Childhood sexual interactions with other children are associated with lower preferred age of sexual partners including sexual interest in children in adulthood.

Associations between childhood sexual interactions with other children, and preferred and actual age of sexual partners, as well as adults' sexual interest in children, were explored in a sample of 1312 Finnish male twins. Experience of sexual interaction with other children was associated with lower minimum age of preferred and actual sexual partners in adulthood. In addition, such interactions were connected to an increased likelihood of adults' sexual interest in children under the age of 16 years.

The adult body: how age, gender, and body mass index are related to body image.

OBJECTIVE. Body image and perceived attractiveness were examined, and the impact of age, gender, and body mass index (BMI) was analyzed and discussed from an evolutionary and a sociocultural perspective. METHOD.

Subjectively measured ejaculation latency time and its association with different sexual activities while controlling for age and relationship length.

Introduction: Recently, attempts to formulate valid and suitable definitions for (different subcategories of) premature ejaculation have resulted in substantial progress in the pursuit to gain knowledge about ejaculatory function. However, the association between ejaculatory dysfunction and different types of sexual activities has yet to be thoroughly investigated, and (due to conflicting results between studies) the potential effects of age and relationship length still need to be taken into account.

Aim: The aim of this study is to investigate the associations of age, relationship length, frequency of different sexual activities, and different modes of achieving ejaculation with self-reported ejaculation latency time.

Psychiatric symptoms and same-sex sexual attraction and behavior in light of childhood gender atypical behavior and parental relationships.

This study explores the relation between the level of current symptoms of depression and anxiety and recalled childhood gender atypical behavior (GAB), and quality of relationships with parents among men and women who reported same-sex sexual attraction or engaged in same-sex sexual behavior and men and women who did not. Matched pairs, 79 men (n = 158) and 148 women (n = 296), with equal levels of GAB were created of Finnish participants with either same-sex sexual attraction or behavior and participants without. The measures used were retrospective questionnaires.

Common genetic effects of gender atypical behavior in childhood and sexual orientation in adulthood: a study of Finnish twins.

The existence of genetic effects on gender atypical behavior in childhood and sexual orientation in adulthood and the overlap between these effects were studied in a population-based sample of 3,261 Finnish twins aged 33-43 years. The participants completed items on recalled childhood behavior and on same-sex sexual interest and behavior, which were combined into a childhood gender atypical behavior and a sexual orientation variable, respectively. The phenotypic association between the two variables was stronger for men than for women.

Female sexual dysfunction, sexual distress, and compatibility with partner.

Introduction: Few studies have looked at prevalence estimates for female sexual dysfunctions in combination with personal distress, although existing diagnostic criteria for sexual disorders include both aspects. Further, the variation in female sexual function has been shown to be largely explained by unique nongenetic factors. Such factors may include partner sexual function and perception of sexual compatibility with a partner, factors which may also be associated with sexual distress.

Factor structure of the Alcohol Use Disorders Identification Test (AUDIT) for men and women in different age groups.

Objective: Our main aim was to investigate the factor structure of the Alcohol Use Disorders Identification Test (AUDIT) in a Finnish population sample.

Method: The AUDIT was completed by 3,125 men (mean age = 26.2 years) and 6,006 women (mean age = 26.

Indicators of premature ejaculation and their associations with sexual distress in a population-based sample of young twins and their siblings.

Introduction: Recently, in anticipation of the Diagnostic and Statistical Manual of Mental Disorders V, much consideration has been given to the diagnostic criteria for premature ejaculation (PE). The scientific community is yet to agree not only on the etiology of PE, but also on the most suitable diagnosis and forms of treatment. It has been suggested that the diagnostic criteria of PE should be strictly empirical and rely on intravaginal latency time alone, whereas others stress the need to also include psychological and personal factors.

Do the same genetic and environmental effects underlie the covariation of alcohol dependence, smoking, and aggressive behaviour?

We investigated genetic and environmental effects on alcohol dependence, smoking, and aggressive behaviour, as well as sex differences in these effects and whether these effects were the same for the three phenotypes. There were 3141 male (mean age 26.2 [S.

Discrepancies between sexual desire and sexual activity: gender differences and associations with relationship satisfaction.

The nature of sexual satisfaction and its relationship with relationship satisfaction was examined in a population-based Finnish sample of men and women between 33 and 43 years. Both men and women wished to experience kissing and petting, sexual fantasies, oral sex, and vaginal intercourse more often. Sexual satisfaction, defined as no discrepancy between desired frequency and actual frequency of sexual behaviors, was associated with relationship satisfaction.

Evaluation of the female sexual function index in a population based sample from Finland.

The factor structure and reliability of the Female Sexual Function Index (FSFI) was evaluated in a Finnish population based sample of 2,081 women, age 33-43 years. In addition, associations between female sexual function and age, psychological distress, alcohol use, hormone based contraceptives, child sexual abuse (CSA), and adult sexual abuse were examined. The results supported a six factor solution for the FSFI with high internal consistencies, in line with earlier research in clinical populations.

Genetic and environmental effects on sexual excitation and sexual inhibition in men.

The Sexual Inhibition and Sexual Excitation Scales (SIS/SES) measure the propensity for sexual inhibition and excitation in men. According to the theoretical model underlying the SIS/SES, sexual response and associated behavior depend on dual control mechanisms in the brain involving the balance of excitatory and inhibitory systems which impinge on sexual response. Previous research with the SIS/SES has indicated one higher-order excitatory factor and two higher-order inhibitory factors affecting sexual response.

Premature and delayed ejaculation: genetic and environmental effects in a population-based sample of Finnish twins.

Introduction: A number of different theoretical approaches to understanding the etiology of ejaculatory dysfunction have been proposed, but no behavior genetic study has yet, to our knowledge, been conducted to explore the genetic and environmental influences on ejaculatory dysfunction.

Aim: The aim of the present study was to explore the genetic and environmental effects on premature (PE) and delayed (DE) ejaculation in a population-based sample.

Methods: The genetic and environmental influences on PE and DE were investigated in a population-based sample of 1,196 Finnish male twins, age 33-43 years, with 91 identical and 110 complete twin pairs.

Genetic effects on male sexual coercion.

The genetic and environmental influences on sexual coercion, and to what extent its associations with alcohol use and psychopathy depend on shared genetic and environmental effects, were explored in a Finnish population-based sample of 938 men, aged 33-43 years, using the classical twin study design. All three phenotypes were associated positively and affected by genes (sexual coercion 28%, alcohol use 60%, psychopathy 54%), with 46% of the correlation between sexual coercion and psychopathy, 89% of the correlation between alcohol use and psychopathy and 100% of the correlation between sexual coercion and alcohol use being explained by shared genetic effects. Further, the results showed that a proportion of the variance in sexual coercion was derived from a highly genetic source that was common with alcohol use and psychopathy.