The influence of adaptation and inhibition on the effects of onset asynchrony on auditory grouping

Onset asynchrony is an important cue for auditory scene analysis. For example, a harmonic of a vowel that begins before the other components contributes less to the perceived phonetic quality. This effect was thought primarily to involve high-level grouping processes, because the contribution can be partly restored by accompanying the leading portion of the harmonic (precursor) with a synchronous captor tone an octave higher, and hence too remote to influence adaptation of the auditory-nerve response to that harmonic. However, recent work suggests that this restoration effect arises instead from inhibitory interactions relatively early in central auditory processing. The experiments reported here have reevaluated the role of adaptation in grouping by onset asynchrony and explored further the inhibitory account of the restoration effect. Varying the frequency of the precursor in the range ± 10% relative to the vowel harmonic (Experiment 1), or introducing a silent interval from 0 to 320 ms between the precursor and the vowel (Experiment 2), both produce effects on vowel quality consistent with those predicted from peripheral adaptation or recovery from it. However, there were some listeners for whom even the smallest gap largely eliminated the effect of the precursor. Consistent with the inhibitory account of the restoration effect, a contralateral pure tone whose frequency is close to that of the precursor is highly effective at restoring the contribution of the asynchronous harmonic (Experiment 3). When the frequencies match, lateralization cues arising from binaural fusion of the precursor and contralateral tone may also contribute to this restoration.     

Perceived and capitalization support are substantially similar: implications for social support theory

Social support is typically thought to protect people from bad events, whereas capitalization support augments people's reactions to good events. Because social support and capitalization support apply to different classes of events, most theory predicts that measures of perceived support and capitalization support should be empirically distinct. We tested a new theory that hypothesizes that the main effects between perceived support and mental health do not reflect stress and coping primarily, but instead reflect ordinary, yet affectively consequential conversations and shared activities, some of which include positive events. According to this view, perceived support and capitalization support should be substantially correlated, should have similar links to other constructs, and their links to favorable affect should overlap, yet not be completely redundant. In three samples, results were consistent with the new theory, when correlations reflected social influences. When correlations reflected trait influences, perceived and capitalization support showed greater overlap.     

Interpersonal trust and market value moderates the bias in women’s preferences away from attractive high-status men

Women appear to exhibit a subtle reluctance to engage in long-term relationships with physically attractive, high-status men. We propose that this bias away from men of very high market value is based on fear that these males may desert a relationship and also on the comparative self-perceived market value of the women. Therefore, interpersonal trust and perceived market value should moderate the extent of this counterintuitive bias. To test this proposal, we asked women with varying levels of interpersonal trust and self-perceived desirability to consider physically-attractive and physically-average men of high, medium and low socioeconomic status and rate each in terms of attractiveness as a long-term partner. Results showed that women’s perceptions of their own desirability and their level of trust predicted their ratings of men with high-value in the mating market, and that women with high levels of both desirability and trust were less likely to show a bias away from high-value men. Interpersonal trust and desirability moderate the degree to which women find physically attractive men attractive as potential partners.     

Age variation in the prevalence of DSM-IV disorders in cases of suicide of middle-aged and older persons in Sydney

Data concerning 127 persons aged 35 years or above who died by suicide (as determined in consecutive cases by a Sydney coroner) were analyzed. Psychological autopsy (PA) interviews were conducted in 52 cases, and details were compared with the 75 cases where data were available only from coroner's files (CF). Most characteristics of the two groups were similar, although more CF suicide victims were of Asian background and unable to speak English fluently. Consensus diagnoses were reached following detailed discussion about PA and CF cases. Logistic regression showed no significant difference between age-groups in the proportion diagnosed with major depression, which contrasts with the results of an earlier U.S. study.     

Stepfamily Education: A Case Study

Stepfamily education programs are becoming increasingly common. While research on these programs is also increasing, the extant literature tends to be quantitative and cross-sectional. To more fully understand the stepfamily education experience, this case study focuses on the perceptions, feelings, and reports of one participating couple in the Smart Steps program. The nuances and complexities of this single case highlight the sequentiality and reasons for seeking out and participating in stepfamily education. A holistic portrayal of the perceived benefits of attending is also provided, including improvements with spouse, ex-spouse, and children.