Left-hemisphere activation is associated with enhanced vocal pitch error detection in musicians with absolute pitch

The ability to process auditory feedback for vocal pitch control is crucial during speaking and singing. Previous studies have suggested that musicians with absolute pitch (AP) develop specialized left-hemisphere mechanisms for pitch processing. The present study adopted an auditory feedback pitch perturbation paradigm combined with ERP recordings to test the hypothesis whether the neural mechanisms of the left-hemisphere enhance vocal pitch error detection and control in AP musicians compared with relative pitch (RP) musicians and non-musicians (NM). Results showed a stronger N1 response to pitch-shifted voice feedback in the right-hemisphere for both AP and RP musicians compared with the NM group. However, the left-hemisphere P2 component activation was greater in AP and RP musicians compared with NMs and also for the AP compared with RP musicians. The NM group was slower in generating compensatory vocal reactions to feedback pitch perturbation compared with musicians, and they failed to re-adjust their vocal pitch after the feedback perturbation was removed. These findings suggest that in the earlier stages of cortical neural processing, the right hemisphere is more active in musicians for detecting pitch changes in voice feedback. In the later stages, the left-hemisphere is more active during the processing of auditory feedback for vocal motor control and seems to involve specialized mechanisms that facilitate pitch processing in the AP compared with RP musicians. These findings indicate that the left hemisphere mechanisms of AP ability are associated with improved auditory feedback pitch processing during vocal pitch control in tasks such as speaking or singing.     

Blur detection is unaffected by cognitive load

Blur detection is affected by retinal eccentricity, but is it also affected by attentional resources? Research showing effects of selective attention on acuity and contrast sensitivity suggests that allocating attention should increase blur detection. However, research showing that blur affects selection of saccade targets suggests that blur detection may be pre-attentive. To investigate this question, we carried out experiments in which viewers detected blur in real-world scenes under varying levels of cognitive load manipulated by the N-back task. We used adaptive threshold estimation to measure blur detection thresholds at 0°, 3°, 6°, and 9° eccentricity. Participants carried out blur detection as a single task, a single task with to-be-ignored letters, or an N-back task with four levels of cognitive load (0, 1, 2, or 3-back). In Experiment 1, blur was presented gaze-contingently for occasional single eye fixations while participants viewed scenes in preparation for an easy picture recognition memory task, and the N-back stimuli were presented auditorily. The results for three participants showed a large effect of retinal eccentricity on blur thresholds, significant effects of N-back level on N-back performance, scene recognition memory, and gaze dispersion, but no effect of N-back level on blur thresholds. In Experiment 2, we replicated Experiment 1 but presented the images tachistoscopically for 200 ms (half with, half without blur), to determine whether gaze-contingent blur presentation in Experiment 1 had produced attentional capture by blur onset during a fixation, thus eliminating any effect of cognitive load on blur detection. The results with three new participants replicated those of Experiment 1, indicating that the use of gaze-contingent blur presentation could not explain the lack of effect of cognitive load on blur detection. Thus, apparently blur detection in real-world scene images is unaffected by attentional resources, as manipulated by the cognitive load produced by the N-back task.     

The relationship between family‐of‐origin experiences and sexual satisfaction in married couples

This study examined the relationship between perceptions of family‐of‐origin experiences, sexual satisfaction and marital quality. The sample consisted of 3953 married couples who responded to the relationship evaluation. The results showed that more positive overall family‐of‐origin experiences and parent–child relationships were related to higher sexual satisfaction. Overall, family‐of‐origin experiences and parent–child relationships were predictive of higher sexual satisfaction; however, that relationship was significantly mediated by marital quality. There was a strong positive relationship between marital quality and sexual satisfaction. No major gender differences emerged from the findings. The results suggest that family‐of‐origin experiences play a key role in the sexual satisfaction of married couples, especially when mediated by marital quality, and should be considered in treatment, education and research.     

Relationship Self-Regulation and Relationship Quality: The Moderating Influence of Gender

Relationship quality, as measured by relationship satisfaction and stability, is important to understanding how happy a couple is and the chances their relationship will end. Prior research has linked two aspects of relationship self-regulation (RSR), effort and strategies to improve a relationship, to increased levels of satisfaction and stability, but has not yet examined if gender moderates this association. Our paper addresses how both aspects of RSR are associated with increases in satisfaction and stability for male and female partners using data from the RELATionship Evaluation Survey. In the sample of 8006 men and women in a variety of romantic unions, we find that both aspects of RSR are positively associated with both aspects of relationship quality, but that this association is stronger for women’s reports of satisfaction than men’s. Additionally, relationship effort has a slightly stronger association with stability for women than men. Both clinical and research applications of these findings are discussed.     

Maintenance of Parent-Implemented Discrete-Trial Instruction during Videoconferencing

Access to behavior-analytic professionals who can implement interventions like discrete-trial instruction (DTI) may be limited for families living in rural communities. We trained four rural parents of children with autism to implement DTI accurately with a confederate using in vivo behavioral skills training. The DTI skills that parents demonstrated with a confederate generalized to working with their children. We then assessed whether periodic supervision during videoconferencing maintained parents’ DTI skills following training. Parents accurately implemented untrained DTI programs with their children and maintained accurate implementation over several months of remote supervision occurring twice a week, weekly, and biweekly. Videoconferencing may be an effective way for individuals responsible for direct implementation to maintain contact with behavior analysts who are not locally accessible.     

The Role of Auditory Cues in the Detection of State Anxiety 1

Detecting anxiety is essential in both help-giving settings and in everyday social relationships. The studies reported here represent a follow-up to an earlier set of studies in which observers (raters) accurately identified others' (expressers') state anxiety using either video-only cues or audio-video cues. The earlier studies had included expressers who were repressors and nonrepressors, while the present studies included only nonrepressors. Observers viewedheard selected segments of previously videotaped expressers' self-reported high and low state anxiety experiences. Surprisingly, unlike the earlier studies, state anxiety was significantly inaccurately evaluated when video-only cues were used, but when audio cues were available, state anxiety was correctly identified. Information in video-only cues seemed to mislead observers since low compared with high state anxiety was rated as more anxious. These studies, and the significant comparison between studies with audio cues present and with audio cues absent, indicate the impact of auditory cues in detecting state anxiety in others.     

Explaining the gender difference in depressive symptoms

It was hypothesized that women are more vulnerable to depressive symptoms than men because they are more likely to experience chronic negative circumstances (or strain), to have a low sense of mastery, and to engage in ruminative coping. The hypotheses were tested in a 2-wave study of approximately 1,100 community-based adults who were 25 to 75 years old. Chronic strain, low mastery, and rumination were each more common in women than in men and mediated the gender difference in depressive symptoms. Rumination amplified the effects of mastery and, to some extent, chronic strain on depressive symptoms. In addition, chronic strain and rumination had reciprocal effects on each other over time, and low mastery also contributed to more rumination. Finally, depressive symptoms contributed to more rumination and less mastery over time.