Punishment and compulsive avoidance behavior.
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Animals↗
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Characteristics of 36 subjects reporting compulsive sexual behavior.
OBJECTIVE: The authors describe the sociodemographic features, phenomenology, and psychiatric comorbidity of 36 subjects reporting compulsive sexual behavior. METHOD: Twenty-eight men and eight women who responded to advertisements for "persons ... who have a problem with compulsive sexual behavior" completed structured and semistructured assessments, including the Diagnostic Interview Schedule for DSM-III-R disorders (axis I) and the Structured Interview for DSM-III-R Personality Disorders, Revised (axis II). RESULTS: The typical subject was a 27-year-old man who reported experiencing compulsive sexual behavior for nearly 9 years. Sexual behavior was described as excessive and poorly controlled and was associated with either subjective distress or impairment in interpersonal or occupational functioning or as overly time-consuming. Fourteen subjects (39%) reported a history of major depression or dysthymia, 15 (42%) a history of phobic disorder, and 23 (64%) a history of substance use disorder. Personality disorders were quite frequent, particularly the paranoid, histrionic, obsessive-compulsive, and passive-aggressive subtypes. The compulsive sexual behavior was quite varied and included both paraphilic (e.g., cross-dressing) and nonparaphilic (e.g., compulsive masturbation) types. CONCLUSIONS: Compulsive sexual behavior may be a clinically useful concept, but it describes a heterogeneous group of individuals with substantial psychiatric comorbidity and diverse behavioral problems.
Adolescent↗
Nefazodone and the treatment of nonparaphilic compulsive sexual behavior: a retrospective study.
BACKGROUND: Recent reports suggest that individuals with nonparaphilic compulsive sexual behavior can be treated pharmacologically with selective serotonin reuptake inhibitors (SSRIs) to control sexual obsessions and compulsions. However, these medications have produced sexual side effects that may limit long-term use, particularly as individuals strive to reestablish healthy sexual relationships. Nefazodone is an antidepressant that is not associated with the sexual side effects of other SSRIs. We examined retrospective data from our clinic to investigate whether nefazodone has utility in the treatment of nonparaphilic compulsive sexual behavior. METHOD: Fourteen subjects who met DSM-IV criteria for sexual disorder NOS as well as criteria used by our research group for nonparaphilic compulsive sexual behavior and who had been treated with nefazodone were selected from patient charts at our clinic. The treating physician abstracted information from the charts regarding comorbid psychiatric conditions, medication, dosage, treatment response, and side effects. RESULTS: In this study, the mean dosage of nefazodone was 200 mg/day. Of the subjects who remained on long-term nefazodone therapy, 6 (55%) reported good control of sexual obsessions and compulsions, and 5 (45%) reported a remission of sexual obsessions and compulsions. CONCLUSION: Results from this preliminary retrospective study suggest that nefazodone decreases the frequency of sexual obsessions and compulsions but does not produce the undesired sexual side effects caused by SSRI treatment.
Adult↗
Expression of 4 genes between chromosome 15 breakpoints 1 and 2 and behavioral outcomes in Prader-Willi syndrome.
Prader-Willi syndrome is a neurodevelopmental disorder that is characterized by infantile hypotonia, feeding difficulties, hypogonadism, mental deficiency, hyperphagia (leading to obesity in early childhood), learning problems, and behavioral difficulties. A paternal 15q11-q13 deletion is found in approximately 70% of patients with Prader-Willi syndrome, approximately 25% have uniparental maternal disomy 15, and the remaining 2% to 5% have imprinting defects. The proximal deletion breakpoint in the 15q11-q13 region occurs at 1 of 2 sites located within either of 2 large duplicons allowing for the identification of 2 deletion subgroups. The larger, type I (TI) deletion involves breakpoint 1, which is close to the centromere, whereas the smaller, type II (TII) deletion involves breakpoint 2, located approximately 500 kilobases distal to breakpoint 1. Breakpoint 3 is located at the distal end of the 15q11-q13 region and common to both typical deletion subgroups. Analyses of the genetic subtypes of Prader-Willi syndrome to date have primarily compared individuals with typical deletion and uniparental maternal disomy 15 without grouping the individuals with a deletion into TI or TII. Distinct differences have been reported between individuals with Prader-Willi syndrome resulting from deletion compared with uniparental maternal disomy 15 in physical, cognitive, and behavioral parameters. We previously presented the first assessment of clinical differences in individuals with Prader-Willi syndrome categorized as having type I or II deletions. Adaptive behavior, obsessive-compulsive behaviors, reading, math, and visual-motor integration assessments were generally poorer in individuals with Prader-Willi syndrome and the TI deletion compared with subjects with Prader-Willi syndrome with the TII deletion or uniparental maternal disomy 15. Four genes (NIPA1, NIPA2, CYFIP1, and GCP5) have been identified in the chromosomal region between breakpoints 1 and 2 and are implicated in compulsive behavior and lower intellectual ability observed in individuals with Prader-Willi syndrome with TI versus TII deletions. We quantified messenger-RNA levels of these 4 genes in actively growing lymphoblastoid cells derived from 8 subjects with Prader-Willi syndrome with the TI deletion (4 males, 4 females; mean: age 25.2 +/- 8.9 years) and 9 with the TII deletion (3 males, 6 females; mean age: 19.5 +/- 5.8 years). Messenger-RNA levels were correlated with validated psychological and behavioral scales administered by trained psychologists blinded to genotype status. Messenger RNA from NIPA1, NIPA2, CYFIP1, and GCP5 was reduced but detectable in the subjects with Prader-Willi syndrome with the TI deletion, supporting biallelic expression. For the most part, messenger-RNA values were positively correlated with assessment parameters, indicating a direct relationship between messenger-RNA levels and better assessment scores, with the highest correlation for NIPA2. The coefficient of determination indicated the quantity of messenger RNA of the 4 genes explained from 24% to 99% of the variation of the behavioral and academic parameters measured. By comparison, the coefficient of determination for deletion type alone explained 5% to 50% of the variation in the assessed parameters. Understanding the influence of gene expression on behavioral and cognitive characteristics in humans is in the early stage of research development. Additional research is needed to identify the function of these genes and their interaction with gene networks to clarify the potential role they play in central nervous system development and function.
Adaptor Proteins, Signal Transducing↗
Paraneoplastic chorea with leukoencephalopathy presenting with obsessive-compulsive and behavioral disorder.
Chorea is a rare manifestation of paraneoplastic disease and is associated with CV2/CRMP-5 antibodies. Obsessive-compulsive disorder and large-scale white matter abnormalities on MRI have not been previously reported in association with these antibodies. We report on a case of CV2 paraneoplastic syndrome with obsessive-compulsive behavior preceding the motor manifestations of chorea with associated leukoencephalopathy on MRI. The literature on paraneoplastic chorea is reviewed.
Aged↗
Compulsive checking behavior of quinpirole-sensitized rats as an animal model of Obsessive-Compulsive Disorder(OCD): form and control.
BACKGROUND: A previous report showed that the open field behavior of rats sensitized to the dopamine agonist quinpirole satisfies 5 performance criteria for compulsive checking behavior. In an effort to extend the parallel between the drug-induced phenomenon and human obsessive-compulsive disorder (OCD), the present study investigated whether the checking behavior of quinpirole rats is subject to interruption, which is an attribute characteristic of OCD compulsions. For this purpose, the rat's home-cage was placed into the open field at the beginning or the middle of a 2-hr test. RESULTS: Introduction of the home-cage reduced checking behavior, as rats stayed inside the cage. After 40 min, checking resurfaced, as quinpirole rats exited the home-cage often. An unfamiliar cage had no such effects on quinpirole rats or saline controls. CONCLUSIONS: Checking behavior induced by quinpirole is not irrepressible but can be suspended. Results strengthen the quinpirole preparation as an animal model of OCD compulsive checking.
Animals↗
Client-therapist cooperation in the treatment of compulsive handwashing behavior.
While success rates with obsessive-compulsive disorders have improved greatly, debate continues regarding the effective components of behavioral intervention. The present study uses techniques of a jointly designed behavioral contract, active modeling and response discrimination and delay to treat compulsive handwashing. The number of handwashings and time spent at each washing was reduced and the time between handwashings was increased. Obsessive-compulsive clients may respond more successfully to techniques that emphasize self-control, self-definition of appropriateness and client participation in treatment planning.
Behavior Therapy↗
Estimated prevalence of compulsive buying behavior in the United States.
OBJECTIVE: Compulsive buying (uncontrolled urges to buy, with resulting significant adverse consequences) has been estimated to affect from 1.8% to 16% of the adult U.S. population. To the authors' knowledge, no study has used a large general population sample to estimate its prevalence. METHOD: The authors conducted a random sample, national household telephone survey in the spring and summer of 2004 and interviewed 2,513 adults. The interviews addressed buying attitudes and behaviors, their consequences, and the respondents' financial and demographic data. The authors used a clinically validated screening instrument, the Compulsive Buying Scale, to classify respondents as either compulsive buyers or not. RESULTS: The rate of response was 56.3%, which compares favorably with rates in federal national health surveys. The cooperation rate was 97.6%. Respondents included a higher percentage of women and people ages 55 and older than the U.S. adult population. The estimated point prevalence of compulsive buying among respondents was 5.8% (by gender: 6.0% for women, 5.5% for men). The gender-adjusted prevalence rate was 5.8%. Compared with other respondents, compulsive buyers were younger, and a greater proportion reported incomes under 50,000 US dollars. They exhibited more maladaptive responses on most consumer behavior measures and were more than four times less likely to pay off credit card balances in full. CONCLUSIONS: A study using clinically valid interviews is needed to evaluate these results. The emotional and functional toll of compulsive buying and the frequency of comorbid psychiatric disorders suggests that studies of treatments and social interventions are warranted.
Adult↗
Compulsive attentive behavior after lesion of the ventral striatum in the cat: a behavioral and electrophysiological study.
Bilateral lesions of the nucleus accumbens in cat elicited the following changes: preservation in tests requiring focused attention, with difficulty to shift to other targets; paucity of movements, animals displaying moderate hypokinesia and loss of reaction to changes in the environment. These symptoms were accompanied by a significant increase in the amount of beta rhythms, an activity that has been shown to be concomitant with the development of focused attentive behavior. The observed behavioral and electrocortical modifications are opposite those that have been previously obtained in the same species after lesions of the ventral tegmental area.
Animals↗
Effects of donepezil on compulsive hypersexual behavior in Parkinson disease: a single case study.
Hypersexuality is a known, though not frequently publicized, behavioral disturbance in patients with Parkinson disease. Hypersexuality has been associated with dopaminergic drug therapy. We describe a patient with Parkinson disease who presented with compulsive hypersexual behavior. Lowering of dopaminergic drug doses was of minimal behavioral benefit but was not well tolerated because of worsening of motor function. A trial with donepezil led to significant amelioration of the compulsive behavior without adverse motor effects.
Amantadine↗
Compulsive sexual behavior inventory: a preliminary study of reliability and validity.
This preliminary study was designed to develop empirically a scale of compulsive sexual behavior (CSB) and to test its reliability and validity in a sample of individuals with nonparaphilic CSB (N = 15), in a sample of pedophiles (N = 35) in treatment for sexual offending, and in a sample of normal controls (N = 42). Following a factor analysis and a varimax rotation, those items with factor loadings on the rotated factors of greater than .60 were retained. Three factors were identified, which appeared to measure control, abuse, and violence. Cronbach's alphas indicated that the subscales have good reliability. The 28-item scale was then tested for validity by a linear discriminant function analysis. The scale successfully discriminated the nonparaphilic CSB sample and the pedophiles from controls. Further analysis indicated that this scale is a valid measure of CSB in that there were significant differences between the three groups on the control subscale. Pedophiles scored significantly lower than the other two groups on the abuse subscale, with the other two groups not scoring significantly differently from one another. This indicated that pedophiles were more abusive than the nonparaphilic CSB individuals or the controls. Pedophiles scored significantly lower than controls on the violence subscale. Nonparaphilic individuals with compulsive sexual behavior scored slightly lower on the violence subscale, although not significantly different. As a preliminary study, there are several limitations to this study, which should be addressed, in further studies with larger sample sizes.
Adult↗
DSM-IV field trial: obsessive-compulsive disorder.
OBJECTIVE: Three issues relevant to revising the DSM-III-R criteria for obsessive-compulsive disorder were examined in a field trial: 1) the requirement that symptoms of obsessive-compulsive disorder be viewed by the patient as excessive or unreasonable, 2) the presence of mental compulsions in addition to behavioral compulsions, and 3) ICD-10 subcategories. METHOD: The authors studied symptom patterns of obsessive-compulsive disorder as well as strength of obsessive belief among 431 patients with obsessive-compulsive disorder at seven hospital outpatient clinics. Two methods of subject selection were used: consecutive entry of everyone who contacted the clinics for evaluation of obsessive-compulsive disorder and entry of patients with obsessive-compulsive disorder who had continuing contact with the clinics since before the field trial and who were still symptomatic. Primary measures were the Yale-Brown Obsessive Compulsive Scale and face-valid questions about fixity of obsessive-compulsive beliefs. RESULTS: The large majority of patients were uncertain about whether their obsessive-compulsive symptoms were unreasonable or excessive, and most had both mental and behavioral compulsions. Results on the ICD-10 subcategories were equivocal. CONCLUSIONS: The present results converge with previous findings to indicate a broad range of insight among patients with obsessive-compulsive disorder. The DSM-III-R requirement for insight should be de-emphasized in DSM-IV, and mental rituals should be included in the definition of compulsions.
Adult↗
Ritual, habit, and perfectionism: the prevalence and development of compulsive-like behavior in normal young children.
Young children engage in a significant amount of ritualistic, repetitive, and compulsive-like activity that appears to be part of their normal behavioral repertoire. Empirically, little is known about the onset, prevalence, and developmental trajectory of these phenomena. A parent-report questionnaire, the Childhood Routines Inventory (CRI), was developed to assess compulsive-like behavior in young children, and was administered to 1,492 parents with children between the ages of 8 and 72 months. The CRI has strong overall internal consistency and a distinct two-factor structure. The frequency of compulsive-like behaviors changes with age: Two-, 3-, and 4-year-olds engaged in more compulsive behavior than children younger than 1 year of age and older than 4 years of age. Results are discussed from a developmental psychopathology framework and for their implications for future research in this area.
Child↗
Quinpirole induces compulsive checking behavior in rats: a potential animal model of obsessive-compulsive disorder (OCD).
Rats treated chronically with the dopamine agonist quinpirole (0.5 mg/kg, twice weekly x 10) met 5 criteria for performance of compulsive checking. Specifically, in a large open-field with single small objects in 4 of 25 locales, quinpirole rats revisited two places/objects excessively often and rapidly, compared with other locations in the environment or saline controls. They performed a ritual-like set of behavioral acts at these two places/objects and stopped in relatively few locales before returning to the preferred places/objects. Finally, they shifted their behavior to a new location when the object was moved there. Clomipramine (10 mg/kg, daily) postponed but did not prevent the development of the quinpirole effect. Quinpirole-induced compulsive checking may be an exaggeration of normal checking of home site in rats. Results suggest an animal model of obsessive-compulsive disorder and a role for dopamine in this disorder.
Animals↗
A case of kleptomania and compulsive sexual behavior treated with naltrexone.
Objective of this paper was to examine a possible treatment option for two disorders currently lacking agreed upon pharmacotherapeutic interventions. We report a patient fulfilling DSM-IV criteria for kleptomania with comorbid compulsive sexual behavior who failed to respond to fluoxetine, behavioral therapy, and psychotherapy, and who was therefore treated with naltrexone to reduce urges to steal and sexual urges. Treatment with high-dose naltrexone (150 mg/day) led to remission of both the patient's urges to steal and sexual urges. Discontinuation and rechallenge with the medication provides further support that improvement was due to naltrexone. Naltrexone in high doses show promise for the treatment of both kleptomania and compulsive sexual behavior.
Compulsive Behavior↗
Functional and dysfunctional perfectionists: are they different on compulsive-like behaviors?
Both perfectionism and excessive responsibility have been linked to obsessive compulsive disorder (OCD). Up to now however, a greater number of studies have focused on the role of responsibility. The present study compared compulsive-like behavior of people with different styles of perfectionism. Sixteen functional perfectionists (FP) and 16 dysfunctional perfectionists (DP) were compared on three different tasks in order to explore OC type behavior such as doubting, checking and intrusions. Results show that DP participants, compared to FP participants, scored higher on an OC behavior scale, took significantly more time to complete a precision task and precipitated their decision when confronted with ambiguity. The two groups also tended to differ in their intrusive thoughts following an unsolved problem; FP participants were more preoccupied about solving the problem than about the quality of their performance, contrary to DP subjects. Results are discussed according to theoretical models of OCD.
Adult↗
Recent advances in the behavioral treatment of obsessive-compulsives.
The last decade has witnessed remarkable progress in the treatment of obsessive-compulsives, with the introduction of response prevention and deliberate exposure to feared situations in vivo and in imagination. In a series of studies, the effects of the single components of this program were investigated. The results suggest that the optimal treatment includes a combination of all three procedures. It appears that in vivo exposure mainly affects anxiety/discomfort associated with cues for ritualizing; response prevention affects primarily compulsive behavior; and imaginal exposure assists in maintenance of treatment gains, perhaps through its impact on fears of future catastrophes associated with obsessions.
Adolescent↗
Cholinergic mechanisms in Gilles de la Tourette's syndrome.
Gilles de la Tourette syndrome (GTS), a chronic, familial, neuropsychiatric disorder of unknown etiology, is characterized clinically by the presence of motor and vocal tics that wax and wane in severity over time and by the occurrence of a variety of neurobehavioral disturbances including hyperactivity, self-mutilatory behavior, obsessive compulsive behavior, learning disabilities, and conduct disorder. Pharmacological studies suggest that the tics of GTS result from dysfunction of monoaminergic systems, more specifically from increased dopaminergic activity due to postsynaptic dopamine receptor supersensitivity. However, given that striatal dopaminergic and cholinergic systems exhibit reciprocal antagonism in other movement disorders such as Parkinsonism and chorea, it is conceivable that the cholinergic system is implicated in the disease. In the present communication it is proposed that: (a) the emergence of motor and vocal tics in GTS is associated with increased central cholinergic activity; (b) cholinergic overactivity is involved in the manifestation of other symptoms in GTS including depression, sleep disorders, motion sickness, pain, sensory tics, and the waxing and waning course of the disease; (c) abnormalities of the cholinergic system support previous evidence linking GTS with delayed cerebral maturation in a subset of young patients; and (d) drugs which stimulate cholinergic receptors may exacerbate symptoms of GTS, and as with dopamine agonists, should be avoided in patients with GTS.
Depressive Disorder↗