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131.
Dave Koller Franziska Hofer Tuule Grolig Signe Ghelfi Bruno Verschuere 《Applied cognitive psychology》2020,34(6):1406-1418
The reaction time-based concealed information test (RT-CIT) has been used to judge the veracity of an examinees claim to be naïve by using RTs to test for recognition of relevant details. Here, we explore the validity of the RT-CIT to generate new knowledge about the incident—the searching CIT. In a mock terrorism study (n = 60) the RT-CIT not only allowed to link suspects to known crime details, but also allowed to reveal new crime details well above chance. A simulation study confirms the potential of the searching RT-CIT and identifies conditions under which it performs best. We used an archival dataset that met these conditions (high CIT effect, large number of item repetitions), and found better item classification performance than in the mock terrorism study. The searching RT-CIT could be a new, promising investigative tool to reveal new (e.g., crime) details to the investigative party. 相似文献
132.
Speed limits: orientation and semantic context interactions constrain natural scene discrimination dynamics 总被引:3,自引:0,他引:3
Rieger JW Köchy N Schalk F Grüschow M Heinze HJ 《Journal of experimental psychology. Human perception and performance》2008,34(1):56-76
The visual system rapidly extracts information about objects from the cluttered natural environment. In 5 experiments, the authors quantified the influence of orientation and semantics on the classification speed of objects in natural scenes, particularly with regard to object-context interactions. Natural scene photographs were presented in an object-discrimination task and pattern masked with various scene-to-mask stimulus-onset asynchronies (SOAs). Full psychometric functions and reaction times (RTs) were measured. The authors found that (a) rotating the full scenes increased threshold SOA at intermediate rotation angles but not for inversion; (b) rotating object or context degraded classification performance in a similar manner; (c) semantically congruent contexts had negligible facilitatory effects on object classification compared with meaningless baseline contexts with a matching contrast structure, but incongruent contexts severely degraded performance; (d) any object-context incongruence (orientation or semantic) increased RTs at longer SOAs, indicating dependent processing of object and context; and (e) facilitatory effects of context emerged only when the context shortly preceded the object. The authors conclude that the effects of natural scene context on object classification are primarily inhibitory and discuss possible reasons. 相似文献
133.
Klaus-Peter Dahle Christine Janka Franziska Gallasch Robert Lehmann 《Forensische Psychiatrie, Psychologie, Kriminologie》2008,2(4):213-221
This study compared a sample of 273 juvenile (aged 14 to under 18), 178 adolescent (aged 18 to under 21) and 273 adult (older than 20 years) male sex offenders modus operandi (or MO, the way in which they committed their offenses), frequency of recidivism and predicted recidivism via the static-99. In terms of the frequencies of the MO aspects we found that juveniles and adolescents differed significantly from adult sexual offenders. However, concerning the frequency of sexual violent behaviors, adolescents committed more severe offenses in contrast to the two other groups. The comparison of recidivism rates indicated that adolescent sexual offenders were significantly less likely to commit a new sexual offense, but were considerably more likely to commit a non-sexual violent offense compared to adult sexual offenders. For juvenile offenders, only few static-99 variables were predictive of future recidivism in comparison to the other groups, suggesting that the static-99 may only have a restricted utility in juvenile offenders. Further, juvenile offenders risk levels were found to fall primarily within the medium risk group making individual differentiation of potential risk difficult. It is suggested that additional predictors, which help to differentiate young sexual offenders must be investigated. 相似文献
134.
Jana Reifegerste Franziska Hauer Claudia Felser 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2017,24(6):672-702
Effects of aging on lexical processing are well attested, but the picture is less clear for grammatical processing. Where age differences emerge, these are usually ascribed to working-memory (WM) decline. Previous studies on the influence of WM on agreement computation have yielded inconclusive results, and work on aging and subject-verb agreement processing is lacking. In two experiments (Experiment 1: timed grammaticality judgment, Experiment 2: self-paced reading + WM test), we investigated older (OA) and younger (YA) adults’ susceptibility to agreement attraction errors. We found longer reading latencies and judgment reaction times (RTs) for OAs. Further, OAs, particularly those with low WM scores, were more accepting of sentences with attraction errors than YAs. OAs showed longer reading latencies for ungrammatical sentences, again modulated by WM, than YAs. Our results indicate that OAs have greater difficulty blocking intervening nouns from interfering with the computation of agreement dependencies. WM can modulate this effect. 相似文献
135.
Joint attention develops during the first year of life but little is known about its effects on long-term memory. We investigated whether joint attention modulates long-term memory in 9-month-old infants. Infants were familiarized with visually presented objects in either of two conditions that differed in the degree of joint attention (high versus low). EEG indicators in response to old and novel objects were probed directly after the familiarization phase (immediate recognition), and following a 1-week delay (delayed recognition). In immediate recognition, the amplitude of positive slow-wave activity was modulated by joint attention. In the delayed recognition, the amplitude of the Pb component differentiated between high and low joint attention. In addition, the positive slow-wave amplitude during immediate and delayed recognition correlated with the frequency of infants' looks to the experimenter during familiarization. Under both high- and low-joint-attention conditions, the processing of unfamiliar objects was associated with an enhanced Nc component. Our results show that the degree of joint attention modulates EEG during immediate and delayed recognition. We conclude that joint attention affects long-term memory processing in 9-month-old infants by enhancing the relevance of attended items. 相似文献
136.
Gorkan Ahmetoglu Franziska Leutner Tomas Chamorro-Premuzic 《Personality and individual differences》2011,51(8):1028-1033
Past studies highlight the importance of Trait Emotional Intelligence (EI) in the prediction of career success. Given the evidence that trait EI predicts job performance and job satisfaction, it is reasonable to expect this construct to also predict other forms of career success. In this study, we examine whether EI predicts entrepreneurship; that is, whether higher trait EI is linked to entrepreneurial behaviours and entrepreneurial success, and whether any effects of trait EI on entrepreneurship are independent of the personality trait of Core Self-Evaluations, demographic variables, and individual differences in entrepreneurial personality. Results show that trait EI predicts only some entrepreneurial outcomes beyond other variables examined, and with small effect sizes. This suggests that individual differences in entrepreneurship result only in part from inter-personal differences in trait EI. Implications for research and practice are discussed. 相似文献
137.
138.
Enhancement of glutamate release by L-fucose changes effects of glutamate receptor antagonists on long-term potentiation in the rat hippocampus
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Matthies H Schroeder H Smalla KH Krug M 《Learning & memory (Cold Spring Harbor, N.Y.)》2000,7(4):227-234
In previous studies L-fucose has been shown to facilitate long-term memory formation and to enhance and prolong long-term potentiation (LTP). To search for possible presynaptic or postsynaptic mechanisms that are affected by L-fucose, we examined the effect of L-fucose on (1) inhibition of LTP induction via glutamate receptors by antagonists, (2) paired-pulse facilitation, and (3) presynaptic transmitter release. Coapplication of 0.2 mM L-fucose with the competitive N-methyl-D-aspartate (NMDA) receptor antagonist, D-2-amino-5-phosphonovalerate (AP5), or coapplication of 0.2 mM L-fucose in the presence of an inhibitor for class I/II metabotropic glutamate receptors, (S)-alpha-methyl-4-carboxyphenylglycine (MCPG), reversed LTP blockade in the CA1-region of hippocampal slices. In contrast, L-fucose had no effect on the LTP blockade by the noncompetitive NMDA ion-channel blocker (5R,10S)-(+)-5-Methyl-10, 11-dihydro-5H-dibenzo[a,d]cyclohepten-5, 10-imine hydrogen maleate (MK-801). Paired-pulse facilitation, which is a primarily presynaptic phenomenon of short-term plasticity, was decreased in the presence of 0.2 mM L-fucose. Furthermore, L-fucose enhanced the K(+)-stimulated release of [(3)H]-D-aspartate from preloaded hippocampal slices in a concentration-dependent manner. These observations demonstrate an influence of L-fucose on transmitter release that in turn can increase transmitter availability at postsynaptic glutamate receptors. This effect of L-fucose may contribute to the LTP facilitation seen in vitro and in vivo as well as to improvement in memory formation. 相似文献
139.
Task-dependent role for dorsal striatum metabotropic glutamate receptors in memory 总被引:5,自引:0,他引:5
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Packard MG Vecchioli SF Schroeder JP Gasbarri A 《Learning & memory (Cold Spring Harbor, N.Y.)》2001,8(2):96-103
The effect of post-training intradorsal striatal infusion of metabotropic glutamate receptor (mGluR) drugs on memory consolidation processes in an inhibitory avoidance (IA) task and visible/hidden platform water maze tasks was examined. In the IA task, adult male Long-Evans rats received post-training intracaudate infusions of the broad spectrum mGluR antagonist α-methyl-4-carboxyphenylglycine (MCPG; 1.0, 2.0 mM/0.5 μL), the group I/II mGluR agonist 1-aminocyclopentane-1,3-carboxylic acid (ACPD; 0.5 or 1.0 μM/0.5 μL), or saline immediately following footshock training, and retention was tested 24 h later. In the visible- and hidden-platform water maze tasks, rats received post-training intracaudate infusions of ACPD (1.0 μM), MCPG (2.0 mM), or saline immediately following an eight-trial training session, followed by a retention test 24 h later. In the IA task, post-training infusion of ACPD (0.5 and 1.0 μM) or MCPG (1.0 and 2.0 mM) impaired retention. In the IA and visible-platform water maze tasks, post-training infusion of ACPD (1.0 μM), or MCPG (2.0 mM) impaired retention. In contrast, neither drug affected retention when administered post-training in the hidden-platform task, consistent with the hypothesized role of the dorsal striatum in stimulus-response habit formation. When intradorsal striatal injections were delayed 2 h post-training in the visible-platform water maze task, neither drug affected retention, indicating a time-dependent effect of the immediate post-training injections on memory consolidation. It is hypothesized that MCPG impaired memory via a blockade of postsynaptic dorsal striatal mGluR's, while the impairing effect of ACPD may have been caused by an influence of this agonist on presynaptic “autoreceptor” striatal mGluR populations. 相似文献
140.
Antonia J. Kaluza Franziska Weber Rolf van Dick Nina M. Junker 《Journal of applied social psychology》2021,51(4):404-424
Despite the increasing interest in leaders’ health-promoting behavior, the employees’ role in the effectiveness of such behavior and the mechanisms underlying how such leadership behavior affects their well-being have largely been ignored. Drawing on implicit leadership theories, we advance the health-oriented leadership literature by examining employees’ ideals, that is, their expectations regarding such leader behavior, as a moderating factor. We propose that higher expectations increase the association between actual health-oriented leader behavior and employee-rated leader-member relationships (LMX) and health-oriented behaviors by employees, which, in turn, positively relate to their well-being (here: exhaustion and work engagement). We tested our theoretical model in three studies, using a cross-sectional design (Study 1, N = 307), a two-wave time-lagged design (Study 2, N = 144) and an experimental design (Study 3, N = 173). We found that the effect of actual health-oriented leader behavior on LMX is contingent on employees’ ideal health-oriented leader behavior. Yet, for employees’ self-care behavior, the proposed moderation was only significant in Study 1. High expectations strengthened the relationship between actual health-oriented leader behavior with LMX and self-care behavior, which, in turn, were associated with less exhaustion and more work engagement (only LMX), supporting most of our mediation hypotheses. Our results highlight the pivotal role of employees’ expectations regarding leaders’ health support and help in building practical interventions with regard to leaders’ health promotion. 相似文献