True and model psychosis

2018 ◽  
pp. 158-185
Author(s):  
J. D. Keehn
Keyword(s):  
2012 ◽  
Vol 33 (1) ◽  
Author(s):  
Elizabeth J. Donaldson

<p>Before LSD became infamous as a psychedelic in the late 1960s, it had an earlier career as a psychotomimetic--a drug which could produce a &ldquo;model psychosis&rdquo; or &ldquo;artificial schizophrenia.&rdquo;&nbsp; This paper focuses on the use of LSD in psychiatry in this often overshadowed period.&nbsp; I examine experiments that use LSD as a prosthetic tool to produce &ldquo;disability immersion&rdquo; experiences of schizophrenia in people without psychiatric symptoms or diagnoses.&nbsp; This use of LSD reversed the traditional way drugs circulate in psychiatry: instead of patients receiving mind-altering medication to ameliorate disabling psychiatric symptoms, mental health professionals took LSD to temporarily disable their normal cognition. Despite the problematic nature of disability immersion experiences in general and the negative valence often attached to mental illness in these accounts, these trips into madness produced, I will argue, positive therapeutic insights, perhaps best illustrated by architect Kiyo Izumi&rsquo;s LSD-inspired design for Yorkton Psychiatric Centre.</p><p>Keywords: schizophrenia, mental illness, psychiatry, disability simulation, LSD</p>


1954 ◽  
Vol 100 (420) ◽  
pp. 623-631 ◽  
Author(s):  
Roland Fischer

The use of fibrous wool protein as a model of the structural surface of receptors, possibly involved in the mechanism producing a model psychosis by drugs, was suggested by three lines of evidence.First, the strong affinity (sorption) of certain basic compounds to keratins of low sulphur content as exemplified by the Gram-positiveness of epidermal (Fischer, 1953c) and nervous (Bailey, 1950) tissue.Second, the accumulating evidence indicating the similarity in behaviour between keratins of high sulphur content (e.g. wool) and the protein component of certain cell membranes (Fischer, 1951; Fischer and Larose, l952a;idem, 1952b; Larose and Fischer, 1952;idem, l953a and 1953b).Third, some preliminary experiments confirming the role of wool protein as a useful model to simulate some of those receptors for which certain drugs appear to compete.


2000 ◽  
Vol 34 (1) ◽  
pp. 35-43 ◽  
Author(s):  
Franz X Vollenweider ◽  
Peter Vontobel ◽  
Ivar Øye ◽  
Daniel Hell ◽  
Klaus L Leenders

1992 ◽  
Vol 25 (2) ◽  
pp. 71-78 ◽  
Author(s):  
S.B. Unnithan ◽  
J.C. Cutting
Keyword(s):  

2005 ◽  
Vol 50 (7) ◽  
pp. 381-388 ◽  
Author(s):  
Erika Dyck

In the popular mind, d-lysergic acid diethylamide (LSD) research in psychiatry has long been associated with the CIA-funded experiments conducted by Ewen Cameron at the Allen Memorial Institute in Montreal, Quebec. Despite this reputation, a host of medical researchers in the post–World War II era explored LSD for its potential therapeutic value. Some of the most widespread trials in the Western world occurred in Saskatchewan, under the direction of psychiatrists Humphry Osmond (in Weyburn) and Abram Hoffer (in Saskatoon). These medical researchers were first drawn to LSD because of its ability to produce a “model psychosis.” Their experiments with the drug that Osmond was to famously describe as a “psychedelic” led them to hypothesize and promote the biochemical nature of schizophrenia. This brief paper examines the early trials in Saskatchewan, drawing on hospital records, interviews with former research subjects, and the private papers of Hoffer and Osmond. It demonstrates that, far from being fringe medical research, these LSD trials represented a fruitful, and indeed encouraging, branch of psychiatric research occurring alongside more famous and successful trials of the first generation of psychopharmacological agents, such as chlropromazine and imipramine. Ultimately, these LSD experiments failed for 2 reasons, one scientific and the other cultural. First, in the 1950s and early 1960s, the scientific parameters of clinical trials shifted to necessitate randomized controlled trials, which the Saskatchewan researchers had failed to construct. Second, as LSD became increasingly associated with student riots, antiwar demonstrations, and the counterculture, governments intervened to criminalize the drug, restricting and then terminating formal medical research into its potential therapeutic effects.


2014 ◽  
Vol 24 ◽  
pp. S526
Author(s):  
C. Hindocha ◽  
T.P. Freeman ◽  
G. Schafer ◽  
C. Gardener ◽  
C.J.A. Morgan ◽  
...  

2004 ◽  
pp. 142-165 ◽  
Author(s):  
D. Cyril D'souza ◽  
Hyun-Sang Cho ◽  
Edward B. Perry ◽  
John H. Krystal
Keyword(s):  

2019 ◽  
Author(s):  
Julia C. Bartsch ◽  
Björn H. Schott ◽  
Joachim Behr

AbstractSchizophrenia is a complex, heterogeneous psychiatric disorder that affects about 1% of the global population. Hippocampal dysfunction has been linked to both cognitive deficits and positive symptoms in schizophrenia. Here, we briefly review current findings on disrupted hippocampal processing from a clinical perspective before concentrating on preclinical studies of aberrant hippocampal synaptic plasticity using the N-methyl-D-aspartate receptor hypofunction model of psychosis and related findings from genetic models. Taken together, the results put the case for maladaptive hippocampal synaptic plasticity and its extrinsic connections as mechanistic underpinnings of cognitive impairments in schizophrenia.


Author(s):  
Aaron Mishara ◽  
Yuliya Zaytseva

This chapter examines whether hallucinations are related to the problem of phenomenal consciousness and how historical contributions to the phenomenology of hallucinations, notably the Early Heidelberg School (1909–1932), shed light on hallucinations in schizophrenia. We focus specifically on Mayer-Gross, who in his phenomenological analysis of hallucinations during psychosis, drew from studies conducted with colleagues in Heidelberg: 1. Hypnagogic experiences (i.e., between waking and sleep); 2. Mescaline as a model-psychosis in the 1920’s with particular relationship to the self-disturbances; 3. Detailed accounts by persons with schizophrenia. In heated debates with colleagues (Berze, Jaspers, C. Schneider, Schröder, Specht, Wernicke) Mayer-Gross concluded that hallucinations in schizophrenia may be considered part of the self-disturbances (later contributing to K. Schneider’s First Rank Symptoms). Shifts in the organization of consciousness play a role. However, hallucinations develop from non-conscious low-level sensory anomalies and a disrupted perception action cycle. The chapter concludes with an assessment of how the Early Heidelberg School contributes to today’s phenomenology of hallucinations.


1955 ◽  
Vol 101 (422) ◽  
pp. 12-27 ◽  
Author(s):  
N. Agnew ◽  
A. Hoffer

Theoretical models ranging from neurological to analytical have been introduced in the hope of providing new insights into psychopathology. The flesh and blood model is of more recent origin in this field. The experimental or model psychosis results from giving “normals” drugs which bring about a psychotic-like experience for a few hours. As is the case with theoretical models, the flesh and blood models are not accurate representations of the naturally occurring psychosis. In fact, the variability manifest in most naturally occurring psychoses makes the existence of an accurate model impossible. A model, whether carefully planned and developed or accidentally discovered, is useful to the extent that it assists us in better understanding the naturally occurring process it approximates. It is useful if it enables us to set up and test hypotheses which contribute additional knowledge about disease aetiology, mechanisms, or treatment. The model psychosis to be studied in this paper is that produced by lysergic acid diethylamide (LSD).


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