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71.
Phenomenology and the Cognitive Sciences - Brain imaging technologies are increasingly used to find networks and brain regions that are specific to the functional realization of particular aspects... 相似文献
72.
The accuracy of simple actions is swiftly determined through specific monitoring brain systems. However, it remains unclear whether this evaluation is accompanied by a rapid and compatible emotional appraisal of the action that allows to mark incorrect actions as negative/bad and conversely correct actions as positive/good. In this study, we used a new method to decode the affective value of simple actions generated by participants during a standard Go/noGo task. Immediately after each Go/noGo action, participants responded to the valence of either a positive or a negative word. Results showed that False Alarms performed during the Go/noGo task led to a faster evaluative categorization of negative words relative to positive words. This action-word evaluative priming effect occurred when the interval between these two events was set to either 300 or 600ms, but not 1000ms. Finally, higher levels of trait anxiety were associated with a reduction of the evaluative priming effect. Our results suggest that simple actions are rapidly evaluated as positive or negative depending on the automatic monitoring of their perceived accuracy. 相似文献
73.
Marien H Custers R Hassin RR Aarts H 《Journal of personality and social psychology》2012,103(3):399-415
Building on research on unconscious human goal pursuit and the dynamic nature of our mental and physical world, this study examined the idea that an unconsciously activated goal hijacks executive control for its own attainment. This "hijacking" of the executive function by an unconscious goal should be evidenced by impaired performance on an unrelated task relying on executive control. The results of 6 experiments show that subliminal activation of a socializing goal, or an idiosyncratic personal goal, or an academic goal, harmed participants' performance on an executive function task, such as inhibition of prepotent responses and detection of text errors during reading. These effects were unique to executive control, were similar when the goal was activated consciously, and were independent of task motivation and perceived inter-goal relatedness between the primed goal and task goal. Furthermore, an unconscious goal occupied executive control to advance itself more strongly when the goal had personal value. Implications for theory and research on unconscious goal pursuit and the executive function are discussed. (PsycINFO Database Record (c) 2012 APA, all rights reserved). 相似文献
74.
Following Birkhoff and von Neumann, quantum logic has traditionally been based on the lattice of closed linear subspaces of some Hilbert space, or, more generally, on the lattice of projections in a von Neumann algebra A. Unfortunately, the logical interpretation of these lattices is impaired by their nondistributivity and by various other problems. We show that a possible resolution of these difficulties, suggested by the ideas of Bohr, emerges if instead of single projections one considers elementary propositions to be families of projections indexed by a partially ordered set ${\mathcal{C}(A)}$ of appropriate commutative subalgebras of A. In fact, to achieve both maximal generality and ease of use within topos theory, we assume that A is a so-called Rickart C*-algebra and that ${\mathcal{C}(A)}$ consists of all unital commutative Rickart C*-subalgebras of A. Such families of projections form a Heyting algebra in a natural way, so that the associated propositional logic is intuitionistic: distributivity is recovered at the expense of the law of the excluded middle. Subsequently, generalizing an earlier computation for n × n matrices, we prove that the Heyting algebra thus associated to A arises as a basis for the internal Gelfand spectrum (in the sense of Banaschewski?CMulvey) of the ??Bohrification?? ${\underline A}$ of A, which is a commutative Rickart C*-algebra in the topos of functors from ${\mathcal{C}A}$ to the category of sets. We explain the relationship of this construction to partial Boolean algebras and Bruns?CLakser completions. Finally, we establish a connection between probability measures on the lattice of projections on a Hilbert space H and probability valuations on the internal Gelfand spectrum of ${\underline A}$ for A?=?B(H). 相似文献
75.
76.
The conscious awareness of voluntary action is associated with systematic changes in time perception: The interval between actions and outcomes is experienced as compressed in time. Although this temporal binding is thought to result from voluntary movement and provides a window to the sense of agency, recent studies challenge this idea by demonstrating binding in involuntary movement. We offer a potential account for these findings by proposing that binding between involuntary actions and effects can occur when self-causation is implied. Participants made temporal judgements concerning a key press and a tone, while they learned to consider themselves as the cause of the effect or not. Results showed that implied self-causation (vs. no implied self-causation) increased temporal binding. Since intrinsic motor cues of movement were absent, these results suggest that sensory evidence about the key press caused binding in retrospect and in line with the participant's sense of being an agent. 相似文献
77.
Anxiety has profound influences on a wide range of cognitive processes, including action monitoring. Eventrelated brain potential
(ERP) studies have shown that anxiety can boost early error detection mechanisms, as reflected by an enhanced error-related
negativity (ERN) following errors in high-anxious, as compared with low-anxious, participants. This observation is consistent
with the assumption of a gain control mechanism exerted by anxiety onto error-related brain responses within the dorsal anterior
cingulate cortex (ACC). However, whether anxiety simply enhances or, rather, alters early error detection mechanisms remains
unsolved. In this study, we compared the performance of low-versus high-trait-anxious participants during a go/no-go task
while high-density EEG was recorded. The two groups showed comparable behavioral performance, although levels of state anxiety
increased following the task for high-anxious participants only. ERP results confirmed that the ERN/Ne to errors was enhanced
for high-anxious, relative to low-anxious, participants. However, complementary topographic analyses revealed that the scalp
map of the ERN/Ne was not identical between the two groups, suggesting that anxiety did not merely increase early error detection
mechanisms, but also led to a qualitative change in the early appraisal of errors. Inverse solution results confirmed a shift
within the ACC for the localization of neural generators underlying the ERN/Ne scalp map in high-anxious participants, corroborating
the assumption of an early effect of anxiety on early error-monitoring functions. These results shed new light on the dynamic
interplay between anxiety and error-monitoring functions in the human brain. 相似文献
78.
Mirjam ter Beek Paul van den Eshof Bas Mali 《Journal of Investigative Psychology & Offender Profiling》2010,7(1):31-47
A sample of stranger rape offences (n = 271) registered in the Dutch Violence Crime Linkage Analysis System database in the Netherlands between 1997 and 2007 was studied with the objective of developing statistical models, which give an indication of the probability of basic offender characteristics. Observable crime characteristics concerning the modus operandi, interaction between the offender and the victim, violence, precautionary measures, and sexual behaviours were selected in the dataset. Offender characteristics were selected based on their usefulness for the police organisation in narrowing the scope of a criminal investigation. Spatial behaviour, criminal history, and living situation of the offender were selected. From the predictive models, four out of five achieved a correct rate of over 70%, and all models predicted better than the best guess method. The proposed models for distance and prior convictions for violence seem particularly promising. Both these models show an improvement of correctly predicted offender characteristics of more than 20 percentile points compared with that which could have been estimated based on the average in the total sample. The predictive value of the models needs to be tested further with ‘new offences’, which were not used to construct the model. In general, the current study supports the finding that crime characteristics can be used to get an indication of the probability of certain offender characteristics. Nevertheless, for an understanding of the relationship between the crime characteristics and offender characteristics, a further development of a theoretical framework is urgently necessary. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献
79.
Francisco Bas Ramallo 《Estudios de Psicología》2013,34(29-30):143-174
RESUMENEn este artículo Bas examina el concepto automanifestación (en adelante, AM) y desarrolla sus implicaciones terapéuticas. El autor comenta aquellas terapias cognitivo-conductuales que han considerado las AM de un modo central en la interpretación de los problemas y que han confeccionado instrumentos específicos de intervención sobre ellas. En este repaso se hace especial mención del fenómeno de la depresión, aunque también se señalan otras áreas de disfunción. Posteriormente presenta los métodos más utilizados para evaluar las AM y finaliza con una revisión más amplia de un método muy extendido para modificar un tipo de AM especial: las autoinstrucciones, según lo han desarrollado Meichenbaum y otros y orientado hacia la problemática infantil. 相似文献
80.
Using a new method, we examined whether incidental perception of need-rewarding (positive) objects unintentionally prepares motor action. Participants who varied in their level of need for water were presented with glasses of water (and control objects) that were accompanied by go and no-go cues that required a response (key-press) or withholding a response. Importantly, if need-rewarding objects unintentionally prepare action, presentation of no-go cues should lead to motor inhibition of these prepared motor impulses. Consistent with this hypothesis, results showed that participants relatively high in need for water (and hence, who perceive water as a rewarding, positive object) were slower to react to a successive action probe after withholding a response during perception of water than during perception of the control object, suggesting motor inhibition of unintentionally prepared motor impulses. We propose that incidental perception of need-rewarding objects unintentionally potentiates preparation of motor action to these objects. 相似文献