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Dive into the research topics where Katharine A. Phillips is active.

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Featured researches published by Katharine A. Phillips.


Journal of Nervous and Mental Disease | 1997

Gender differences in body dysmorphic disorder

Katharine A. Phillips; Susan F. Diaz

Gender differences in body dysmorphic disorder (BDD) have received little investigation. This study assessed gender differences in 188 subjects with BDD who were evaluated with instruments to assess demographic characteristics, clinical features of BDD, treatment history, and comorbid Axis I disorders. Ninety-three (49%) subjects were women, and 95 (51%) were men. Men and women did not significantly differ in terms of most variables examined, including rates of major depression, although women were more likely to be preoccupied with their hips and their weight, pick their skin and camouflage with makeup, and have comorbid bulimia nervosa. Men were more likely to be preoccupied with body build, genitals, and hair thinning, use a hat for camouflage, be unmarried, and have alcohol abuse or dependence. Although men were as likely as women to seek nonpsychiatric medical and surgical treatment, women were more likely to receive such care. Men, however, were as likely as women to have cosmetic surgery. Although the clinical features of BDD appear remarkably similar in women and men, there are some differences, some of which reflect those found in the general population, suggesting that cultural norms and values may influence the content of BDD symptoms.


Comprehensive Psychiatry | 2003

Axis I Comorbidity in Body Dysmorphic Disorder

John Gunstad; Katharine A. Phillips

Although research on body dysmorphic disorder (BDD) has increased in recent years, this disorders comorbidity has received little empirical attention. Further work in this area is needed, as it appears that most patients with BDD have at least one comorbid disorder. This study examined axis I comorbidity and clinical correlates of comorbidity in 293 patients with DSM-IV BDD, 175 of whom participated in a phenomenology study and 118 of whom participated in treatment studies of BDD. Subjects were evaluated with the Structured Clinical Interview for DSM-III-R (SCID-P) and a semistructured instrument to obtain information on clinical correlates. Comorbidity was common, with a mean of more than two lifetime comorbid axis I disorders in both the phenomenology and treatment groups. In both groups, the most common lifetime comorbid axis I disorders were major depression, social phobia, obsessive compulsive disorder (OCD), and substance use disorders. Social phobia usually began before onset of BDD, whereas depression and substance use disorders typically developed after onset of BDD. A greater number of comorbid disorders was associated with greater functional impairment and morbidity in a number of domains. Thus, axis I comorbidity is common in BDD patients and associated with significant functional impairment.


Plastic and Reconstructive Surgery | 2004

A review of psychosocial outcomes for patients seeking cosmetic surgery.

Roberta J. Honigman; Katharine A. Phillips; David Castle

The authors reviewed the literature on psychological and psychosocial outcomes for individuals undergoing cosmetic surgery, to address whether elective cosmetic procedures improve psychological well-being and psychosocial functioning and whether there are identifiable predictors of an unsatisfactory psychological outcome. They conducted a search of appropriate computerized databases for studies that evaluated psychological and psychosocial status both before and after elective cosmetic surgery. They identified 37 relevant studies of varying cosmetic procedures that utilized disparate methodologies. Overall, patients appeared generally satisfied with the outcome of their procedures, although some exhibited transient and some exhibited longer-lasting psychological disturbance. Factors associated with poor psychosocial outcome included being young, being male, having unrealistic expectations of the procedure, previous unsatisfactory cosmetic surgery, minimal deformity, motivation based on relationship issues, and a history of depression, anxiety, or personality disorder. Body dysmorphic disorder was also recognized by some studies as a predictor of poor outcome, a finding reinforced by reference to the psychiatric literature. The authors conclude that although most people appear satisfied with the outcome of cosmetic surgical procedures, some are not, and attempts should be made to screen for such individuals in cosmetic surgery settings.


Psychological Medicine | 2010

What is a mental/psychiatric disorder? From DSM-IV to DSM-V

Dan J. Stein; Katharine A. Phillips; Derek Bolton; K. W. M. Fulford; John Z. Sadler; Kenneth S. Kendler

The distinction between normality and psychopathology has long been subject to debate. DSM-III and DSM-IV provided a definition of mental disorder to help clinicians address this distinction. As part of the process of developing DSM-V, researchers have reviewed the concept of mental disorder and emphasized the need for additional work in this area. Here we review the DSM-IV definition of mental disorder and propose some changes. The approach taken here arguably takes a middle course through some of the relevant conceptual debates. We agree with the view that no definition perfectly specifies precise boundaries for the concept of mental/psychiatric disorder, but in line with a view that the nomenclature can improve over time, we aim here for a more scientifically valid and more clinically useful definition.


Body Image | 2009

Multidimensional body image comparisons among patients with eating disorders, body dysmorphic disorder, and clinical controls: A multisite study☆

Joshua Hrabosky; Thomas F. Cash; David Veale; Fugen Neziroglu; Elizabeth A. Soll; David M. Garner; Melissa Strachan-Kinser; Bette Bakke; Laura J. Clauss; Katharine A. Phillips

Body image disturbance is considered a core characteristic of eating disorders and body dysmorphic disorder (BDD), however its definition has been unclear within the literature. This study examined the multidimensional nature of body image functioning among individuals with either anorexia nervosa (AN; n=35), bulimia nervosa (BN; n=26), or BDD (n=56), relative to female (n=34) and male (n=36) psychiatric controls. Participants were recruited from 10 treatment centers in the United States and England and completed psychometrically validated and standardized self-report measures of body image. Overall, the AN, BN, and BDD groups were characterized by significantly elevated disturbances in most body image dimensions relative to their gender-matched clinical controls. There was variability, however, in the comparisons among the three groups of interest, including foci of body dissatisfaction and body image coping patterns. On omnibus indices of body image disturbance and body image quality of life, patients with BDD reported more body image impairment than those with eating disorders. Although AN, BN, and BDD are characterized by body image disturbances, similar and partially distinctive cognitive, behavioral, and emotional elements of body image functioning exist among these groups. The studys empirical and clinical implications are considered.


Comprehensive Psychiatry | 1996

Are impulse-control disorders related to bipolar disorder?

Susan L. McElroy; Harrison G. Pope; Paul E. Keck; James I. Hudson; Katharine A. Phillips; Stephen M. Strakowski

We reviewed available evidence regarding a possible relationship between impulse-control disorders (ICDs) and bipolar disorder. Studies examining the phenomenology, course, comorbidity, family history, biology, and treatment response of ICDs were compared with similar studies of bipolar disorder. Although no studies directly compare a cohort of ICD patients with a cohort of mood disorder patients, available data suggest that ICDs and bipolar disorder share a number of features: (1) phenomenologic similarities, including harmful, dangerous, or pleasurable behaviors, impulsivity, and similar affective symptoms and dysregulation; (2) onset in adolescence or early adulthood and episodic and/or chronic course; (3) high comorbidity with one another and similar comorbidity with other psychiatric disorders; (4) elevated familial rates of mood disorder; (5) possible abnormalities in central serotonergic and noradrenergic neurotransmission; and (6) response to mood stabilizers and antidepressants. However, ICDs and bipolar disorder differ in important respects. In particular, some ICDs may be more closely related to obsessive-compulsive disorder (OCD) than is bipolar disorder. Although the similarities between ICDs and bipolar disorder may be coincidental, they suggest that the two conditions may be related and thus may share at least one common pathophysiologic abnormality. To explain this possible relationship, we hypothesize that impulsivity and bipolarity (or mania) are related, that compulsivity and unipolarity (or depression) are similarly related, and that each state may represent opposing poles of related, or even a single, psychological dimension.


Journal of The International Neuropsychological Society | 2000

Characteristics of memory dysfunction in body dysmorphic disorder

Thilo Deckersbach; Cary R. Savage; Katharine A. Phillips; Sabine Wilhelm; Ulrike Buhlmann; Scott L. Rauch; Lee Baer; Michael A. Jenike

Although body dysmorphic disorder (BDD) is receiving increasing empirical attention, very little is known about neuropsychological deficits in this disorder. The current study investigated the nature of memory dysfunction in BDD, including the relationship between encoding strategies and verbal and nonverbal memory performance. We evaluated 17 patients with BDD and 17 healthy controls using the Rey-Osterrieth Complex Figure Test (RCFT) and the California Verbal Learning Test (CVLT). BDD patients differed significantly from healthy controls on verbal and nonverbal learning and memory indices. Multiple regression analyses revealed that group differences in free recall were statistically mediated by deficits in organizational strategies in the BDD cohort. These findings are similar to patterns previously observed in obsessive-compulsive disorder (OCD), suggesting a potential relationship between OCD and BDD. Studies in both groups have shown that verbal and nonverbal memory deficits are affected by impaired strategic processing.


Journal of Nervous and Mental Disease | 1998

Tourette's disorder with and without obsessive-compulsive disorder in adults: are they different?

Barbara J. Coffey; Euripedes C. Miguel; Joseph Biederman; Lee Baer; Scott L. Rauch; Richard L. O'Sullivan; Cary R. Savage; Katharine A. Phillips; Andrea Borgman; Mathew I. Green-leibovitz; Ellen Moore; Kenneth S. Park; Michael A. Jenike

Clinical research has documented a bidirectional overlap between Tourettes disorder (TD) and obsessive-compulsive disorder (OCD) from familial-genetic, phenomenological, comorbidity, and natural history perspectives. Patients with Tourettes disorder plus obsessive-compulsive disorder (TD + OCD), a putative subtype, share features of both. The purpose of this exploratory study was to evaluate correlates of patients with TD, OCD, and TD + OCD to determine whether TD + OCD is a subtype of TD, OCD, or an additive form of both. Sixty-one subjects with TD, OCD, or TD + OCD were evaluated with the Structured Clinical Interview for DSM-III-R supplemented with additional modules. The three groups differed in the rates of bipolar disorder (p < .04), social phobia (p < .02), body dysmorphic disorder (p < .002), attention deficit hyperactivity disorder (p < .03), and substance use disorders (p < .04). These findings were accounted for by the elevated rates of the disorders in the TD + OCD group compared with the TD and OCD groups. These finding are most consistent with the hypothesis that TD + OCD is a more severe disorder than TD and OCD and may be more etiologically linked to TD than to OCD. These findings highlight the importance of assessment of the full spectrum of psychiatric comorbidity in patients with TD and OCD.


Psychiatry Research-neuroimaging | 2006

Clinical features of body dysmorphic disorder in adolescents and adults

Katharine A. Phillips; Elizabeth R. Didie; William Menard; Maria E. Pagano; Christina Fay; Risa B. Weisberg

Body dysmorphic disorder (BDD) usually begins during adolescence, but its clinical features have received little investigation in this age group. Two hundred individuals with BDD (36 adolescents; 164 adults) completed interviewer-administered and self-report measures. Adolescents were preoccupied with numerous aspects of their appearance, most often their skin, hair, and stomach. Among the adolescents, 94.3% reported moderate, severe, or extreme distress due to BDD, 80.6% had a history of suicidal ideation, and 44.4% had attempted suicide. Adolescents experienced high rates and levels of impairment in school, work, and other aspects of psychosocial functioning. Adolescents and adults were comparable on most variables, although adolescents had significantly more delusional BDD beliefs and a higher lifetime rate of suicide attempts. Thus, adolescents with BDD have high levels of distress and rates of functional impairment, suicidal ideation, and suicide attempts. BDDs clinical features in adolescents appear largely similar to those in adults.


Journal of Psychiatric Research | 2004

Psychosis in body dysmorphic disorder.

Katharine A. Phillips

Body dysmorphic disorder (BDD) has both psychotic and nonpsychotic variants, which are classified as separate disorders in DSM-IV (delusional disorder and a somatoform disorder). Despite their separate classification, available evidence indicates that BDDs delusional and nondelusional forms have many similarities (although the delusional variant appears more severe), suggesting that they may actually be the same disorder, characterized by a spectrum of insight. And contrary to what might be expected, BDDs delusional form, although classified as a psychotic disorder, appears to respond to serotonin-reuptake inhibitors alone. These and other data suggest that a dimensional view of psychosis (in particular, delusions) in these disorders may be more accurate than DSMs current categorical view. A dimensional model might also facilitate more consistent and accurate classification of other disorders that are likely characterized by a spectrum of insight, such as obsessive compulsive disorder, hypochondriasis, and anorexia nervosa. Further research is needed to better understand these classification issues, which likely have treatment implications.

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Dan J. Stein

University of Cape Town

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Robert L. Stout

Decision Sciences Institute

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David Castle

University of Melbourne

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