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31.
The aftereffects of error and conflict (i.e., stimulus or response incongruency) have been extensively studied in the cognitive control literature. Each has been characterized by its own behavioral signature on the following trial. Conflict leads to a reduced congruency effect (Gratton effect), whereas an error leads to increased response time (post-error slowing). The reason for this dissociation has remained unclear. Here, we show that post-conflict slowing is not typically observed because it is masked by the processing of the irrelevant stimulus dimension. We demonstrate that post-conflict slowing does occur when tested in pure trials where helpful or detrimental impacts from irrelevant stimulus dimensions are removed (i.e., univalent stimuli). 相似文献
32.
When a target requires different responses to a relevant and to an irrelevant task in a task-switching paradigm, there is
response conflict. This target-induced response conflict was combined with conflict caused by a subliminally presented prime
presented prior to the target. We found that target-related conflict reduced prime-induced conflict effects within the same
trial. However, target-related conflict modified prime-related conflict effects according to the irrelevant stimulus-response
(S-R) rule, but not according to the relevant S-R rule. Moreover, trial-to-trial modulations of the target congruency effect
were observed in task repetition trials, but not in task switch trials. These results indicate that conflict resolution mechanisms,
at least under the present circumstances, operate in a strictly task-specific manner. 相似文献
33.
Ideomotor theory states that motor responses are activated by an anticipation of their sensory effects. We assumed that anticipated effects would produce response-effect (R-E) compatibility when there is dimensional overlap of effects and responses. In a four-choice task, visual digit stimuli called for verbal responses (color names). Each response produced a written response-effect on the screen. In different groups, the response-effect was a colored color word (e.g., blue in blue), a white color word, or a colored nonword (Xs in blue). In different blocks, the predictable effects were either incompatible (e.g., response "blue" --> effect: green) or compatible with the response. We found faster responses with compatible than with incompatible R-E mappings. The compatibility effect was strongest with colored words, intermediate with white words, and smallest with colored nonwords. We conclude that effect anticipation influences response selection on both a perceptual level (related to the word's color) and a conceptual level (related to the word's meaning). 相似文献
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Roland Pfister Thomas Dolk Wolfgang Prinz Wilfried Kunde 《Psychonomic bulletin & review》2014,21(3):817-822
When performing jointly on a task, human agents are assumed to represent their coactor’s share of this task, and research in various joint action paradigms has focused on representing the coactor’s stimulus–response assignments. Here we show that the response–effect (R–E) contingencies exploited by a coactor also affect performance, and thus might be represented as if they were used by oneself. Participants performed an R–E compatibility task, with keypresses producing spatially compatible or incompatible action effects. We did not observe any R–E compatibility effects when the task was performed in isolation (individual go–no-go). By contrast, small but reliable R–E compatibility effects emerged when the same task was performed in a joint setting. These results indicate that the knowledge of a coactor’s R–E contingencies can influence whether self-produced action effects are used for one’s own motor control. 相似文献
36.
Task-irrelevant features of a stimulus can disturb performance on a given task, and this can occur for cognitive reasons such as irrelevant stimulus position, and affective reasons such as high stimulus valence. The human brain adapts to such disturbances in order to ensure successful task performance. Adaptations can occur in a transient manner in response to recent events, and they can also be sustained to account for overall probabilities of disturbances. Here, we study the mutual interplay between affective and cognitive task disturbances under conditions of sustained conflict adaptation. More precisely, we examined the trajectory of finger movements in a speeded classification task and investigated whether adaptation to a high probability of spatial disturbances transfers to the impact of affective disturbances (Experiment 1) and whether adaptation to a high probability of affective disturbances transfers to the impact of spatial disturbances (Experiment 2). Our observations point towards an asymmetric transfer from adaptation to affective onto the processing of cognitive disturbances, but not the other way around. 相似文献
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Wilfried Apfalter 《Theology & Science》2013,11(2):163-174
In this short article I argue that neurotheology should be conceived and practiced within a theological framework. Taking the case of Catholic theology as an example, five proposals are provided that offer a glimpse and, in my estimation, a realistic account of a (future) Catholic neurotheology. I identify two possible modes of how to practice Catholic neurotheology and conclude that any Catholic neurotheology that attempts to be practiced in accordance with these five proposals will be extremely challenging for Catholic theology. 相似文献
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