from one episode to the next or during the same episode (mixed state). AHP as all CP has a purely relapsing-remitting course without accumulation of other symptoms between episodes; this can be opposed to nonsystematic schizophrenias that come with an initial episodic course as well, but where residual symptoms, e.g. lameness, indifference of affect up to flatness or blunting, loss of drive, but also other symptoms such as paranoia, hallucination, language disorders, increase at each remission. Psychosis or emotional disturbance could either appear as prevalent to a ICD/DSM formatted mind, but this symptomatology is too rough to distinguish them from non-systematic schizophrenias.
WKL
http://paperc.de/16055-das-glueck-9783898386470#!/pages/I
fileadmin/Restreint/Anxiety-happiness_psychosis.pdf
Johannes Schröder und Frank G. Brecht
Akademische Verlagsgesellschaft GmbH
Heidelberg
IX. Symposium zur interdisziplinären Arbeit in der Sozialpsychiatrie
Das Glück: Eine interdisziplinäre und klinische Betrachtung
Jack RFoucher
ValérieBennouna-Greene
FabriceBerna
BrunoPfuhlman
GeraldStöber
article
1010
Manifestations psychiatriques inaugurales de la sclérose en plaques
Neurologies
2010
13
29-30
French
FrédéricBlanc
FabriceBerna
article
1011
Evénements psychotiques inauguraux de sclérose en plaques
Revue Neurologique
2010
166
39-48
French
FrédéricBlanc
FabriceBerna
MarieFleury
LLita
ElisabethRuppert
DFerriby
PatrickVermesch
PierreVidailhet
Jerômede Seze
article
1008
True and false autobiographical memories in schizophrenia: preliminary results of a diary study
Psychiatry Res
2010
179
1-5
The frequency of true and false autobiographical memories and associated states of conscious awareness, i.e., conscious recollection and simply knowing, as well as the respective roles of affective and cognitive processes in autobiographical memory construction, were assessed in eight patients with schizophrenia and eight control participants. A diary study methodology was used in combination with the Remember/Know procedure. The results showed a higher frequency of Know responses associated with the retrieval of both true and false memories in patients than in control participants. Whereas control participants rated higher at retrieval than at encoding the distinctiveness and personal importance of events, as well as the extent to which events furthered current personal plans, patients exhibited an opposite pattern of ratings, with ratings being lower at retrieval than at encoding. These preliminary results show a high frequency of simply knowing associated with the retrieval of true and false autobiographical memories in patients with schizophrenia and provide evidence for the interest of the diary study methodology for studying autobiographical memory in schizophrenia.
http://www.ncbi.nlm.nih.gov/pubmed/20478623
ElodiePernot-Marino
CarolineSchuster
GHédelin
FabriceBerna
Marie-AgatheZimmermann
Jean-MarieDanion
book
1013
Mémoire autobiographique et schizophrénie
2009
65-75
Masson
Paris
Journées Pierre Denicker
8ème journée Pierre Denicker
FabriceBerna
MehdiBennouna-Greene
Jean-MarieDanion
article
1009
Functional mechanisms of episodic memory impairment in schizophrenia
Can J Psychiatry
2007
52
693-701
OBJECTIVE: To achieve a better understanding of the functional mechanisms underlying episodic memory dysfunction in schizophrenia, which is a prerequisite for unravelling schizophrenia's neural correlates in neuroimaging studies and, more generally, for developing an integrated approach to the pathophysiology of schizophrenia. It is also crucial for developing cognitive remediation.
METHOD: This paper reviews empirical evidence of episodic memory dysfunction in schizophrenia obtained with reference to various theoretical models of episodic memory.
RESULTS: All the studies converge to show a significant impairment of the critical feature of episodic memory: conscious recollection. Schizophrenia is also associated with a defect of autobiographical memory. The episodic memory dysfunction results from a predominant failure of strategic processing at encoding, although an impairment of strategic processing at retrieval cannot be ruled out. The possibility that it is not the execution of the encoding strategies that is defective but, rather, their self-initiation by the patients is plausible.
CONCLUSIONS: These findings may explain some behavioural abnormalities associated with schizophrenia, notably, inadequate functional outcomes in everyday life. They may also have implications for cognitive remediation and better social and work functioning of patients with schizophrenia.
http://www.ncbi.nlm.nih.gov/pubmed/18399036
Jean-MarieDanion
CarolineHuron
PierreVidailhet
FabriceBerna