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161.
Anchoring in cyclical movements has been defined as regions of reduced spatial or temporal variability [Beek, P. J. (1989). Juggling dynamics. PhD thesis. Amsterdam: Free University Press] that are typically found at movement reversal points. For in-phase and anti-phase movements, synchronizing reversal points with a metronome pulse has resulted in decreased anchor point variability and increased pattern stability [Byblow, W. D., Carson, R. G., & Goodman, D. (1994). Expressions of asymmetries and anchoring in bimanual coordination. Human Movement Science, 13, 3-28; Fink, P. W., Foo, P., Jirsa, V. K., & Kelso, J. A. S. (2000). Local and global stabilization of coordination by sensory information. Experimental Brain Research, 134, 9-20]. The present experiment examined anchoring during acquisition, retention, and transfer of a 90 degrees phase-offset continuous bimanual coordination pattern (whereby the right limb lags the left limb by one quarter cycle), involving horizontal flexion about the elbow. Three metronome synchronization strategies were imposed: participants either synchronized maximal flexion of the right arm (i.e., single metronome), both flexion and extension of the right arm (i.e., double metronome within-limb), or flexion of each arm (i.e., double metronome between-limb) to an auditory metronome. In contrast to simpler in-phase and anti-phase movements, synchronization of additional reversal points to the metronome did not reduce reversal point variability or increase pattern stability. Furthermore, practicing under different metronome synchronization strategies did not appear to have a significant effect on the rate of acquisition of the pattern. 相似文献
162.
Kim A. Wright Dominic H. Lam Richard G. Brown 《Personality and individual differences》2009,47(7):753-757
The current study describes the development and validation of a new subscale to be used with the BIS/BAS scales (Carver & White, 1994). This subscale measures lowered approach motivation following nonreward. Factor analysis of the new subscale was carried out within a sample of 308 University students, test–retest reliability was established within a sample of 62 individuals, and construct validity was explored in a sample of 86 individuals by comparing scores on the new subscale with those on an existing self-report measure of apathy and on a behavioural measure of persistence. Reliability and validity of the new frustrative nonreward responsiveness subscale was found to be adequate within the populations studied. The findings are discussed in relation to theoretical accounts of BAS and BIS sensitivity. 相似文献
163.
This research examines the methodologies employed by cognitive psychologists to study "false memory," and assesses if these methodologies are likely to facilitate scientific progress or perhaps constrain the conclusions reached. A PsycINFO search of the empirical publications in cognitive psychology was conducted through January, 2004, using the subject heading, "false memory." The search produced 198 articles. Although there is an apparent false memory research bandwagon in cognitive psychology, with increasing numbers of studies published on this topic over the past decade, few researchers (only 13.1% of the articles) have studied false memory as the term was originally intended--to specifically refer to planting memory for an entirely new event that was never experienced in an individual's lifetime. Cognitive psychologists interested in conducting research relevant to assessing the authenticity of memories for child sexual abuse should consider the generalizability of their research to the planting of entirely new events in memory. 相似文献
164.
Steketee G Lam JN Chambless DL Rodebaugh TL McCullouch CE 《Behaviour research and therapy》2007,45(1):11-19
The present study explored the effect of perceived criticism (PC) on levels of anxiety and depression during behavioral treatment among patients diagnosed with obsessive-compulsive disorder (OCD) or panic disorder with agoraphobia (PDA). We posited that patients' perceptions of relatives' criticism and the degree to which they were upset by the criticism (UC) would be related to negative affect and discomfort during exposure. The sample included 75 patients with a primary diagnosis of OCD (n=43) or PDA (n=32) and their participating relatives. Measures of patients' weekly ratings of PC and upset about the criticism, anxious and depressed mood, and subjective discomfort during exposure treatment were analyzed using a mixed model regression approach (SAS Proc Mixed). Patients' anxious and depressed mood predicted greater discomfort during exposure. Patients who were more UC also had higher weekly ratings of anxiety and depression, and more discomfort during exposure sessions. Findings suggest that treatment outcome may be improved by attention to patients' reactions to their interpersonal environment. 相似文献
165.
Justin T. Buckingham Tiffany A Lam Fernanda C Andrade Brandon L Boring Danielle Emery 《The Journal of social psychology》2019,159(3):284-298
Previous research shows that people with high self-esteem cope with threats to the self by reducing the extent to which their self-worth is contingent on the threatened domain (Buckingham, Weber, & Sypher, 2012). The present studies tested the hypothesis that this is a defensive process. In support of this hypothesis, Study 1 (N = 160), showed that self-affirmation attenuates the tendency for people with high self-esteem to reduce their contingencies of self-worth following self-threat. Furthermore, Study 2 (N = 286), showed that this tendency was more prevalent among people with defensive self-esteem than among those with secure self-esteem. The present studies imply that reducing contingent self-worth after self-threat is a defensive process. We discuss implications for theories of contingent self-worth. 相似文献
166.
Charlene L. M. Lam Junhong Yu 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2017,24(5):471-480
The relationship between depression, loneliness, and cognitive functioning among the elderly is not well understood in the literature. In the present study, we tested the moderating influence of depressive symptoms on loneliness and cognitive functioning. We recruited 100 community-dwelling older adults in Hong Kong. Demographic information, perceived loneliness, depressed mood, and general cognitive status were assessed. Results indicated that married participants reported lower levels of perceived loneliness (t (96) = 2.26, p = .03). We found a significant moderating effect of depressive symptoms on the relationship between perceived loneliness and general cognitive status (B = ?.05, p = .002). Perceived loneliness correlated negatively with general cognitive status only in participants with higher levels of depressed mood (B = ?.16, p = .01). Together, these findings suggest that perceived loneliness combined with depressed mood is related to poorer general cognitive status in older adults. The implications of these findings are discussed. 相似文献
167.
168.
Rebecca. Wing‐yi Cheng Shui‐fong. Lam Joanne. Chung‐yan Chan 《The British journal of educational psychology》2008,78(2):205-221
Background . There has been an ongoing debate about the inconsistent effects of heterogeneous ability grouping on students in small group work such as project‐based learning. Aim . The present research investigated the roles of group heterogeneity and processes in project‐based learning. At the student level, we examined the interaction effect between students' within‐group achievement and group processes on their self‐ and collective efficacy. At the group level, we examined how group heterogeneity was associated with the average self‐ and collective efficacy reported by the groups. Sample . The participants were 1,921 Hong Kong secondary students in 367 project‐based learning groups. Method . Student achievement was determined by school examination marks. Group processes, self‐efficacy and collective efficacy were measured by a student‐report questionnaire. Hierarchical linear modelling was used to analyse the nested data. Results . When individual students in each group were taken as the unit of analysis, results indicated an interaction effect of group processes and students' within‐group achievement on the discrepancy between collective‐ and self‐efficacy. When compared with low achievers, high achievers reported lower collective efficacy than self‐efficacy when group processes were of low quality. However, both low and high achievers reported higher collective efficacy than self‐efficacy when group processes were of high quality. With 367 groups taken as the unit of analysis, the results showed that group heterogeneity, group gender composition and group size were not related to the discrepancy between collective‐ and self‐efficacy reported by the students. Conclusions . Group heterogeneity was not a determinant factor in students' learning efficacy. Instead, the quality of group processes played a pivotal role because both high and low achievers were able to benefit when group processes were of high quality. 相似文献
169.
Self-determined work motivation predicts important job outcomes, such as job satisfaction [Richer, S. F., Blanchard, C., & Vallerand, R. J. (2002). A motivational model of work turnover. Journal of Applied Social Psychology, 32, 2089–2113], but what predicts self-determined work motivation is less fully understood. We tested general causality orientation—specifically autonomy and control orientation—as a predictor of self-determined work motivation, which in turn was expected to predict job satisfaction and identification commitment as job outcomes. Regression analyses confirmed our hypotheses such that autonomy orientation predicted job outcomes via increased self-determined work motivation. Control orientation predicted self-determined work motivation but did not affect either of the two job outcomes. Findings are discussed with respect to the importance of individual differences in understanding job outcomes. 相似文献
170.
Andrew J Levine Charles H Hinkin Sarah Marion Allison Keuning Steven A Castellon Mona M Lam Marta Robinet Douglas Longshore Thomas Newton Hector Myers Ramani S Durvasula 《Health psychology》2006,25(3):329-335
Controversy remains regarding the reliability of methods used to determine adherence to antiretroviral medication in HIV. In this study the authors compared adherence rates of 119 HIV-positive participants during a 6-month study, as estimated via electronic monitoring (EM) and self-report (SR). Adherence for both short (4-day) and long (4-week, or intervisit) periods was examined, as well as factors that underlie discrepancies between EM and SR. Results showed that intervisit EM estimates were consistently lower than those of SR. SR estimates based on shorter periods (4 days) were closer to those of EM. Higher discrepancies between EM and SR estimates were associated with lower cognitive functioning and externalized locus of control. These findings lend support for using both EM and SR methods; however, study design (e.g., length) and other factors (e.g., cognitive status, cost) should be considered. 相似文献