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https://www.selleckchem.com/products/Sodium-butyrate.html This pattern of data directly describes the BCE, and represents a potential alternative mechanism that does not require any response crosstalk, and would reinforce a stricter view of the response selection bottleneck model, if true. Over two experiments, we demonstrate that while the BCE is sensitive to ISPC-like effects based on Task1 conflict contingencies, the BCE is insensitive to relationships between particular pairs of stimuli and associated conflict. While ISPC effects can modulate the BCE, they do not generate the BCE. These findings reinforce the current Task2 parallel response activation account of the BCE.Anxiety has consistently been found to potentiate attentional capture by physically salient stimuli, which could be due to enhanced distractor processing, impaired goal-directed attention, or both. At the same time, a recent study demonstrated that a threat manipulation reduces attentional capture by reward-associated stimuli, suggesting that anxiety does not increase distractibility or, otherwise, interfere with the control of attention generally. Here, we experimentally induced anxiety via threat-of-shock in the adaptive choice visual search task to examine whether the experience of threat influences goal-directed attentional control. Participants chose to search through one of two task-relevant colors on each trial, where searching through the less abundant color would be optimal for maximizing performance. Performance was evaluated with and without the threat of unpredictable electric shock. Under threat, participants were more optimal in their visual search and missed fewer targets. Performance improvements were demonstrated on trials that the optimal target color switched, demonstrating that threat is beneficial in adapting to changing attentional demands. Our findings demonstrate that threat can facilitate the efficiency of goal-directed attentional control and are at odds with an antagoni

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