The effects of sleep pressure and circadian phase on neurobehavioral function can be sensitively measured with the psychomotor vigilance task (PVT). We compared PVT performance in 16 young (8 men and 8 women, 20-31 years) and 16 elderly healthy subjects (8 men and 8 women, 57-74 years) during a 40-h sleep deprivation (SD, high sleep pressure) and a 40-h multiple nap protocol (NAP, low sleep pre...

In the current study (N = 199), we utilized a speed-meeting methodology to investigate misperceptions of sexual interest. This method allowed us to evaluate the magnitude of men’s overperception of women’s sexual interest, to examine whether and how women misperceive men’s sexual interest, and to assess individual differences in susceptibility to sexual misperception. We found strong support fo...

The HIV/AIDS epidemic is disproportionately impacting young African Americans. Efforts to understand and address risk factors for unprotected sex in this population are critical in improving prevention efforts. Situational risk factors, such as relationship type and substance use before sex, are in need of further study. This study explored how established cognitive predictors of risky sexual b...

Understanding factors that affect the severity of a juvenile-stranger sexual assault has implications for crime prevention, and potentially, the assessment and treatment of juvenile sex offenders. This study investigated how victim characteristics and the number of suspects affected the use of physical violence and weapons and the occurrence of penetration in 495 allegations of sexual assault c...

BACKGROUND Recent research has highlighted the need for additional studies on the nutrition input required to stabilize growth. OBJECTIVE Our objective was to examine the association between dietary diversity and conditional growth in children aged 0-89 mo. METHODS We analyzed cohort data from 529 mothers and children living in a remote and food-insecure region in the mountains of Nepal. Ch...

Background: Some studies demonstrate that depression, stress, low self esteem and sexual dissatisfaction may be psychological outcomes of infertility. Depression and sexual satisfaction may play a significant role in the life of infertile couples, their infertility treatment follow ups and their hopefulness for the future, this study was done to determine and compare rates of depression and sex...

Objective: To compare variables related to sexual functioning, namely: sexual desire, arousal, orgasm, pain, sexual satisfaction and sexual function in women during the pregnancy and 3 months after delivery. Methods: This is an exploratory and descriptive, quantitative study. A nonprobability, convenience sample of 62 women in the first stage, and of 52 women in the second stage, was used. The ...

INTRODUCTION The literature shows a discrepancy in the association between child sexual abuse (CSA) and adult sexual function. One of the proposed explanations for this discrepancy is the different ways in which CSA is assessed. While some studies explicitly ask potential participants whether they are sexual abuse survivors, others ask whether participants experienced specific unwanted sexual b...

Seven hundred and two (346 non-Asian, 356 Asian) undergraduate volunteers were assessed in a confidential laboratory setting on levels of interpersonal sexual behavior (e.g., petting, intercourse), intrapersonal sexual behavior (e.g., fantasy, masturbation), and sociosexual restrictiveness (e.g., lifetime number of partners, number of "one-night stands"). The purpose was to examine possible dif...