Clandestine Psychopathology: Unrecognized Dissociative
Karni Ginzburg, PhD,* Eli Somer, PhD,† Gali Tamarkin, MSW,† and Lilach Kramer, MSW†
A large scale survey among mental health professionals in
Abstract: Surveys among Israeli mental health professionals found that
Israel found that 63% of those interviewed had no experience
almost half of them doubt the validity of dissociative disorders (DD) and
either diagnosing or treating DD patients (Somer, 2000). These
have no experience in either diagnosing or treating DD patients. These
findings, ostensibly in line with arguments that both the diagnosis
findings, in line with arguments that DDs are socially construed North
and its manifestations are socially construed North American
American phenomena, call for the need to investigate it in Israel. Eighty-one
phenomena (see Spanos, 1994), call for the need to investigate
psychiatric inpatients were screened for dissociative pathology. Participants
the validity of DD in Israel. This study reports the results of
categorized as having low levels of dissociation (n ϭ 26) and those demon-
screening for DD among Israeli psychiatric inpatients.
strating high levels of dissociation (n ϭ 22) were asked to participate in aStructured Clinical Interview for the DSM—Dissociative Disorders—Re-
vised. One-quarter of all participants were identified as having probabledissociative psychopathology. Based on the Structured Clinical Interview for
Study Design
the DSM—Dissociative Disorders—Revised, estimates of DD range be-
A two-stage methodological approach common to DD prev-
tween 12 and 21%. None of the participants had any indication of a DD
alence studies was employed (e.g., Tutkun et al., 1998). The first
diagnosis in their medical records. Diagnosis of personality disorder and
stage involved an initial screening of the target population by a
psychiatric comorbidity were related to the likelihood of a DD diagnosis and
self-report questionnaire. In the second stage, a structured clinical
interview was conducted with available individuals who scored
Key Words: Dissociative disorders, psychiatric inpatients, childhood
above a cutoff point considered indicative of probable dissociative
pathology. For comparison purposes, we also included a group of
(J Nerv Ment Dis 2010;198: 378 –381)
participants who scored below a cutoff point indicating the probableabsence of DD. Another advantage of the current study relates to thescreening instrument employed. Many previous studies used theDissociative Experiences Scale (Bernstein and Putnam, 1986) for
Despitetheaccumulationofsupportiveevidence,thediagnosis screening purposes, which in addition to the assessment of patho-
of dissociative disorders (DD) is still controversial. Surveys
logical dissociation, also assesses manifestations of normative dis-
among mental health professionals revealed that almost half of
sociation, such as absorption and imaginative involvement. In the
them regard DD as dubiously valid, or invalid, disorders (Leo-
current study, we used an extensive screening tool that focuses
nard et al., 2005). Thus, it is not surprising there are indications
exclusively on dissociative pathology.
that DDs are underdiagnosed in psychiatric care. That is, al-
Participants and Data Collection
though systematic screening among psychiatric patients revealed
Ninety-six psychiatric inpatients who did not have an ap-
that a considerable proportion of patients, ranging between 4 and
pointed legal guardian, hospitalized for at least 1 week in acute
29%, meet the diagnostic criteria for DD (e.g., Foote et al., 2006;
wards of 2 psychiatric hospitals, were approached by the research
Gast et al., 2001), most of those who were diagnosed by the
staff. Eighty-one (84%) patients consented to participate in the study
research staff with DD (79%– 84%) did not have a dissociative
(stage 1). In the second stage, inpatients who were categorized as
diagnosis recorded in their clinical files (Foote et al., 2006;
having low levels of dissociation ͓Multidimensional Inventory of
Dissociation—Hebrew Version (H-MID) scores Յ10; n ϭ 26͔ and
There is only scarce evidence regarding the actual diag-
those demonstrating high levels of dissociation (H-MID scores Ն30;
noses received by undetected DD patients. There are indications
n ϭ 22) were invited to participate in a Structured Clinical Interview
that many may have received multiple diagnoses (Tutkun et al.,
for the DSM—Dissociative Disorders—Revised (H-SCID-D-R) in-
1998), possibly reflecting either real comorbidity or clinicians’
terview. Some of these patients were discharged by the time of the
uncertainty. The few studies that traced the clinical records of
second stage, whereas others refused to be interviewed. Twenty-
DD patients indicated that affective disorders were the most
three participants (10 low dissociators and 13 high dissociators)
prevalent disorder diagnosed by their therapists (Tutkun et al.,
were eventually interviewed in the second stage. A series of com-
1998). However, the validity of the diagnosis of affective disor-
parisons indicated that stage 2 participants and dropouts did not
der turned out to be questionable in light of reports of relatively
differ in age, gender, level of education, history of childhood
low levels of dissociation among individuals with affective
maltreatment, onset age of the mental health disorder, or number of
Fifty-nine percent of the participants were men. Participants’
age ranged between 18 and 65 years ͓mean (M) ϭ 34.18, standarddeviation (SD)
*School of Social Work, Tel Aviv University, Tel Aviv, Israel; and †School of
ϭ 11.3͔. Most were single (61.7%), the rest were
Social Work, University of Haifa, Haifa, Israel.
either married (12.3%) or separated/divorced (25.9%). Half the
Send reprint requests to Karni Ginzburg, PhD, School of Social Work, Tel Aviv
sample had 12 years of education (51.9%), 28.4% had fewer years
University, Tel Aviv, 69978, Israel. E-mail: karnig@post.tau.ac.il.
of education, and the rest (19.8%) completed Ͼ12 years of educa-
Copyright 2010 by Lippincott Williams & Wilkins
tion. Most of the inpatients were unemployed during data collection
ISSN: 0022-3018/10/19805-0378DOI: 10.1097/NMD.0b013e3181da4d65
The Journal of Nervous and Mental Disease • Volume 198, Number 5, May 2010
The Journal of Nervous and Mental Disease • Volume 198, Number 5, May 2010
One half of the sample (55.6%) carried a diagnosis of schizo-
disorder, 1 was identified as DID, and 8 patients were assessed as
phrenia, and the records of one-third (34.5%) indicated an affective
suffering from dissociative disorder not otherwise specified. None of
disorder. Fourteen percent of the patients were diagnosed as having
the low dissociators was diagnosed as having DD. Thus, there was
a personality disorder, with or without a comorbid disorder. Eighty-
a considerable agreement between H-SCID-D-R diagnoses and
five percent had a single psychiatric disorder, and the rest (14.8%)
H-MID categorization (2 ϭ 13.6, p Ͻ 0.001, ϭ 0.77). Similarly,
carried 2 or more concurrent diagnoses. During data collection,
a strong association was found between the severity of dissociative
patients had been hospitalized for an average of 4.61 weeks (SD ϭ
pathology as was estimated by the H-MID, and H-SCID-D-R (r ϭ
4.12). Mean number of previous hospital admissions was 4.34
The study was undertaken after institutional Helsinki com-
Dissociative Symptoms and Psychiatric History
mittees approved the research design. Informed consent was ob-
Examination of the patients’ psychiatric records revealed that
tained from all participants before data collection.
none of the 10 diagnosed DD patients had been previously identified
Instruments
as suffering from any dissociative psychopathology. The most prev-
Biographical variables: Data regarding gender, age, marital
alent disorder in the sample’s psychiatric records was affective
status, number of years of education, and occupation were gathered
disorder (6), followed by personality disorder (5), schizophrenia (3),
through self-report questionnaires. Data on psychiatric diagnosis,
adjustment disorder (1), and substance abuse disorder (1). Four of
number of admissions, and length of current hospitalization were
the DD patients carried a single psychiatric diagnosis whereas the
records of the 6 newly diagnosed DDs indicated a concurrent
Childhood maltreatment was assessed by The Child Trauma
diagnosis of Ͼ1 psychiatric disorder.
Questionnaire (Bernstein et al., 1994). This self-report measure
Severity of dissociative symptomatology as measured by the
assesses childhood maltreatment history, manifested as emotional
H-MID was not associated with existing psychiatric diagnosis. More
abuse or neglect, physical abuse or neglect, and sexual abuse.
specifically, inpatients diagnosed with schizophrenia did not differ
The Child Trauma Questionnaire has been demonstrated to
in their mean H-MID score from those with affective disorders
have strong psychometric properties in both clinical and community
t(71) ϭ 1.8, n.s͔. Severity of dissociative symptoms was, however,
samples (Bernstein et al., 1994). Alfa Cronbach in the current
associated with an existing psychiatric diagnosis of a personality
sample was 0.84, demonstrating good internal consistency.
disorder. That is, inpatients carrying a diagnosis of personality
Dissociative symptoms were assessed by the H-MID. This
disorder (with or without another comorbid diagnosis) scored higher
self-report inventory, developed by Dell (2006), was translated into
on the H-MID (M ϭ 39.07, SD ϭ 13.75) compared with those who
Hebrew and validated by Somer and Dell (2005).
were not seen as personality disordered ͓M ϭ 17.47, SD ϭ 16.54;
The inventory is comprised of 168 dissociation items and 50
t(79) ϭ 4.11, p Ͻ 0.05͔.
validity items. Respondents are asked to indicate how often they
Severity of dissociative symptomatology was also associated
experience each symptom when not under the influence of alcohol or
with the number of comorbid psychiatric diagnoses assigned to the
drugs. Total score ranges between 0 and 100. A score of 30 and
patient. That is, patients whose records specified 2 or more concur-
above is considered a cutoff mark indicative of probable dissociative
ring psychiatric diagnoses had higher levels of pathological disso-
psychopathology, whereas a score of 10 and below is considered an
ciation (M ϭ 45.18, SD ϭ 16.45) than those who had received a
indication of a low level of dissociation (P.F. Dell, personal com-
single psychiatric diagnosis ͓M ϭ 15.3, SD ϭ 13.06; t(79) ϭ 7.4,
Previous studies demonstrated strong psychometric properties
Finally, neither number of previous psychiatric hospitaliza-
(Dell, 2006; Somer and Dell, 2005). Alfa Cronbach in the current
tions nor onset age of the mental health disorder was associated with
sample was 0.99, indicating excellent internal consistency.
severity of dissociative symptoms (r ϭ 0.06, n.s.; r ϭ Ϫ0.05, n.s.,
The Structured Clinical Interview for DSM-IV Dissociative
Disorders—Hebrew version (H-SCID-D-R), developed by Stein-berg et al. (1990), was translated to Hebrew by Somer et al. (2001). Biographical Data and Dissociative Symptoms
The SCID-D is reported to have a high discriminant validity and
Linear regression was conducted to examine the unique and
inter-rated reliability ( ϭ 0.88; Steinberg et al., 1990) and is
cumulative contribution of patients’ biographical data (gender, age,
considered a gold standard for the assessment of DDs. This inter-
and childhood maltreatment), current psychiatric comorbidity (hav-
view assesses DDs, according to DSM-IV-TR criteria and provides
ing at least 2 concurring diagnoses), and the interactions of child-
severity ranking of the identified dissociative pathology. The third
hood maltreatment with age, gender, and psychiatric comorbidity to
and fourth authors, licensed clinicians and graduate students, re-
the variance of pathological dissociation. Z scores were computed
ceived 5 hours of training and ongoing supervision by the second
author (E.S.) on the administration and scoring of the H-SCID-D-R.
The regression model explained 40% of the variance of
dissociative psychopathology ͓F(7,80) ϭ 7.71, p Ͻ 0.001͔. Child-
hood maltreatment ( ϭ 0.31; p Ͻ 0.01), psychiatric comorbidity( ϭ 0.40, p Ͻ 0.01), and the interaction between age and childhood
Dissociative Symptoms and Psychopathology
maltreatment ( ϭ Ϫ0.30, p Ͻ 0.01) made a significant contribution
Twenty-two participants (27.2%) scored at, or above, an
to the explained variance of dissociative psychopathology. An in-
H-MID cutoff mark indicative of probable dissociative psychopa-
verse relationship between childhood abuse and dissociative psy-
thology. Forty-one percent (n ϭ 33, 40.7%) were classified as
chopathology was identified: the more severe the childhood mal-
having a moderate level of pathological dissociation, and approxi-
treatment, the higher the reported dissociative psychopathology, and
mately one-third (n ϭ 26, 32.1%) scored at the lower end of the
inpatients identified as suffering from a single psychiatric disorder
endorsed lower levels of dissociative symptomatology than those
Of the 13 high dissociators who were interviewed in the
second stage, 10 (77%) were diagnosed with the H-SCID-D-R, as
To explore the specific nature of the interaction, a median
suffering from a DD: 1 was diagnosed as having a depersonalization
split analysis was conducted for age (median ϭ 32), and respondents
2010 Lippincott Williams & WilkinsThe Journal of Nervous and Mental Disease • Volume 198, Number 5, May 2010
were categorized into 2 age groups (32 years old or younger, and
Tutkun et al., 1998). The weaker effect of childhood maltreatment
older than 32 years). Pearson correlations indicated a significant
among older patients may be a possible result of decreasing disso-
correlation between childhood maltreatment and dissociative psy-
ciative experiences with age (Maaranen et al., 2008) and some
chopathology among the younger (r ϭ 0.58, p Ͻ 0.001) but not
post-traumatic adaptation that may have occurred over time.
among the older participants (r ϭ 0.19, n.s.).
The findings of this study should be considered in light of its
limitations. The most salient weak point is the modest sample sizeand rate of participant attrition. Although response rate was satisfy-
DISCUSSION
ing in the first assessment, due to hospital discharge only half of the
About one-quarter of the participants were identified with a
subsample that was screened to participate in the second assessment
probable dissociative psychopathology. H-SCID-D-R with available
was allocated and consented to participate. Although participants
eligible patients identified 12% of the entire inpatient sample as
and dropouts did not differ in their demographic characteristics,
having a DD. Based on the high agreement between H-SCID-D-R
exposure to childhood maltreatment, or psychiatric history, the
diagnoses and the H-MID categorization, it is plausible to assume
possibility of selective attrition cannot be completely ruled out.
that rates of DD in the complete sample were actually higher,
The findings of the study imply that dissociative disordered
probably closer to 21%. The fact that these incidence rates are
patients hospitalized for psychiatric care might not be accurately
similar to those reported in other studies (e.g., Foote et al., 2006,
diagnosed and consequently might not receive optimal care. There is
Mueller et al., 2007), supports the validity of the DD and is
evidence that most DD patients spend Ͼ3 years in the psychiatric
inconsistent with arguments that DDs reflect socially construed
system and one-third of these see 6 or more clinicians before a DD
North American phenomena (see Spanos, 1994).
diagnosis is made (Leonard et al., 2005). In light of the adverse
Similar to previous reports (Foote et al., 2006; Mueller et al.,
consequences of misdiagnosis, in general, and among the chroni-
2007), none of the psychiatric inpatients diagnosed as DD had a
cally traumatized, in particular, the findings of the current study
prior indication for this diagnosis in their clinical records. Despite
stress the critical need for quality DD diagnostic training among
the growing body of evidence supporting the validity of DDs, these
patients continue to be under- or misdiagnosed, under- or mistreated,and insufficiently respected (Spiegel, 2006). Various causes mayexplain this troubling reality. First, the inability of many DD patients
REFERENCES
to express their internal experiences can be explained by their
Bernstein DP, Fink L, Handelsman L, Foote J, Lovejoy M, Wenzel K, Sapareto
habitual silence acquired during years of hiding their secret of abuse,
E, Ruggiero J (1994) Initial reliability and validity of a new retrospectivemeasure of child abuse and neglect. Am J Psychiatry. 151:1132–1136.
and by their motivation to present a healthier appearance to conceal
Bernstein EM, Putnam FW (1986) Development, reliability and validity of a
their chaotic internal life (Spiegel, 2006). Another explanation for
dissociation scale. J Nerv Ment Dis. 174:727–735.
the underdiagnosis of many of our respondents might be found in
Dell PF (2006) The multidimensional inventory of dissociation (MID): A com-
clinicians’ skepticism, lack of awareness, or poor diagnostic skills
prehensive measure of pathological dissociation. J Trauma Dissociation. 7:77–
(e.g., Somer, 2000). Misperceptions regarding the rarity of these
disorders (Leonard et al., 2005) and clinicians’ reluctance to recog-
Dell PF (2009) The phenomena of pathological dissociation. In PF Dell, JA
nize and interact with the horrific results of abuse and the demanding
O’Neil (Eds), Dissociation and the Dissociative Disorders: DSM-V and Be-
complexity of these disorders (i.e., Perlman, 1995) may lower
clinicians’ motivation to acquire the necessary knowledge and skills.
Foote B, Smolin Y, Kaplan M, Legatt ME, Lopschitz D (2006) Prevalence of
dissociative disorders in psychiatric outpatients. Am J Psychiatry. 163:623–
Finally, underdiagnosis of DDs may also be associated with prob-
lematic diagnostic criteria. Although DSM-based criteria require
Gast U, Rodewald F, Nickel V, Emrich HM (2001) Prevalence of dissociative
external and observable symptoms, most dissociative phenomenol-
disorders among psychiatric inpatients in a German university clinic. J Nerv
ogy is internal and subjective (Dell, 2009). The most prevalent DD
in our study was the unspecific dissociative disorder not otherwise
Ginzburg K, Ein-Dor T, Solomon Z (in press) Comorbidity of posttraumatic stress
specified. This finding, in line with previous reports (e.g., Sar et al.,
disorder, anxiety and depression: A 20-year longitudinal study of war veterans.
2007), illustrates the inadequacy of the current DD taxonomy and
supports arguments favoring revision of the DSM diagnostic criteria
Leonard D, Brann S, Tiller J (2005) Dissociative disorders: Pathways to diagnosis,
clinician attitudes and their impact. Aust N Z J Psychiatry. 39:940 –946.
Maaranen P, Tanskanen A, Hintikka J, Honkalampi K, Haatainen K, Koivumaa-
Consistent with previous findings (Tutkun et al., 1998), we
Honkanen H, Viinama¨ki H (2008) The course of dissociation in the general
found that the diagnosis of DD and the severity of dissociative
population: A 3-year follow-up study. Compr Psychiatry. 49:269 –274.
symptomatology are strongly associated with the existence of psy-
Mueller C, Moergeli H, Assaloni H, Schneider R, Rufer M (2007) Dissociative
chiatric comorbidity. That is, patients whose records specified 2 or
disorders among chronic and severely impaired psychiatric outpatients. Psy-
more different psychiatric diagnoses had higher levels of patholog-
chopathology. 40:470 – 471.
ical dissociation compared with patients who had received a single
Perlman SD (1995) One analyst’s journey into darkness: Countertransference
psychiatric diagnosis. This finding could reflect the complex conse-
resistance to recognizing sexual abuse, ritual abuse and multiple personalitydisorders. J Am Acad Psychoanal. 23:137–151.
quences of exposure to massive trauma. Previous findings demon-
Putnam FW, Carlson EB, Ross CA, Anderson G, Clark P, Torem M, Bowman ES,
strate the high prevalence of dual and triple comorbidity among
Coons PM (1996) Patterns of dissociation in clinical and non-clinical samples.
survivors of traumatic events (Ginzburg et al., in press). Alterna-
J Nerv Ment Dis. 184:673– 679.
tively, these findings may, again, expose clinicians’ difficulties in
Sar V, Akyu¨z G, Dogan O (2007) Prevalence of dissociative disorders among
recognizing DDs, as manifested in their attempts to describe their
women in the general population. Psychiatry Res. 149:169 –176.
patients’ complex or unusual clinical picture by a combination of
Somer E (2000) Israeli mental health professionals’ attitudes towards dissociative
disorders, reported incidence and alternative diagnoses considered. J TraumaDissociation. 1:21– 44.
The association of dissociative psychopathology with a re-
ported history of childhood maltreatment, a theorized etiological
Somer E, Dell PF (2005) The development and psychometric characteristics of the
Hebrew version of the Multidimensional Inventory of Dissociation (H-MID): A
idea, renders further construct validity to the phenomenon of DDs,
valid and reliable measure of pathological dissociation. J Trauma Dissociation.
in line with findings reported by others (e.g., Foote et al., 2006;
2010 Lippincott Williams & WilkinsThe Journal of Nervous and Mental Disease • Volume 198, Number 5, May 2010
Somer E, Dolgin M, Saadon M (2001) Validation of the Hebrew version of the
Steinberg M, Rounsaville B, Cicchetti DV (1990) The Structured Clinical Inter-
Dissociative Experiences Scale (H-DES) in Israel. J Trauma Dissociation.
view for DSM-III-R Dissociative Disorders. Preliminary report on a new
diagnostic instrument. Am J Psychiatry. 147:76 – 82.
Spanos MP (1994) Multiple identity enactments and multiple personality disorder:
¨ zpulat T, Yanık M, Kızıltan E (1998) Frequency
A sociocognitive perspective. Psychol Bull. 116:143–165.
of dissociative identity disorder among psychiatric inpatients in a Turkish
Spiegel D (2006) Recognizing traumatic dissociation. Am J Psychiatry. 163:566 –568.
university clinic. Am J Psychiatry. 155:800 – 806. 2010 Lippincott Williams & Wilkins
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