Beliefs About the Causes of Psychosis Among Persons With Psychosis and Mental Health Professionals: A Scoping Review
Abstract
Objective:
Methods:
Results:
Conclusions:
Methods
Results
Methodological Quality of the Included Articles
Causal Beliefs of MHPs
Common types of causal beliefs about psychosis.
Study | Country | Participants | N | Setting | Outcomesa |
---|---|---|---|---|---|
Carter et al., 2017 (55) | United Kingdom | Community psychiatric nurses, social workers, psychiatrists, staff nurses, care coordinators, psychologists, team managers, occupational therapists, support workers, and others | 219 | Mental health centers | The study used 5-point scales, with higher scores indicating greater endorsement. MHPs’ scores were higher on the psychosocial scale (PS), compared with the biogenetic scale (BG) (M=4.11±1.63 vs. M=3.75±1.64). Psychologists’ PS scores were considerably higher than their BG scores (M=4.72±1.19 vs. M=2.29±1.88). Other professionals’ PS scores were similar to their BG scores. Psychiatrists were the only group to have higher BG scores, compared with their PS scores (M=4.38±.94 vs. 4.07±1.70). |
Fitzgibbons and Shearn, 1972 (61) | United States | Psychiatrists, psychologists, and psychiatric social workers | 183 | Multiple settings | Psychiatrists endorsed the disease concept of schizophrenia and rejected interpersonal etiology. Psychologists and social workers endorsed interpersonal etiology while rejecting the disease concept of schizophrenia and did not differ significantly from each other with respect to these 2 factors. Endorsement rates were not reported. |
Gallagher, 1977 (62) | United States | Psychiatrists | 109 | Members of the American Psychiatric Association | No clear preference was found for either biogenetic or psychosociogenetic views. Endorsement rates were not reported. |
Grausgruber et al., 2007 (52) | Austria | Nonmedical mental health professionals, including psychiatric nurses, social workers, psychologists, physiotherapists, and occupational therapists | 1,479 | Mental health care institutions (mailed survey) | MHPs endorsed a multicausal model of schizophrenia, including unhappy family situation (31%, N=∼454), genes (26%, N=∼390), and nervous strain (26%, N=∼389). |
Harland et al., 2009 (57) | United Kingdom | Trainee psychiatrists | 72 | Multiple settings | The biological model was most frequently endorsed for schizophrenia. Two of the 3 statements most agreed with were related to schizophrenia: “The disorder results from brain dysfunction” (86% endorsed); “The appropriate study of the disorder involves discovery of biological markers and the effects of biological interventions” (80%). Schizophrenia was the least likely disorder to be attributed to other etiological models (i.e., nonbiological). |
Kukulu and Ergün, 2007 (63) | Turkey | Psychiatric nurses | 693 | Psychiatric wards | Approximately half (51%, N=279) of the nurses agreed that social problems caused schizophrenia, and most (93%, N=506) agreed that it is an illness present from birth. |
Magliano et al., 2004 (25) | Italy | Nurses and psychiatrists | 300b | Mental health services | Factors most frequently endorsed were heredity (psychiatrists, 75%, N=∼82; nurses, 74%, N=∼141), stress (psychiatrists, 66%, N=∼7; nurses, 53%, N=∼101), and family conflicts (psychiatrists, 46%, N=∼51; nurses, 48%, N=∼91). |
Newmark et al., 1977 (58) | United States | Psychologists and psychiatrists | 381c | Multiple settings | Compared with psychologists, psychiatrists rated both the psychodynamic perspective (p≤.001) and the biochemical-neurological perspective (p≤.001) as significantly more important. |
Soskis, 1972 (59) | United States | Psychiatrists | 132 | Multiple settings | On a scale of 1–3, psychiatrists’ highest endorsement was for the genetic perspective (M=2.2), closely followed by psychodynamic (M=2.1) and family-learning (M=2.1) perspectives. |
Ting, 1997 (60) | Taiwan | Psychiatric nurses | 525 | Hospitals | Genetic predisposition was ranked as the most important factor in the etiology of schizophrenia (M=1.83, rank order 1), followed by constitutional/biochemical imbalance (M=1.08, rank order 2). |
Wahass and Kent, 1997 (53) | United Kingdom and Saudi Arabia | Psychologists and psychiatrists | 295d | Mailed questionnaires sent to professionals in mental health sectors | Beliefs about etiology were related to culture, rather than to profession. For example, United Kingdom (UK) staff were more likely than staff in Saudi Arabia (SA) to endorse brain damage (UK psychologists, 57%, N=∼40; UK psychiatrists, 62%, N=∼53; SA psychologists, 36%, N=∼25; SA psychiatrists, 40%, N=∼28), negative childhood experiences (UK psychologists, 36%, N=∼25; UK psychiatrists, 22%, N=∼19; SA psychologists, 8%, N=∼6; SA psychiatrists, 6%, N=∼4). |
Impact of clinical profession on type of causal beliefs.
Cultural differences among MHPs.
Causal Beliefs of People With Psychosis
Common types of causal beliefs about psychosis.
Study | Country | Na | Setting | Outcomesb |
---|---|---|---|---|
Angermeyer and Klusmann, 1988 (48) | Germany | 198 | Psychiatric hospitals | Most patients chose a combination of two or more categories: 64% (N=∼126) endorsed “family” as a cause, 71% (N=∼140) endorsed “personality,” 88% (N=∼174) endorsed “recent psychosocial factors,” and 32% (N=∼62) endorsed “biology.” |
Caqueo-Urízar et al., 2015 (29) | Chile, Peru, and Bolivia | 253 | Public clinics | Participants rated causal factors on a 3-point scale, with higher scores indicating a stronger endorsement of the item as a cause of psychosis. Scores were higher for psychosocial factors (M=2.69±2.83) than for biological (M=1.67±1.73) and magical-religious (M=1.16±1.92) factors. |
Carter et al., 2018 (13) | United Kingdom | 15 | Community mental health (CMH) teams, early intervention teams (EITs) | The category of belief most frequently endorsed was psychosocial. Other categories (biological, drug use, and unusual beliefs) were also frequently mentioned. In this qualitative study, endorsement rates were not reported. |
Carter et al., 2018 (54) | England | 311 | CMH teams, EITs, and inpatient units | Participants rated causal factors on a 5-point scale, with higher scores indicating a stronger endorsement of the item as a cause of psychosis. Scores were higher on the psychosocial scale (M=3.37±1.06), compared with the biogenetic scale (M=3.13±1.15). Scores were lowest on the spiritual scale (M=2.30±1.34). |
Charles et al., 2007 (49) | India | 100 | Hospital | Most held complex models of illness: 60% (N=∼60) held at least one nonbiomedical causal belief, and 32% (N=∼32) endorsed disease as a cause. Spiritual beliefs were widely held. Patients’ endorsement of a disease model and a belief in karma and evil spirits as causes of illness were associated with higher stigma scores. |
Chilale et al., 2017 (46) | Malawi | 24 | Different sources in the community, including traditional healers (participants in an earlier study were approached). | Among causal beliefs, sociocultural factors, such as witchcraft, spirit possession, and curses, were dominant. In this qualitative study, endorsement rates were not reported. |
Conrad et al., 2007 (43) | Jordan and Germany | 47c | Psychiatric hospitals (1 Jordanian, 2 German) | Participants rated causal beliefs on a 5-point scale, with higher scores indicating a stronger endorsement of the item as a cause of psychosis. For both groups, the most endorsed belief was psychosocial stress (Germans, M=25.8±4.9; Jordanians, M=25.5±6.5). Jordanians endorsed supernatural factors more strongly, compared with Germans (M=10.1±5.1 vs. M=7.7±4.3). |
Dudley et al., 2009 (42) | United Kingdom | 21 | EITs | The most endorsed cause was drug use (N=6, 29% of the variance). None of the factors reflected a “medical model” of psychosis. |
Freeman et al., 2013 (66) | United Kingdom | 92 | Mental health services, both inpatient and outpatient | The most endorsed causes were psychosocial: stress (72%, N=65 of 90), state of mind (68%, N=61 of 89), other people (64%, N=58 of 90,), and personality (60%, N=54 of 90). |
Gómez-de-Regil, 2014 (56) | Mexico | 62 | Hospital | Participants rated causal factors on a 4-point scale, with higher scores indicating a stronger endorsement of the item as a cause of psychosis. Participants rated society factors highest (M=12.7±4.1), followed by personality (M=11.9±3.7), family (M=11.1±4.5), biology (M=10.4±3.5), and esoteric (M=8.8±3.1). |
Holzinger et al., 2003 (23) | Germany | 100 | Outpatient clinics, CMH services, and office-based psychiatrists | Participants cited psychosocial causes about twice as often as biogenetic causes. The main psychosocial cause cited was psychosocial stress (66%, N=66). |
Hussain et al., 2017 (22) | Pakistan | 100 | Hospital | The most frequently endorsed beliefs were psychosocial. Beliefs least likely to be endorsed were related to alcohol and drugs. Endorsement rates were not reported. |
Johnson et al., 2012 (30) | India | 131 | Hospitals | Endorsed causes were spiritual (black magic, 73%, N=96; evil spirits, 18%, N=23; and punishment by God, 11%, N=14), hereditary factors (<1%, N=1), disease (14%, N=17), and psychosocial factors (11%, N=14). About a fifth of participants (22%) endorsed models with multiple causal factors. The proportion endorsing disease models steadily increased over time. The number endorsing nonmedical models was high at recruitment, fell over the first year of treatment, and then rose dramatically. |
Jones et al., 2003 (40) | United Kingdom | 20 | Different sources in the community | “Positive spiritual perspective” was the most endorsed factor (N=7). Those whose responses loaded onto this factor perceived voices as positive experiences, derived from spiritual sources. They condemned a biomedical view of hearing voices. The second most-endorsed factor was the personal relevance perspective (N=4), in which hearing voices was related to personal life events within a psychological framework. |
Kinderman et al., 2006 (35) | United Kingdom | 20d | 7 psychiatrists referred inpatients and outpatients | Participants held multiple beliefs simultaneously. The most common account implied an interaction between personal characteristics and psychosocial stresses. In this qualitative study, endorsement rates were not reported. |
Lund and Swartz, 1998 (41) | South Africa | 10 | Community psychiatry clinic | Most respondents (N=7) understood their condition in terms of a “spiritual” or “mystical” explanation. |
Magliano et al., 2009 (50) | Italy | 241 | Mental health clinics | At least one social cause was cited by 76% (N=150 of 198), and 58% (N=114 of 198) cited exclusively social causes. The most frequently cited social cause was family conflicts (41%, N=∼81), followed by traumas (39%, N=∼77). Biological causes were cited by 10% (N=∼20). In regard to stigma, those who attributed their mental disorder to social causes scored lower on recognizability, compared with those who made other attributions (lower scores indicated that they were less likely to feel they would be recognized as a person with mental illness). |
Makanjuola et al., 2016 (44) | Nigeria, Ghana, and Kenya | 85 | Clinics of complementary and alternative practitioners | Endorsements were equal for spiritual (49%, N=64) and biopsychosocial (51%, N=66) causes. In regard to stigma, most who scored high in stigma tended to hold supernatural causal beliefs. |
Maraj et al., 2017 (17) | Canada | 171e | EITs | Black Africans were less likely than White Europeans to attribute psychosis to hereditary factors (37%, N=15 vs. 57%, N=51) or to substance abuse (32%, N=13, vs. 52%, N=47). No differences in explanatory models were noted between the Black Caribbean and White European groups. |
McCabe and Priebe, 2004 (47) | United Kingdom | 119 | Mental health clinics | Whites cited biological causes (35%, N=10) more frequently, compared with African Caribbeans (7% N=2), Bangladeshis (N=0), and West Africans (11%, N=3). Supernatural causes were cited by African Caribbeans (10%, N=3), Bangladeshis (27%, N=7), and West Africans (29%, N=8) and were not cited at all by Whites. Social causes were cited more frequently by African Caribbeans (60%, N=18) and Bangladeshis (42%, N=11), compared with Whites (31%, N=9). |
Sanders et al., 2011 (67) | New Zealand | 111 | Mental health services | The three most frequently endorsed causes were drugs and alcohol (26%, N=14), family relationships and abuse (22%, N=12), and biological causes (20%, N=11). No significant differences in causal beliefs were detected between Māori and New Zealand Europeans. |
Sayre, 2000 (18) | United States | 35 | Hospital | Participants endorsed both psychosocial and biogenetic beliefs. In this qualitative study, endorsement rates were not reported. |
Syrén and Hultsjö, 2014 (34) | Sweden | 33 | Outpatient units | Psychosocial and spiritual causes were the most frequently endorsed. In this qualitative study, endorsement rates were not reported. Some participants did not regard psychosis as a problem and believed that they had been exclusively selected for extraordinary missions. |
Wall et al., 2017 (64) | United Kingdom | 72f | Hospital | Stress or worry was the most endorsed explanation among both forensic (65%, N=26) and general psychiatry (81%, N=32) inpatients. Forensic inpatients were more likely than general psychiatry inpatients to attribute psychosis to drug use (55%, N=22 vs. 38%, N=12). |
Watson et al., 2006 (51) | United Kingdom | 100 | National Health Service (NHS) Trusts | Internal causal attributions were widely endorsed, with 68% (N=∼68) agreeing that “My state of mind played a major part in causing my current problems/illness.” Attributing psychosis to one’s state of mind was significantly related to higher levels of anxiety (rs=.27, p<.01) and attributing psychosis to stress was related to higher levels of self-esteem (rs=.27, p<.01),. |
Williams and Steer, 2011 (2) | United Kingdom | 66 | 3 NHS mental health centers | The most frequently endorsed beliefs were that psychosis was caused by stress or worry, a trauma, chemical imbalance, thinking about things too much, mental attitude, or family problems. Only descriptive information was presented regarding causal beliefs, because the scale’s items were not easily classified into meaningful dimensions, according to the authors. |
Yalvaç et al., 2017 (65) | Turkey | 148 | Outpatient psychiatry units | “Internal problems” was the most endorsed cause by participants from Ankara (58%, N=57), followed by “family problems” (44%, N=44). Among those from Van province, the most endorsed cause was “no idea” (38%, N=18), followed by “family problems” (31%, N=15). |
Spiritual-religious causal beliefs.
Beliefs related to personal characteristics.
Beliefs that the psychotic experience is part of the human experience.
Differences in Beliefs Between People With Psychosis and MHPs
Study | Country | Participants | N | Setting | Outcomes |
---|---|---|---|---|---|
Napo et al., 2012 (45) | Mali | People with psychosis and medical practitioners, including a traditional healer | 20a | Hospital | Psychosocial factors, such as breaking of taboos and family conflicts, were seen by people with psychosis and by experts as playing an important role in causing schizophrenia. In this qualitative study, endorsement rates were not reported. |
Luderer and Böcker, 1993 (26) | Germany | People with psychosis and psychiatrists | 51b | Psychiatric hospital | Psychiatrists saw psychoses as biological disorders (endorsement rates were not reported). Among people with psychosis, only 24% stressed the idea of an underlying biological disorder, 41% attributed schizophrenia to their living conditions, and 35% attributed it to their personal characteristics. |
Tarakita et al., 2018 (27) | Japan | People with psychosis and MHPs (medical staff other than psychiatrists) | 559c | Hospitals and mental clinic | The authors created 4 subscales (psychosocial, biological, environmental, and cultural) based on 2 measures. Medical staff predominantly endorsed biological conceptions, and people with psychosis endorsed psychosocial beliefs. Only factor loading was reported for these subscales. |
Van Dorn et al., 2005 (24) | United States | People with psychosis and MHPs, including psychiatrists, psychologists, clinical social workers and case managers | 189d | MHPs were from community mental health clinics and hospitals (mailed survey); for people with psychosis, the setting was not mentioned. | “Chemical imbalance” was the most frequently endorsed case by both people with psychosis (89%, N=93) and MHPs (98%, N=82). People with psychosis were significantly less likely than MHPs to endorse a chemical imbalance as a cause. Psychosocial causes were more frequently endorsed by people with psychosis (85%, N=88,) than MHPs (67%, N=55), and biogenetic causes were more frequently endorsed by MHPs (96%, N=79) than by people with psychosis (74%, N=77). |
Causal Beliefs and Stigma
Discussion
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