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41.
During the execution of a cognitive task, the brain maintains contextual information to guide behavior and achieve desired goals. The AX-Continuous Performance Task is used to study proactive versus reactive cognitive control. Young adults tend to behave proactively in standard testing conditions. However, it remains unclear how interindividual variability (e.g., in cognitive and motivational factors) may drive people into more reactive or proactive control under the same task demands. We investigated the use of control strategies in a large population of healthy young adults. We computed the proactive behavioral index and consequently divided participants into proactive, reactive, and intermediate groups. We found that reactive participants were generally slower, presented lower context sensitivity, and larger response variability. Pupillary changes and blink rate index cognitive effort allocation. We measured, concomitantly to the task, the pupil size and frequency of blinks associated with the cue maintenance and response intervals. During the cue period, nonfrequent, nontarget cues led to increased pupil dilation and number of blinks in all participants. During the response interval, we found more errors and increased pupil dilation to the probe when all participants had to overcome a response bias generated by the frequent cue. Only reactive participants showed larger response-related pupil when they had to overcome a response bias related to the frequent probe. Contrary to expectations, groups did not differ in ocular measures in the cue period. In conclusion, interindividual differences in cognitive control between healthy adults can be mapped onto different patterns of effort allocation indexed by the pupil.  相似文献   
42.
We report normative data from a large (N = 307) sample of young adult participants tested with a computerized version of the long form of the classical Benton Facial Recognition Test (BFRT; Benton & Van Allen, 1968). The BFRT-c requires participants to match a target face photograph to either one or three of six face photographs presented simultaneously. We found that the percent accuracy on the BFRT-c (81%–83%) was below ceiling yet well above chance level, with little interindividual variance in this typical population sample, two important aspects of a sensitive clinical test. Although the split-half reliability on response accuracy was relatively low, due to the large variability in difficulty across items, the correct response times measured in this version—completed in 3 min, on average—provide a reliable and critical complementary measure of performance at individual unfamiliar-face matching. In line with previous observations from other measures, females outperformed male participants at the BFRT-c, especially for female faces. In general, performance was also lower following lighting changes than following head rotations, in line with previous studies that have emphasized participants’ limited ability to match pictures of unfamiliar faces with important variations in illumination. Overall, this normative data set supports the validity of the BFRT-c as a key component of a battery of tests to identify clinical impairments in individual face recognition, such as observed in acquired prosopagnosia. However, this analysis strongly recommends that researchers consider the full test results: Beyond global indexes of performance based on accuracy rates only, they should consider the time taken to match individual faces as well as the variability in performance across items.  相似文献   
43.
Low- and middle-income countries need simple, technically sound developmental screening tools. The Ages and Stages Questionnaires, 3rd edition (ASQ-3) is widely accepted as a scientifically reliable and valid, user-friendly, and easy-to-learn and administer tool. This study documents the cultural adaptation, validation, and standardization of the Georgian ASQ-3 for children 1–66 months. The parents of 2974 children from one to 66 months completed the Georgian ASQ-3. We compared mean domain scores to the US normative sample, and performed multivariate analyses to detect variables associated with ASQ-3 cutoff scores. Cronbach's alpha values for all age groups varied from 0.643 to 0.824 across areas. We found significant differences in cutoff points between the Georgian ASQ-3 and US reference population in most domains across age groups. Child gender was associated with Communication (B, 0.453; p?=?0.01), Fine Motor (B, 0.457; p?=?0.01) and Personal–Social (B, 0.576; p?=?0.001) with scores for girls more frequently distributed above the cutoff. We found administration of the Georgian ASQ-3 was easy after adaptation. We recommend additional research to investigate sensitivity and specificity and gender differences.  相似文献   
44.
The present study aimed to clarify the inconsistent relationship between negative affect and innovative work behaviour by taking into account the role of affect activation and mindfulness. Building on the conservation of resources theory, we hypothesized that low-activated negative affect can be associated with increased innovativeness, but only for employees with high levels of mindfulness. Conversely, high-activated negative affect is expected to have a positive, direct relationship with innovative work behaviour. Data were collected from two independent samples, namely 163 French Canadian and 101 Italian employees. Consistent with our predictions, multiple regression analysis results showed that low-activated negative affect was positively related to innovative behaviour only when mindfulness was high (vs. low), whereas high-activated negative affect was directly associated with higher innovativeness. Our findings challenge the assumption that low-activated negative affects are associated with undermined innovative behaviour, suggesting that these affective states can be related to increased innovativeness if employees are mindful. On the other hand, they support the view that high-activated negative affects provide the energizing potential for instigating innovative actions. This study is unique in examining mindfulness as a moderator that is capable of shaping the link between deactivating negative affect and employee innovativeness. As such, it answers recent calls for research on how mindfulness can contribute to workplace functioning. Moreover, this is the first study to take into account the role of activation level in the negative affect-innovative work behaviour relationship.  相似文献   
45.
Recently, verbal credibility assessment has been extended to the detection of deceptive intentions, the use of a model statement, and predictive modeling. The current investigation combines these 3 elements to detect deceptive intentions on a large scale. Participants read a model statement and wrote a truthful or deceptive statement about their planned weekend activities (Experiment 1). With the use of linguistic features for machine learning, more than 80% of the participants were classified correctly. Exploratory analyses suggested that liars included more person and location references than truth‐tellers. Experiment 2 examined whether these findings replicated on independent‐sample data. The classification accuracies remained well above chance level but dropped to 63%. Experiment 2 corroborated the finding that liars' statements are richer in location and person references than truth‐tellers' statements. Together, these findings suggest that liars may over‐prepare their statements. Predictive modeling shows promise as an automated veracity assessment approach but needs validation on independent data.  相似文献   
46.

The effects of the magnitude of nonverbal consequences, monitoring, and social consequences on instruction-following were evaluated. Twenty-four undergraduates were exposed to a matching-to-sample procedure. The undergraduates underwent four experimental phases that differed regarding the presence or absence of the observer and the correspondence or non-correspondence of the instructions with the nonverbal contingency. In Experiments 1 and 2, the magnitudes of the nonverbal consequences were manipulated, and in Experiment 3, the effects of verbal reprimands on instruction-following were evaluated. The results revealed that alterations in the magnitudes of nonverbal consequences did not influenced the performances of the participants and that monitoring increased the probability that the participants would follow the instructions but not to an extent sufficient to maintain performance when the consequences did not correspond to the nonverbal contingency. The inclusion of verbal reprimands was necessary to achieve this effect. These results support the proposition that social control is important for maintaining instruction-following.

  相似文献   
47.
Recognizing individual faces outside one's race poses difficulty, a phenomenon known as the other-race effect. Most researchers agree that this effect results from differential experience with same-race (SR) and other-race (OR) faces. However, the specific processes that develop with visual experience and underlie the other-race effect remain to be clarified. We tested whether the integration of facial features into a whole representation-holistic processing-was larger for SR than OR faces in Caucasians and Asians without life experience with OR faces. For both classes of participants, recognition of the upper half of a composite-face stimulus was more disrupted by the bottom half (the composite-face effect) for SR than OR faces, demonstrating that SR faces are processed more holistically than OR faces. This differential holistic processing for faces of different races, probably a by-product of visual experience, may be a critical factor in the other-race effect.  相似文献   
48.
Carrasco and her colleagues have suggested that exogenous attention reduces the size of receptive fields at an attended location (Gobell & Carrasco, 2005; Yeshurun & Carrasco, 1998, 2000). Based on the hypothesis that categorical and coordinate spatial relations are more efficiently processed by smaller and larger receptive fields, respectively, we predicted that exogenous attention would be more beneficial to the processing of categorical spatial relations than coordinate spatial relations while it would disrupt the processing of coordinate spatial relations. To test these hypotheses, participants were tested using a variant of Posner's (1980) attentional cueing paradigm. Exogenous attention produced larger facilitative effects on categorical spatial processing than on coordinate spatial processing at a short cue-target stimulus onset asynchrony (100 ms, Experiment 1, N = 28), and this result was replicated regardless of cue size in Experiment 2 (N = 24). When the coordinate judgment was sufficiently difficult, exogenous attention disrupted the processing of coordinate spatial relations (Experiment 3, N = 28). These findings indicate that exogenous attention can differentially modulate the processing of categorical and coordinate spatial relations.  相似文献   
49.
ABSTRACT— Awards in the form of orders, medals, decorations, prizes, and titles are ubiquitous in monarchies and republics, private organizations, and not-for-profit and profit-oriented firms. Nevertheless, this kind of nonmaterial extrinsic incentive has been given little attention in the social sciences, including psychology. The demand for awards relies on an individual's desire for distinction, and the supply of awards is governed by the desire to motivate. The technique of analytic narratives is used to show that a number of empirically testable propositions about awards are consistent with observable data.  相似文献   
50.
The organization of tonal-temporal information in a memory task was studied in two experiments. The stimuli consisted of four different configurations of eight beeps, presented sequentially. In two configurations, the stimuli were tonal-time congruent, with (constant or variable) inter-stimulus tonal distances corresponding to (constant or variable) inter-stimulus time intervals. In the two other configurations, the stimuli were tonal-time incongruent, with (constant or variable) inter-stimulus tonal distances not corresponding to (variable or constant) inter-stimulus time intervals. After a learning phase consisting of 20 presentations of the target configuration, participants reproduced the spatial (Experiment 1) or temporal (Experiment 2) characteristics of the target 60 times in succession without ever re-examining the target configuration. Classically, in incongruent space-time conditions, the effects of variable inter-stimulus time intervals or inter-stimulus space intervals on the reproduction of constant distances (Tau effect) and constant durations (Kappa effect), respectively, are observed. However, our results showed that this was not the case when the spatial dimension was substituted for the tonal dimension (i.e., the distances between consecutive tones). The results are discussed in the light of the properties of the physical versus frequential space, that is, of a tonal dimension in which the different frequencies were considered as the spatial dimension.  相似文献   
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