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An 1897 clinical case of transsexualism before the diagnostic category was established is described. It was reported by a Baltimore physician trying to introduce concepts of homosexuality to the psychiatric community.
This study explores the relationship between male sexual behavior and personality factors, as measured by the MMPI and Sensation Seeking Scale. Subjects were 20 male volunteers, ages 19-58, with a history of long-term sexual relationships. Subjects kept a daily record of sexual behaviors. Frequency of these behaviors was correlated with MMPI and Sensation Seeking (SSS) subscales. Results indicate that both introversion and depression show significant correlations with autoerotic stimulation and arousal, but not with heterosexual activity. There is no significant correlation demonstrated between hypomania and sexual activity. The Boredom Susceptibility subscale of the SSS correlated significantly with the number of sexual partners.
Sexual arousal by clitoral self-stimulation was used by healthy, young adult women volunteers (n = 28) to induce orgasm in the laboratory. The duration of the orgasm was obtained using the subject's verbal indication of its start and finish. The estimated duration and the subjective experience of the orgasm self-graded on a 5-point scale were also obtained in a number of subjects. Vaginal blood flow was assessed by the power consumption needed to keep a heated oxygen electrode, held on the vaginal wall by suction, at a constant temperature. The mean measured orgasm duration was 19.9 seconds (SD, +/- 12, n = 26). For 14 subjects, their estimate of the duration of their orgasms (12.2 +/- 9.8 seconds, mean +/- SD) was greatly underestimated compared with the measured duration (26 +/- 14.6 seconds). This result indicates that data obtained on the duration of orgasm from questionnaires or interviews have suspect validity. The measured duration of the orgasms was not significantly correlated with the subjective grading. The increase in vaginal blood flow at orgasm was not significantly correlated with the subjective gradings of orgasm (n = 18), the orgasm latency (time taken to induce orgasm, n = 18), or the measured duration of orgasm (n = 14).
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There is considerable interest in the relationship between testosterone and sexual behavior in men, but the few available data bearing on this issue are inconclusive. This study is an attempt to clarify the relationships among various components of sexuality and serum testosterone concentration through examination of these variables in a large homogenous group of men. Serum testosterone concentration was determined in two blood samples taken 1 week apart from 101 young adult men. Subjects reported their frequencies of various sexual activities and level of sexual interest. Testosterone concentrations in the two blood samples were highly correlated, indicating considerable intraindividual consistency. There was considerable variance among subjects in both mean testosterone and reported sexual activity. Testosterone concentration did not correlate with the sexual activity and interest variables. These results provide evidence that differences among men in circulating testosterone concentration within the normal range do not account for differences in sexual activity and interest. It is also unlikely that variations in sexual activity account for differences in testosterone concentration.
The results of a 5-year follow-up survey on the sexual behavior of unmarried Colombian University students are reported. On the whole, these findings corroborate the earlier data. Coital incidences of 93.9% among males and 38.3% among females, as well as the important role prostitution still plays in the sexual lives of males, show that the double standard is much in force. However, there are indicators of its erosion, such as male students' decreasing reliance on prostitutes as sources of sexual outlet and the appreciable incidence of female premarital coitus, which could reach 50% among those students that eventually marry.
A retrospective review of data from a 619-member female sample presenting for treatment of sexual dysfunction was conducted to determine if foreplay and intromission duration variables were related to sexual dysfunction. Patients were assigned to coitally anorgasmic and noncoitally anorgasmic, coitally anorgasmic and noncoitally orgasmic, or coitally and noncoitally orgasmic categories on the basis of interview data collected by a nurse-physician team. Duration measure differences are not found between diagnostic categories. However, significant differences are reported for the duration measures between status of relationship groupings: married, single, divorced, or cohabitating (p less than 0.05). Data from the sexually dysfunctional sample are compared with data from the surveys of Kinsey, Fisher, and Hunt. The importance of extended foreplay and intromission in enhancing female coital orgasmic response is not supported.
Orgasm has been reported to occur in response to imagery in the absence of any physical stimulation. This study was undertaken to ascertain whether the subjective report of imagery-induced orgasm is accompanied by physiological and perceptual events that are characteristic of genitally stimulated orgasm. Subjects were women who claimed that they could experience orgasm from imagery alone. Orgasm from self-induced imagery or genital self-stimulation generated significant increases in systolic blood pressure, heart rate, pupil diameter, pain detection threshold, and pain tolerance threshold over resting control conditions. These findings provide evidence that orgasm from self-induced imagery and genital self-stimulation can each produce significant and substantial net sympathetic activation and concomitant significant increases in pain thresholds. The increases in the self-induced imagery orgasm condition were comparable in magnitude to those in the genital self-stimulation-produced orgasm condition. On this basis we state that physical genital stimulation is evidently not necessary to produce a state that is reported to be an orgasm and that a reassessment of the nature of orgasm is warranted.
Asphyxiophilia, the desire for a state of oxygen deficiency in order to enhance sexual excitement and orgasm, is a very precarious form of sexual gratification. Asphyxiophilia has been difficult to document since it is mostly practiced in secrecy and solitude and is usually not discovered until the practitioner has been found dead. Most of the information about asphyxiophilia is found in police reports and medicolegal investigations by doctors of forensic medicine. Our study is based on information from 18 doctors of forensic medicine in Denmark, Norway, and Sweden. Six sources indicate similar frequencies (0.5-1 cases per million inhabitants per year) of observed deaths in Scandinavia. Although the frequency of observed deaths is different from the true mortality rate, this study gives a good illustration of the estimated prevalence. This accuracy is enhanced by the length of the observation periods (10-40 years).
Profile analysis can be used in sex research as a statistical procedure to assess the degree of similarity between various samples on different parameters of sexual behavior. Data are presented to analyze intergenerational changes comparing three independent samples including a time interval of approximately four decades. Profile analysis can differentiate the intergenerational trend. Results show (i) a clear trend of male-female profile-convergence over time; (ii) intergenerational changes in males are few with male sexual behavior seemingly little influenced by social changes; (iii) females show large intergenerational differences. These asymmetric trends demonstrate that the sexual changes within the last four decades are a one-sided process of females liberating from the "behavioral double standard."
The opiate antagonist naloxone was tested for its effectiveness in inducing sexual behavior in sexually inactive male rhesus macaques (Macaca mulatta). Naloxone was administered to males directly into the carotid artery via a T-tube implant. Naloxone-treated males and sexually receptive females were pair tested for sexual behavior. Despite the positive behavioral cues of the females, the males failed to initiate heterosexual interactions at any level of naloxone therapy. The implications of this finding for the role of the endogenous opiate system in primate reproduction are discussed in relation to the homeostatic nature of the system.
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Air embolism has been described in pregnant women and is a classic cause of death during attempted abortion by syringing. Death was caused by the introduction of an amount of air sufficient to cause a substantial air lock in the heart, pulmonary trunk or arteries. If the surface of the placenta has been stripped by the syringe, venous spaces are opened and air can pass into the circulation. Orogenital sex with vaginal insufflation can also cause air embolism during pregnancy. We report a case of air embolism in a 40-year-old non-pregnant woman subsequent to vaginal insertion of a foreign body (carrot) for an autoerotic purpose. The mechanism is roughly similar to syringing, the foreign body acting like a piston to displace a sufficient amount of air. In the present case, the endometrium stripping was probably due to the presence of an intrauterine device. As such risks may often be encountered and as, to our knowledge, no similar case has previously been reported, we may speculate if such air embolisms are underdiagnosed or dissimulated by the partners when questioned by the medical rescue teams.
A 36-year-old man was hospitalized for self-insertion of a metallic body into the urethra. The self-inserted foreign body (SFB) was removed by endoscopic means; psychiatric evaluation of the patient showed a disturbed schizoid personality. After a review of the current literature, including clinical features, diagnostic manoeuvres and methods of treatment of SFB, the authors suggest that a psychiatric evaluation is always recommended in order to discover mental underlying disorders, thus reducing the risk of recurrence.
Headaches associated with exercise, cough, and sexual activity may present a diagnostic challenge in the emergency room or primary care provider's office. The majority of these patients have no underlying intracranial pathologic condition and have a good prognosis. However, new onset of these types of headache, with or without accompanying neurologic deficit, is an indication to exclude life-threatening conditions such as subarachnoid bleeding with neuroimaging and CSF examination. Since the pathophysiology is poorly understood, treatment choices are limited. Further research is needed to elucidate the pathophysiologic mechanisms of these uncommon headaches and to assess the cost-effectiveness of various diagnostic and follow-up strategies.
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