Timing and aging: slowing of fastest regular tapping rate with preserved timing error detection and correction

This study assessed motor limits of regular tapping, timing error detection, and correction in 60 participants aged from 19 to 98 years. Rate limitations on motor production were estimated from the average inter-tap interval when tapping as fast as possible for 30 s. Timing error detection required participants to judge whether a sound sequence presented at a slow, intermediate, or fast speed contained an irregularity because of phase shift. This was performed with or without synchronizing to the sounds. On the basis of the just-detectable positive phase shift (JND), participants synchronized with sequences containing phase shifts that were subliminal, just detectable or supraliminal. On average, JNDs were 9% of the inter-onset interval and by and large were not affected by synchronization tapping. Speed of error correction was estimated from the number of tones to return within 20% of the preshift synchronization error. Consistent with previous findings of motor slowing with aging, the fastest inter-tap interval increased with age. However, there was no age-related decline in JNDs or speed of error correction, both of which reflect predictive abilities for intervals within the motor repertoire of human adults. These results point towards intact timing error processing up to an advanced age. In assessing timing abilities in the brain of older adults, it is important to differentiate between motor slowing and its impact on rhythmic behavior (e.g., walking pace) from anticipatory mechanisms ('what to expect when') and how these are used to adjust the timing of actions ('what to do when').     

Developing equivalent Chinese and English scale‐point labels for rating scales used in survey research

Rating scales are the most frequently‐used response tool in surveys, and the scale levels are commonly described with words [verbal scale‐point labels (VSPL)]. In this study, Chinese VSPL were identified which employ five‐point scales that are psychometrically equivalent to English VSPL. In several bilingual studies, a total of 61 Chinese and 44 English items addressing intensity, frequency, and agreement rating modalities were tested. For each VSPL, three aspects were measured: position between minimum and maximum, familiarity, and appeal. The correspondence between pertinent Chinese and English words was also assessed. Based on these findings, we recommend specific VSPL that are best‐suited for achieving equivalence between Chinese and English in rating scales.     

Enacting modesty in Chinese culture: The joint contribution of personal characteristics and contextual features

This research revealed the joint impact of personality traits, social axioms, role relationships and the privacy of social situations on the enactment of three types of modesty, namely, avoiding attention, self‐effacement, and enhancement of others, among Hong Kong Chinese teenage females. The modest personality trait was found to relate positively to these modest behaviours. An individual's belief in reward for application significantly predicted self‐effacement, and the belief in social cynicism significantly predicted avoiding attention and enhancement of others. Contextual variables as measured by the role relationships and the privacy of the social setting also significantly affected the levels of these modest behaviours.     

Sexuality and Health Among Chinese Seniors in Canada

Research on sexuality among older immigrants is extremely inadequate. This paper presents the results and analysis based on a national survey using a random sample of 2,272 Chinese-Canadian seniors. Self-reported health is examined in relation to a range of demographic as well as sexuality variables. Logistic regression analysis shows that language (English) ability and income play an important role in the health of Chinese-Canadian seniors, along with the sexuality variables. Among men, both the frequency of sexual activity and satisfaction with sex life have a positive effect on health. Among women, only sexual satisfaction is found to be significant. Results from this study can inform future research, service delivery, and policymaking in health care and social service for seniors.     

Provision of Genetics Services on Guam

Guam’s geographic isolation and lack of community resources have resulted in unique healthcare needs. In 2006, the Western States Genetic Services Collaborative (WSGSC) conducted a genetics needs assessment and found that professional development is limited, families lack access to genetic services, and improved coverage of genetic testing is needed. With funding from the WSGSC, a Guam genetics outreach clinic was established and staffed by genetic counselors and a medical geneticist from Hawaii. Four clinics have been held to date. Although several challenges have been encountered, including minimal coverage of genetic testing by Guam insurance companies, limited referrals for families with private insurance, and inappropriate referral indications, the outreach clinic has been successful at increasing access to genetic services and improving professional development. With more collaborative work by staff from Guam, Hawaii, and the WSGSC, provision and reimbursement of genetic services and testing will continue to improve.     

Spatial distortion induced by imperceptible visual stimuli

Previous studies have explored the effects of attention on spatial representation. Specifically, in the attentional repulsion effect, a transient visual cue that captures attention has been shown to alter the perceived position of a target stimulus to the direction away from the cue. The effect is also susceptible to retrospective influence, that attention appears to attract the target when the cue appears afterwards. This study examined the necessity of visual awareness of the cue in these phenomena. We found that when the cues were rendered invisible by backward visual masks, both repulsion and attraction effects were weakened but still observed. The results suggest that the effects possibly depend on processes that are not necessarily associated with conscious visual awareness of the cues. We conjecture that attentional shift produced by the weak, invisible cues may play a role in spatial distortion; but other possible accounts including non-attentional ones are also discussed.     

A REVIEW OF COMPARISON STUDIES IN APPLIED BEHAVIOR ANALYSIS

A commonly used research design in applied behavior analysis involves comparing two or more independent variables. Typically, the relative effectiveness of two different interventions is measured on a single dependent variable. In the current review, 54 comparison studies from seven different peer‐reviewed, behavior analytic journals were evaluated between the years 2002 and 2011. Each study was evaluated across seven dimensions: (1) experimental design, (2) setting, (3) participants, (4) type of comparison, (5) number of comparisons, (6) treatment integrity, and (7) outcome. There were some consistencies across studies, with half resulting in equivalent outcomes across comparisons. In addition, most studies employed the use of an alternating treatments or multi‐element single‐subject design and compared a teaching methodology. On the basis of these results, the value of comparison study as well as directions for future comparison research is discussed. Overall, comparison study is a worthy and important enterprise that requires a high degree of experimental control and a careful analyses of the results, regardless of whether the outcome clearly favored one independent variable or not. Copyright © 2013 John Wiley & Sons, Ltd.     

The Mark of an Ex-Prisoner: Perceived Discrimination and Self-Stigma of Young Men after Prison in Hong Kong

The stigma of being an ex-prisoner can lead to self-stigmatizing beliefs and hinder reintegration. For young ex-prisoners, this is particularly challenging as they need not only to transition from prison to society but from adolescence to adulthood. This study explores the experiences of discrimination and self-stigma of 16 young men recently released from Hong Kong prisons. Drawing on qualitative in-depth interviews, it reveals that participants perceived themselves as facing discrimination, mainly from prospective employers. Self-stigma was more salient with regard to lower self-worth and shame and embarrassment. Most adopted a “don't ask, don't tell” strategy in disclosing their identity as ex-prisoners. As very little research has been conducted on the experiences of returning offenders in Hong Kong, this study highlights the challenges of reentry.     

Can dancers suppress the haptically mediated interpersonal entrainment during rhythmic sway?

Interpersonal entrainment emerges spontaneously when partners performing rhythmic movements together exchange sensory feedback about the other's movements. In this study, we asked whether couples of expert dancers, non-dancers and mixed couples can suppress the spontaneous haptically mediated inter-personal entrainment when their rhythmic sway is paced by differing metronome tempos. Fifty-four young participants formed three types of couples: nine dancer couples, consisting of individuals with at least eight years systematic practice in traditional Greek dance; nine non-dancer couples, consisting of individuals with no prior experience in dance and nine mixed couples, consisting of one dancer and one novice partner. Partners swayed rhythmically for 60 s, at different pacing frequencies (one at 0.25 Hz and the other at 0.35 Hz) under three haptic contact conditions: no contact between them; light fingertip touch established in the 2nd trial segment (30 s); and light fingertip touch released in the 2nd trial segment (30 s). Spectral analysis of the antero-posterior center of pressure displacement revealed that light touch increased the deviation of the dominant from the target (pacing) sway frequency, decreased the proportion of the signal's power at the target frequency and increased the coherence between the partners' sway signals (inter-personal coherence). These effects were specific to the mixed group whereas touch interference was weaker in non-dancers and absent in dancers. In addition, the coherence between the trial segments (intra-personal coherence) significantly decreased with touch only for the non-dancer while it remained unchanged for the dancer partner of the mixed group suggesting that the dancer was leading the non-dancer partner. It is concluded that systematic practice with traditional dance can modulate the spontaneous tendency towards haptically mediated interpersonal entrainment.