The present study was conducted to better describe age trends in cognition among older adults in the longitudinal Health and Retirement Study (HRS) from 1992 to 2004 (N = 17,000). The authors used contemporary latent variable models to organize this information in terms of both cross-sectional and longitudinal inferences about age and cognition. Common factor analysis results yielded evidence for at least 2 common factors, labeled Episodic Memory and Mental Status, largely separable from vocabulary. Latent path models with these common factors were based on demographic characteristics. Multilevel models of factorial invariance over age indicated that at least 2 common factors were needed. Latent curve models of episodic memory were based on age at testing and showed substantial age differences and age changes, including impacts due to retesting as well as several time-invariant and time-varying predictors.

The results of this review suggest that a significant number of eating disorder patients display a chronic course, which is poorly understood. Treatments for these individuals are not based on evidence-based findings.

This study examines the relationship between perpetrator characteristics, situational characteristics, and type of sexual coercion tactics used to obtain sexual contact (including sexual intercourse) with an unwilling partner. Men who used manipulation or force were compared to each other and to men who engaged in only consensual sex. Participants were college men drawn from the first wave of a 5-year longitudinal study. Stepwise discriminant function analyses, univariate analyses of variance (ANOVA), and chi(2) analyses tested group differences. As predicted, men who used force reported more childhood sexual abuse, witnessed more domestic violence, were more accepting of male violence, and were less likely to endorse love as a motive for sex than men in both the manipulation and consent groups. Men in the force group were also more likely to have had a casual relationship with the woman, and to be drinking and also intoxicated during the coercive incident than men in the manipulation group. Hypothesized differences between men who used force and manipulation regarding parental physical punishment, traditional gender role attitudes, delinquency, hedonistic and dominance motives for sex, prior sexual contact, and the length of the relationship were not supported. The results suggest that types of tactic used in sexual assaults can be distinguished on the basis of person and situational variables and that knowledge of these differences can facilitate future research, as well as rape deterrent and intervention programs.

This study examined dyadic interrelations between episodic memory and depressive symptom trajectories of change in old and advanced old age. We applied dynamic models to 10-year incomplete longitudinal data of initially 1,599 married couples from the Study of Asset and Health Dynamics Among the Oldest Old (AHEAD; Mage = 75 years at T1). We found domain-specific lead-lag associations (time lags of two years) among and between spouses. For memory, better performance among husbands protected against subsequent memory decline among wives with no evidence of a directed effect in the other direction. For depressive symptoms, wives’ scores predicted subsequent depression increase and memory decline among husbands. Possible individual covariates (age, education, functional limitations) and spousal covariates (length of marriage, number of children, and whether or not the couple remained intact over the study period) did not account for differential lead–lag associations. Our findings of antecedent–consequent relations between wives and husbands are consistent with lifespan notions that individual development both influences and is influenced by contextual factors such as close social relationships.

This study examined heterosexism that is not specifically targeted at LGB individuals, but may be experienced as antigay harassment, and may contribute to the stigma and stress they experience. LGB participants (N = 175, primarily Euro-American college students), read scenarios of heterosexuals saying or assuming things potentially offensive to gay men or lesbian women. For each scenario, they indicated extent to which they would be offended and less open about their sexuality, and their perceptions of the behaviors as evidence of antigay prejudice. Not only did respondents find the scenarios to be offensive and indicative of prejudice, but perceived offensiveness was associated with a decreased likelihood of coming out. In comparison to gay men, lesbian women and bisexuals found the scenarios more offensive and more indicative of prejudice. Limitations of the current study and directions for future research are outlined.

The clinical diagnosis and symptoms of major depressive disorder (MDD) have been closely associated with impairments in reward processing. In particular, various studies have shown blunted neural and behavioral responses to the experience of reward in depression. However, little is known about whether depression affects individuals’ valuation of potential rewards during decision-making, independent from reward experience. To address this question, we used a gambling task and a model-based analytic approach to measure two types of individual sensitivity to reward values in participants with MDD: ‘risk preference,’ indicating how objective values are subjectively perceived, and ‘inverse temperature,’ determining the degree to which subjective value differences between options influence participants’ choices. On both of these measures of value sensitivity, participants with MDD were comparable to non-psychiatric controls. In addition, both risk preference and inverse temperature were stable over four laboratory visits and comparable between the groups at each visit. Neither valuation measure varied with severity of clinical symptoms in MDD. These data suggest intact and stable value processing in MDD during risky decision-making.

Metallic nano-optoelectrode arrays can simultaneously serve as nanoelectrodes to increase the electrochemical surface-to-volume ratio for high-performance electrical recording and optical nanoantennas to achieve nanoscale light concentrations for ultrasensitive optical sensing. However, it remains a challenge to integrate nano-optoelectrodes with a miniaturized multifunctional probing system for combined electrical recording and optical biosensing in vivo. Here, we report that flexible nano-optoelectrode-integrated multifunctional fiber probes can have hybrid optical–electrical sensing multimodalities, including optical refractive index sensing, surface-enhanced Raman spectroscopy, and electrophysiological recording. By physical vapor deposition of thin metal films through free-standing masks of nanohole arrays, we exploit a scalable nanofabrication process to create nano-optoelectrode arrays on the tips of flexible multifunctional fiber probes. We envision that the development of flexible nano-optoelectrode-integrated multifunctional fiber probes can open significant opportunities by allowing for multimodal monitoring of brain activities with combined capabilities for simultaneous electrical neural recording and optical biochemical sensing at the single-cell level.

No abstract