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141.
Lisanne M. Jenkins Jonathan P. Stange Alyssa Barba Sophie R. DelDonno Leah R. Kling Emily M. Briceño Sara L. Weisenbach K. Luan Phan Stewart A. Shankman Robert C. Welsh Scott A. Langenecker 《Cognitive, affective & behavioral neuroscience》2017,17(6):1242-1254
Emotion perception deficits could be due to disrupted connectivity of key nodes in the salience and emotion network (SEN), including the amygdala, subgenual anterior cingulate cortex (sgACC), and insula. We examined SEN resting-state (rs-)fMRI connectivity in rMDD in relation to Facial Emotion Perception Test (FEPT) performance. Fifty-two medication-free people ages 18 to 23 years participated. Twenty-seven had major depressive disorder (MDD) in remission (rMDD, 10 males), as MDD is associated with emotion perception deficits and alterations in rsfMRI. Twenty-five healthy controls (10 males) also participated. Participants completed the FEPT during fMRI, in addition to an 8-minute eyes-open resting-state scan. Seed regions of interest were defined in the amygdala, anterior insula and sgACC. Multiple regression analyses co-varied diagnostic group, sex and movement parameters. Emotion perception accuracy was positively associated with connectivity between amygdala seeds and regions primarily in the SEN and cognitive control network (CCN), and also the default mode network (DMN). Accuracy was also positively associated with connectivity between the sgACC seeds and other SEN regions, and the DMN, particularly for the right sgACC. Connectivity negatively associated with emotion perception was mostly with regions outside of these three networks, other than the left insula and part of the DMN. This study is the first to our knowledge to demonstrate relationships between facial emotion processing and resting-state connectivity with SEN nodes and between SEN nodes and regions located within other neural networks. 相似文献
142.
143.
Carmen Moret‐Tatay Lenin‐Guillermo Lemus‐Zúñiga Diana Abad Tortosa Daniel Gamermann Andrea Vázquez‐martínez Esperanza Navarro‐Pardo J. Alberto Conejero 《Scandinavian journal of psychology》2017,58(4):304-311
The reaction time has been described as a measure of perception, decision making, and other cognitive processes. The aim of this work is to examine age‐related changes in executive functions in terms of demand load under varying presentation times. Two tasks were employed where a signal detection and a discrimination task were performed by young and older university students. Furthermore, a characterization of the response time distribution by an ex‐Gaussian fit was carried out. The results indicated that the older participants were slower than the younger ones in signal detection and discrimination. Moreover, the differences between both processes for the older participants were higher, and they also showed a higher distribution average except for the lower and higher presentation time. The results suggest a general slowdown in both tasks for age under different presentation times, except for the cases where presentation times were lower and higher. Moreover, if these parameters are understood to be a reflection of executive functions, these findings are consistent with the common view that age‐related cognitive deficits show a decline in this function. 相似文献
144.
Ryan Francis O. Cayubit Kevin M. Rebolledo Romulo Gabriel A. Kintanar Angelissa G. Pastores Alen Josef A. Santiago Paula Bianca V. Valles 《Psychological studies》2017,62(4):386-394
In computer security parlance, a hacker is an individual who actively seeks and takes advantage of flaws and weaknesses of a computer network or system. In recent years, one has seen the rise of hacking, often as a form of protest and retaliation for reasons ranging from political to social, but the question remains as to what really motivates an individual to hack a computer network? Using the Q-method, the study aimed to develop a classification of the motivation of computer hackers. This was done with the use of 43 participants who were subjected to preliminary interviews and the sorting method. The statements from the interviews were categorized that resulted in seven conceptual themes, namely social-positive, social-negative, intellectual gain, self-satisfaction, economic rewards, technological-positive and technological-negative. From these themes, three distinct profiles emerged and were used to describe the motivation of hackers. 相似文献
145.
Juanma de la Fuente Daniel Casasanto Jose Isidro Martínez‐Cascales Julio Santiago 《Cognitive Science》2017,41(5):1350-1360
The concepts of “good” and “bad” are associated with right and left space. Individuals tend to associate good things with the side of their dominant hand, where they experience greater motor fluency, and bad things with their nondominant side. This mapping has been shown to be flexible: Changing the relative fluency of the hands, or even observing a change in someone else's motor fluency, results in a reversal of the conceptual mapping, such that good things become associated with the side of the nondominant hand. Yet, based on prior studies, it is unclear whether space–valence associations were determined by the experience of fluent versus disfluent actions, or by the mere expectation of fluency. Here, we tested the role of expected fluency by removing motor execution and perceptual feedback altogether. Participants were asked to imagine themselves performing a psychomotor task with one of their hands impaired, after which their implicit space–valence mapping was measured. After imagining that their right hand was impaired, right‐handed participants showed the “good is left” association typical of left‐handers. Motor imagery can change people's implicit associations between space and emotional valence. Although asymmetric motor experience may be necessary to establish body‐specific associations between space and valence initially, neither motoric nor perceptual experience is needed to change these associations subsequently. The mere expectation of fluent versus disfluenct actions can drive fluency‐based effects on people's implicit spatialization of “good” and “bad.” These results suggest a reconsideration of the mechanisms and boundary conditions of fluency effects. 相似文献
146.
Juan Manuel Falomir‐Pichastor Daniel Muoz‐Rojas Federica Invernizzi Gabriel Mugny 《European journal of social psychology》2004,34(2):135-153
Within the framework of an intergroup relations paradigm, three studies analysed the role of in‐group threat in intergroup discrimination and the influence of in‐group norms on intergroup discrimination. The first study showed that perceived socio‐economic threat underlies Swiss nationals' prejudice and discrimination toward foreigners in Switzerland. The second and third studies experimentally tested the hypotheses, first, that variations in perception of in‐group threat will produce change in initial discrimination, and, second, that the influence of an in‐group norm (pro‐ vs. anti‐ discriminatory) is moderated by the perception of in‐group threat. In support of these predictions, results of both studies indicated that discrimination was reduced when perceived in‐group threat was low. However, the anti‐discriminatory in‐group norm reduced discrimination only when perceived in‐group threat was low. No influence was observed for the pro‐discriminatory in‐group norm. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
147.
Orrantia J Rodríguez L Múñez D Vicente S 《Quarterly journal of experimental psychology (2006)》2012,65(4):725-738
Studies of elementary calculation have shown that adults solve basic subtraction problems faster with problems presented in addition format (e.g., 6 ± =?13) than in standard subtraction format (e.g., 13 - 6?=?). Therefore, it is considered that adults solve subtraction problems by reference to the inverse operation (e.g., for 13 - 6?=?7, "I know that 13 is 6?+?7") because presenting the subtraction problem in addition format does not require the mental rearrangement of the problem elements into the addition format. In two experiments, we examine whether adults' use of addition to solve subtractions is modulated by the arrangement of minuend and subtrahend, regardless of format. To this end, we used arithmetic word problems since single-digit problems in subtraction format would not allow the subtrahend to appear before the minuend. In Experiment 1, subtractions were presented by arranging minuend and subtrahend according to previous research. In Experiment 2, operands were reversed. The overall results showed that participants benefited from word problems where the subtrahend appears before the minuend, including subtractions in standard subtraction format. These findings add to a growing body of literature that emphasizes the role of inverse reference in adults' performance on subtractions. 相似文献
148.
Peña M Bion RA Nespor M 《Journal of experimental psychology. Learning, memory, and cognition》2011,37(5):1199-1208
The iambic-trochaic law has been proposed to account for the grouping of auditory stimuli: Sequences of sounds that differ only in duration are grouped as iambs (i.e., the most prominent element marks the end of a sequence of sounds), and sequences that differ only in pitch or intensity are grouped as trochees (i.e., the most prominent element marks the beginning of a sequence). In 3 experiments, comprising a familiarization and a test phase, we investigated whether a similar grouping principle is also present in the visual modality. During familiarization, sequences of visual stimuli were repeatedly presented to participants, who were asked to memorize their order of presentation. In the test phase, participants were better at remembering fragments of the familiarization sequences that were consistent with the iambic-trochaic law. Thus, they were better at remembering fragments that had the element with longer duration in final position (iambs) and fragments that had the element with either higher temporal frequency or higher intensity in initial position (trochees), as compared with fragments that were inconsistent with the iambic-trochaic law or that never occurred during familiarization. 相似文献
149.
150.
Santiago Echeverri 《European Journal of Philosophy》2011,19(3):357-386
Abstract: In Mind and World, McDowell conceives of the content of perceptual experiences as conceptual. This picture is supposed to provide a therapy for skepticism, by showing that empirical thinking is objectively and normatively constrained. The paper offers a reconstruction of McDowell's view and shows that the therapy fails. This claim is based on three arguments: 1) the identity conception of truth he exploits is unable to sustain the idea that perception‐judgment transitions are normally truth conducing; 2) it could be plausible only from an externalist point of view that is in tension with the view of normativity that motivates conceptualism; 3) the identity conception of truth is incompatible with McDowell's recent version of conceptualism in terms of ‘non‐propositional intuitive contents’. 相似文献