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471.
Jordan Pola Harry J. Wyatt Marcie Lustgarten 《Attention, perception & psychophysics》1992,52(2):186-200
Subjects viewed a foveally stabilized target presented against a background field of dots moving sinusoidally. Several different modes of viewing the target were used (subjects were instructed to gaze, look, or hold), and the frequency of sinusoidal field motion was varied from 1/32 to 2 Hz. In line with previous findings, the presence of a stabilized target resulted in substantial suppression of optokinesis. The characteristics of this suppression (gain and phase of slow residual eye movements) were dependent on both the mode of viewing the target and the frequency of field motion. When subjects used an imaginary target, little suppression occurred. These findings provide an overall profile of dynamic characteristics of mechanisms involved in the suppression of optokinesis. They support the view that this suppression is significantly determined by the presence of a target against a moving background (even without retinal slip), and by the mode of attending to the target. 相似文献
472.
473.
J L Jordan 《Psychological reports》1990,67(2):656-658
120 quality assurance engineers indicated how frequently job stressors, causing distress related to role ambiguity, role conflict, role overload, and career development, affected them at work. They also indicated their satisfaction with their most recent performance appraisal. Satisfaction with performance appraisal was significantly negatively correlated with each stressor. 相似文献
474.
Jordan B. Westcott Matthew C. Fullen Justin Jordan 《Journal of counseling and development : JCD》2023,101(1):15-28
Although advocacy is a priority for counseling professionals, little is known about counseling advocates’ participation in the legislative advocacy process. Recent legislation to address the opioid crisis allowed counseling advocates to provide public comments to advance counselor inclusion in the Medicare program. A thematic analysis of 548 public comments provided on behalf of the counseling profession yielded four categories: advocacy on behalf of (1) the proposed rule change; (2) broader Medicare inclusion; (3) the proposed rule change with an additional request for broader Medicare reimbursement; and (4) no clear advocacy. Subthemes included increasing access to care, qualifications necessary to provide care, and the urgency of the opioid epidemic, among others. Implications for the counseling profession and counselor advocacy are discussed. 相似文献
475.
Sophie A. Lazarus Jordan Beardslee Sarah L. Pedersen Stephanie D. Stepp 《Journal of abnormal child psychology》2017,45(6):1157-1167
Many studies examining the association between borderline personality disorder (BPD) and alcohol use during adolescence have focused on between-individual differences (rank order stability), comparing whether adolescents with elevated rates of alcohol use have higher BPD symptoms than those with lower rates of alcohol use. As such, the extent to which an individual’s alcohol use is associated with concurrent and future BPD symptoms has been relatively unstudied. The current study assessed year-to-year fluctuations in alcohol use and BPD symptoms in a large urban sample of girls from age 14 to age 17 (N = 2450). The primary aim was to examine whether increases in alcohol use were associated with increases in adolescent girls’ BPD symptoms in the same year and in the following year. Results of fixed-effects (within-individual) models revealed that even while controlling for the time-varying impact of symptoms of both internalizing and externalizing disorders, prior and concurrent other substance use, and all time invariant, pre-existing differences between individuals, higher past-year alcohol use was associated with higher levels of BPD symptoms. Furthermore, this association did not vary by age, or by sociodemographic factors, including child race and socioeconomic status of the family. The results of this study indicate heightened risk for the exacerbation of BPD symptoms following increases in alcohol use frequency and highlight the potential utility of interventions targeting drinking behavior for preventing escalations in BPD symptoms. 相似文献
476.
Kerri N. Boutelle Stephanie Knatz Jordan Carlson Kristie Bergmann Carol B. Peterson 《Cognitive and behavioral practice》2017,24(3):363-373
Data suggests that individuals who binge eat are more responsive to food cues in the environment and less sensitive to satiety cues. The aim of this open trial was to evaluate the feasibility, acceptability, and initial effectiveness of a novel treatment grounded in Schachter’s externality theory targeting food cue reactivity and satiety responsiveness with obese adults who binge eat. Treatment was provided in groups, and utilized appetite monitoring, cue-exposure treatment, in vivo exercises, self-monitoring, and coping skills. Twenty-eight overweight and obese adults who binge eat (82% female; mean age = 47.5 years [SD = 12.8]; BMI = 38.9 [SD = 10.3]; 79% White non-Hispanic) participated in a 4-month group-based treatment program. Assessments were conducted at baseline, posttreatment, and 3-month follow-up time points. Results indicated that this treatment was well accepted and had high retention at posttreatment. Initial effectiveness showed significant decreases in BMI, and improvements in loss of control and overeating episodes, food responsiveness, and power of food. The majority of results were maintained at the 3-month follow-up time point. This open trial provides preliminary evidence for the feasibility, acceptability, and initial effectiveness of this treatment on both eating disorder symptoms and weight in obese adults who binge eat. Because these data are preliminary, further treatment development and randomized controlled studies are needed. 相似文献
477.
Viewing distance determines a range of factors affecting reading performance. Previous studies of Chinese-character reading
have shown considerable disagreement and inconsistency in their choice of viewing distances, however, with obvious implications
for research in this area. The present study aimed to resolve this issue by determining the optimal viewing distance for studies
of normal Chinese reading. Stimuli were pages of text that were composed of a standard Chinese typeface (Song) that was presented
in a standard size (10.5 pt). Forty reading distances were used, ranging from 2.5 to 100.0 cm. Distances within the range
of 7.5–55.0 cm produced faster reading rates than did the distances at either end of the continuum, and a regression model
showed that 35 cm was the optimal viewing distance. These findings indicate an optimal range of retinal image sizes between
2.0° and 0.3° per character. The implications of these findings for understanding the processes that are involved in Chinese
reading and for the appropriate presentation of Chinese stimuli in experiments are discussed. 相似文献
478.
The study of arousal and attention could be of prominent importance for elucidating both fundamental and practical aspects
of the mind–brain puzzle. Defined as “general activation of mind” (Kahnemann in Attention and effort. Prentice-Hall, New Jersey,
1973), or “general operation of consciousness” (Thacher and John in Functional neuroscience: foundations of cognitive processing.
Erlbaum, Hillsdale, 1977), arousal can be considered as a starting point of fundamental research on consciousness. Similar role could be assigned
to attention, which can be defined by substituting the attributes “general” with “focused”. Concerning the practical applications,
the empirically established correlation between neuronal oscillations and arousal/attention levels is widely used in research
and clinics, including neurofeedback, brain–computer communication, etc. However, the neurophysical mechanism underlying this
correlation is still not clear enough. In this paper, after reviewing some present classical and quantum approaches, a transition
probability concept of arousal based on field–dipole quantum interactions and information entropy is elaborated. The obtained
analytical expressions and numerical values correspond to classical empirical results for arousal and attention, including
the characteristic frequency dependence and intervals. Simultaneously, the fundamental (substrate) role of EEG spectrum has
been enlightened, whereby the attention appears to be a bridge between arousal and the content of consciousness. Finally,
some clinical implications, including the brain-rate parameter as an indicator of arousal and attention levels, are provided. 相似文献
479.
Martin McPhillips Julie‐Anne Jordan‐Black 《The British journal of educational psychology》2009,79(3):419-438
Background Previous research has produced conflicting results regarding the effects of season of birth and age‐position on cognitive attainments. In Northern Ireland the school year divides the summer season into two providing an opportunity to evaluate the relative contribution of season of birth and age‐position effects. Aims To investigate the relationship between attainment in literacy skills and month of birth for primary and secondary school pupils and to determine the relationship between motor skills and month of birth in primary school pupils. Sample One thousand one hundred and twenty four primary school pupils participated, and results for key stage 3 (KS3) English and GCSE English Language, for 3,493 Year 10 and 3,697 Year 12 secondary school pupils, respectively, were obtained. Method Primary school pupils were individually assessed using standardised reading and spelling tests, as well as tests of motor skill. They were also assessed using a standardised group reading test in their class groups. For the secondary school pupils, the results for two year cohorts, in KS3 English and GCSE English language, respectively, were analysed. Results For the primary school pupils there was evidence of both a season of birth and an age‐position effect on all of the cognitive measures, particularly in the early years of schooling. There was, also, evidence of a significant age‐position effect at both KS3 and GCSE in favour of the older pupils. For the younger primary school pupils there was evidence of significant age‐position effects on both motor measures. Conclusions The findings from the present study suggest that month of birth may be related to both season of birth and age‐position effects. These effects may be compounded, particularly in the early years of primary school, when summer born children are youngest in their year, as in England. In Northern Ireland, age‐position effects are also evident in secondary school public examination results, which may have implications for long‐term life choices. 相似文献
480.
To investigate whether conscious judgments of movement onset are based solely on pre-movement signals (i.e., premotor or efference copy signals) or whether sensory feedback (i.e., reafferent) signals also play a role, participants judged the onset of finger and toe movements that were either active (i.e., self initiated) or passive (i.e., initiated by the experimenter). Conscious judgments were made by reporting the position of a rotating clock hand presented on a computer screen and were then compared to the actual measured time of movement onset. In line with previous studies, judgment errors were found to be anticipatory for both finger and toe movements. There was a significant difference between judgment errors for active and passive movements, with judgments of active movements being more anticipatory than judgments of passive movements. This is consistent with a pre-movement (from here on referred to as an “efferent”) account of action awareness because premotor and efference copy signals are only present in active movements, whereas the main source of movement information in passive movements is sensory feedback which is subject to time delays of conduction (and hence predicts later judgment times for passive movements). However, judgments of active toe movement onset time were less anticipatory than judgments of active finger movement onset time. This pattern of results is not consistent with a pure efferent account of conscious awareness of action onset - as this account predicts more anticipatory judgments for toe movements compared to finger movements. Instead, the data support the idea that conscious judgments of movement onset are based on efferent (i.e., premotor, efference copy) and reafferent (i.e., feedback from the movement) components. 相似文献