Stuart Brody

Stuart Brody

BA MA PhD DSc CPsychol FBPsS

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223
Publications
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5,949
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Publications

Publications (223)
Article
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It is commonly asserted that the sub-Saharan African HIV/AIDS epidemic is predominantly due to heterosexual transmission. However, recent re-examination of the available evidence strongly suggests that unsafe health care is the more likely vector. The present report adds to the evidence for health-care transmission by showing that Kenyan women who...
Article
Penile-vaginal intercourse (PVI) but not other sexual behavior is associated with better psychological and physiological function. I examined the relationship of sexual behavior patterns to blood pressure (BP) and its reactivity to stress (public speaking and verbal arithmetic). For a fortnight, 24 women and 22 men used daily diaries to record PVI,...
Article
Full-text available
We previously reported on the causes of death in a 30-year open cohort of 1,969 prostitute women. Excess mortality was mostly accounted for by homicide, suicide, drug and alcohol toxicity, and AIDS, with AIDS deaths occurring in prostitutes identified as injecting drug users. Presently, we examine observed mortality trends in light of the literatur...
Article
Physiological responses to stress are considered disruptive to health. High-dose ascorbic acid has reduced indices of stress in laboratory animals. We conducted a randomized double-blind, placebo-controlled 14-day trial of sustained-release ascorbic acid (60 healthy young adults; 3 x1000 mg/day Cetebe) and placebo (60 healthy young adults) for redu...
Article
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Although many studies examine purported risks associated with sexual activities, few examine potential physical and mental health benefits, and even fewer incorporate the scientifically essential differentiation of specific sexual behaviors. This review provides an overview of studies examining potential health benefits of various sexual activities...
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Cushman argues that “rationalization is rational.” We show that there is reasonable empirical clinical and forensic psychological evidence to support viewing rationalization as a quite suboptimal defense mechanism. Rationalization has been found to be associated not only with poorer emotional development, but also with a broad range of antisocial b...
Chapter
The issues to be considered and approaches to be used in the evaluation of female orgasmic disorder are presented in the context of research evidence and best clinical practice. The sections in this chapter include epidemiology, etiology, pathophysiology, DSM-5 and ICD-10 diagnostic criteria, and approach to diagnosis (including diagnostic scales a...
Article
A recent study by Therrien and Brotto (2016) examined the associations of orgasm during intercourse, concordance of laboratory genital and subjective arousal, and demographic variables in a group of sexually dysfunctional women. The authors claimed that their results cast doubt on the large body of multi-method multi-national research demonstrating...
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Introduction and hypothesisThe terminology for anorectal dysfunction in women has long been in need of a specific clinically-based Consensus Report. Methods This Report combines the input of members of the Standardization and Terminology Committees of two International Organizations, the International Urogynecological Association (IUGA) and the Int...
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Introduction: The terminology for anorectal dysfunction in women has long been in need of a specific clinically-based Consensus Report. Methods: This Report combines the input of members of the Standardization and Terminology Committees of two International Organizations, the International Urogynecological Association (IUGA) and the Internationa...
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IntroductionResearch indicated that (i) vaginal orgasm consistency is associated with indices of psychological, intimate relationship, and physiological functioning, and (ii) masturbation is adversely associated with some such measures.AimThe aim of this study was to examine the association of various dyadic and masturbation behavior frequencies an...
Article
IntroductionBoth erectile dysfunction (ED) and premature ejaculation (PE) impair the quality of sexual intercourse for both men and their female partners.AimsThis study aims to examine with a large representative sample the interrelationships of measures of ED, PE, typical intravaginal ejaculatory latency time (IELT), men's perceived relationship q...
Article
Objective: Given that adiposity is related to poorer female sexual function, among many other health problems, the present study aimed at testing the hypothesis that larger waist circumference, an index of subcutaneous and abdominal fat mass, is associated with lack of specifically vaginal orgasm. Study design One hundred and twenty Portuguese wom...
Article
Previous research found that frequency of penile-vaginal intercourse (PVI) is associated with better health and satisfaction (sexual, relationship, life, mental health), with some opposite effects for masturbation (even when controlling for partnered sexual activity frequency). Previous research also found that depressed women have a greater desire...
Article
Immature psychological defense mechanisms are psychological processes that play an important role in suppressing emotional awareness and contribute to psychopathology. In addition, unhealthy food, television viewing, and alcohol consumption can be among the means to escape self-awareness. In contrast, engaging in, and responding fully to specifical...
Article
A recent critique of the use of journal impact factors (IF) by Vanclay noted imprecision and misuses of IF. However, the substantial alternatives he suggested offer no clear improvement over IF as a single measure of scholarly impact of a journal, leaving IF as not yet replaceable.
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Introduction: Research indicated that: (i) vaginal orgasm (induced by penile-vaginal intercourse [PVI] without concurrent clitoral masturbation) consistency (vaginal orgasm consistency [VOC]; percentage of PVI occasions resulting in vaginal orgasm) is associated with mental attention to vaginal sensations during PVI, preference for a longer penis,...
Article
Sexual intercourse, orgasm, and sexual satisfaction are associated with well-being and improved quality of life. The pituitary hormone prolactin (PRL) may have an important role in regulating (and thus indexing) sexual satiety and satisfaction. Physiological indices to quantify the quality and resulting satisfaction from female orgasm would be valu...
Article
Previous research has indicated that men generally rate slimmer women as more sexually attractive, consistent with the increased morbidity risks associated with even mild abdominal adiposity. To assess the association of women's waist size with a more tangible measure of perceived sexual attractiveness (as well as reward value for both sexes), we e...
Article
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Introduction. Research indicates that (i) women's orgasm during penile–vaginal intercourse (PVI) is influenced by fitness-related male partner characteristics, (ii) penis size is important for many women, and (iii) preference for a longer penis is associated with greater vaginal orgasm consistency (triggered by PVI without concurrent clitoral mastu...
Article
Prior research indicated that women's greater frequency of sexual activities is associated with perceiving the faces of unknown men as less attractive. In the present study, men aged 18–30 (n = 126) reported the frequency of a variety of sexual behaviors and rated the facial attractiveness and friendliness of 24 women. Unlike the results obtained w...
Article
The authors reply to a quartet of recent articles in this journal. We detail certain misrepresentations and the dismissal of existing research in those articles (including attempts at denial of the repeatedly documented association of lack of vaginal orgasm with greater use of immature psychological defense mechanisms and other indices of poorer he...
Article
Although some studies of clinical populations suggest an association of adult toy animal ownership with personality disorder, studies of nonclinical populations have been lacking. In a nonclinical young adult sample (N = 148), we found no association of toy animal ownership with use of immature, mature, or neurotic defense mechanisms; avoidant or a...
Article
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There is general agreement that it is possible to have an orgasm thru the direct simulation of the external clitoris. In contrast, the possibility of achieving climax during penetration has been controversial. Six scientists with different experimental evidence debate the existence of the vaginally activated orgasm (VAO). To give reader of The Jour...
Article
Resting heart rate variability (HRV), a marker of parasympathetic activity, is a predictor of health and longevity. Better erectile function is associated with greater resting HRV (assessed by high frequency power [HF]), and in both sexes, penile-vaginal intercourse (PVI) is the only sexual behavior consistently associated with indices of better ph...
Article
It has been unclear whether adolescent deliberate self-harm (DSH) is more associated with substance use or with characterological impairments. Multivariate determination of (N = 114 Scottish adolescents) ever engaging in DSH (Youth Risk Behavior Survey) from alcohol use, other substance use, and immature defense mechanism use (Defense Style Questio...
Article
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The projection of vagina, uterine cervix, and nipple to the sensory cortex in humans has not been reported. The aim of this study was to map the sensory cortical fields of the clitoris, vagina, cervix, and nipple, toward an elucidation of the neural systems underlying sexual response. Using functional magnetic resonance imaging (fMRI), we mapped se...
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In reporting an increase in rectal cancer incidence among young (aged <40 years) Americans during the last quarter century, Meyer and colleagues 1 call for further investigation of risk factors, especially of interactions among environmental factors and changing population genetics resulting from the shifting demographics in the United States. In o...
Article
Representative samples of the Czech population were surveyed with regard to sexual behavior in 1993, 1998, 2003, and 2008 (N = 7,720). Lifetime prevalence of Heterosexual Anal Intercourse increased from 1993 to 2008 (16.6% to 19.7% among women, 15.7% to 25.3% among men). Anal intercourse was associated with lifetime number of sex partners, current...
Article
Recent studies have uncovered multiple markers of vaginal orgasm history (unblocked pelvic movement during walking, less use of immature psychological defense mechanisms, greater urethrovaginal space). Other markers (perhaps of prenatal origin) even without obvious mechanistic roles in vaginal orgasm might exist, and a clinical observation led to t...
Article
Introduction: Disturbances in intimate relationships are among the risk factors for female sexual dysfunction. Insecure styles of anxious attachment (preoccupations about abandonment) and avoidant attachment (avoidance of closeness in relationships) are robustly associated with sexual problems, relationship difficulties, and several indices of poo...
Article
Previous multivariate research in Europe found that sexual satisfaction was associated directly with frequency of penile-vaginal intercourse (PVI) but inversely with masturbation and some aspects of non-PVI partnered sex. To examine the associations of sexual satisfaction in a sample from the People's Republic of China, including not only frequenci...
Article
Erectile dysfunction has adverse implications for both men and their female partners. The International Index of Erectile Function (IIEF) is a widely used self-report measure. It was unclear whether scores generated by women on behalf of men are comparable to self-reports, and how IIEF scores are associated with satisfaction for both sexes in both...
Article
Previous multivariate research found that satisfaction was associated positively with frequency of specifically penile-vaginal intercourse (PVI; as opposed to other sexual activities) as well as with vaginal orgasm. The contribution to satisfaction of simultaneous orgasm produced by PVI merited direct examination in a large representative sample. T...
Article
Previous research has suggested that diminished tactile sensitivity might be associated with reduced sexual activity and function. Research has also demonstrated significant physiological and psychological differences between sexual behaviors, including immature psychological defense mechanisms (associated with various psychopathologies) impairing...
Article
A growing literature links aspects of sexual and cardiovascular function. Recent research revealed that pulse pressure (systolic minus diastolic) was associated with poorer erectile function (and hypogonadism) in male patients with erectile dysfunction. It is unclear to what degree pulse pressure (and body mass index) would be associated with aspec...
Article
This letter to the editor gives opposing views to a study finding risk of mental disorders and suicidal tendencies associated with lack of condom use in Americans. It argues that a wide range of studies have found that greater frequency of penile-vaginal intercourse (PVI) is associated with measures of better health and that condoms might detract f...
Article
Research shows that (1) greater use of immature psychological defence mechanisms (associated with psychopathology) is associated with lesser orgasmic consistency from penile-vaginal intercourse (PVI), but greater frequency of other sexual behaviours and greater condom use for PVI, and (2) unlike the vectors of receptive anal intercourse and punctur...
Article
To evaluate the internal consistency reliability and discriminant validity of a Chinese language short form (14-item) of the Marlowe-Crowne Social Desirability Scale, data from 197 Chinese medical students were analyzed. Half (48 men, M age = 23.0 yr.; 51 women, M age = 22.0 yr.) were randomly assigned to receive standard instructions, and half (46...
Article
Introduction: Disturbances of emotional and physical awareness can impair female sexual function. Previous research revealed that immature psychological defense mechanisms (impairing emotional awareness) are associated specifically with impaired vaginal orgasm (orgasm triggered solely by penile-vaginal stimulation). Alcohol consumed before sex (AC...
Article
Evidence was recently provided for vaginal orgasm, orgasm triggered purely by penile-vaginal intercourse (PVI), being associated with better psychological functioning. Common sex education and sexual medicine approaches might undermine vaginal orgasm benefits. To examine the extent to which women's vaginal orgasm consistency is associated with (i)...
Article
Sexual medicine would benefit from large representative surveys examining the prevalence of genital female sexual arousal disorder (FSAD) symptoms (with and without the increasingly controversial distress criterion), as well as novel FSAD correlates and potential "protective" factors. To examine the extent to which genital FSAD symptoms, with and w...
Article
Some sex therapists and educators assume that many sexual behaviors provide comparable sexual satisfaction. Evidence is required to determine whether sexual behaviors differ in their associations with both sexual satisfaction and satisfaction with other aspects of life. To test the hypothesis that satisfaction with sex life, life in general, sexual...
Article
It has been asserted that women's likelihood or consistency of partnered orgasm (her orgasm as a result of sexual activities with a partner) is determined by duration of foreplay, but not by duration of penile-vaginal intercourse. The objective was to examine the extent to which women's likelihood or consistency of partnered orgasm is associated wi...
Article
This study examined the antinociceptive effects of smoking in nine habitual smokers under deprived (12 h) and minimally-deprived (< 30min) conditions. Pain threshold for thermal stimuli, heart rate, blood pressure and ratings of mood, arousal, dominance and well-being were assessed before and after smoking a cigarette. Overall, smoking affected all...
Article
Hypoglycaemia may lead to severe undernutrition of the brain and represents the limiting factor of insulin treatment. Although hypoglycaemia provokes a strong sympathetic stress response as well as neuroglycopenic and adrenergic symptoms, some type 1 diabetes patients become unaware to the symptoms of hypoglycaemia and subsequently fail to administ...
Article
Freud opined that condom use during penile-vaginal intercourse (PVI), like sexual activities other than PVI, led to a detrimental effect on orgasm that fueled the neuroses. Although this hypothesis had not been empirically tested, Freud's hypothesis that inability to have a (PVI) vaginal orgasm is a sign of psychological immaturity has recently rec...
Article
Research has demonstrated the association between vaginal orgasm and better mental health. Some theories of psychotherapy assert a link between muscle blocks and disturbances of both character and sexual function. In Functional-Sexological therapy, one focus of treatment is amelioration of voluntary movement. The present study examines the associat...
Article
Obtaining large-scale sexual network data is difficult [1] and doing so in a poor country is especially difficult. We congratulate Helleringer and Kohler [2] on their pioneering study of a sexual network on Likoma Island Malawi. Their approach represents an important step toward appropriate research designs for elucidating HIV transmission dynamics...
Article
Freud implied a link between inability to have a vaginal orgasm and psychosexual immaturity. Since Kinsey, many sexologists have asserted that no such link exists. However, empirical testing of the issue has been lacking. The objective was to determine the relationship between different sexual behavior triggers of female orgasm and use of immature...
Article
In a sample of 97 healthy Dutch female university students, women with greater finger tactile sensitivity (von Frey-type filaments) engaged more in partnered (but not solitary masturbation) sexual behavior. Orgasmic responses in the past 30 days were not correlated with finger sensitivity. Results are discussed in terms of differences between diffe...
Article
Full-text available
In the USA, annual rates of new human immunodeficiency virus (HIV)/AIDS diagnoses are seven and 21 times higher in black men and women, respectively, than in whites. Epidemiological inquiry on this disparity has chiefly focused on contextual factors; such emphasis has eclipsed study of direct HIV vectors. The US Centers for Disease Control and Prev...
Article
A study was conducted to assess whether individual differences in sexual activity during the past 30 days, in particular penile–vaginal intercourse (PVI; which is associated with measures of relationship quality), are related to the perception of the facial attractiveness of unknown men. Forty-five women reported the frequency of a variety of sexua...
Article
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Article
A growing empirical literature demonstrates that the only sexual behavior consistently associated with indices of better physiological and psychological function is the one sexual behavior relevant to potential gene propagation. In the present study, 30 Portuguese women reported on their frequency of different sexual behaviors and corresponding org...
Article
In a large representative sample of the Swedish female adult population (N = 1256), having an orgasm from purely penile stimulation of the vagina (as opposed to orgasms from clitoral stimulation) was associated with greater satisfaction (with sex life, mental health, relationships with both partners and friends, and life in general), more frequent...
Article
Remarkable proportions of self-reported virgins and adolescents in eastern and southern Africa are infected with HIV, yet non-sexual routes of transmission have not been systematically investigated in such persons. Many observers in this region have recognized the potential for HIV transmission through unhygienic circumcision procedures. We assesse...
Article
Several mathematical models simulate a HIV/AIDS epidemic by using the assumption that heterosexual transmission is the major or sole transmission mode. The validity of these models has been unclear. To understand the validity of these models, empirical estimates for relevant model parameters are needed that can be compared with parameters used in m...

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