Top 2 Psyarxiv Papers Today in Neuroscience


2.008 Mikeys
#1. Dissociable influences of implicit temporal expectation on attentional performance and mind wandering
Stijn Massar, Jia-Hou Poh, Julian Lim, Michael W.L. Chee
Mind wandering at critical moments during a cognitive task degrades performance. At other moments, mind wandering could serve to conserve task-relevant resources, allowing a brief mental respite. Recent research has shown that, if target timing is predictable, mind wandering episodes coincide with moments of low target likelihood. Conversely, mind wandering can be avoided at moments when targets are expected. In the current study, we tested whether mind wandering can be guided by implicit temporal expectations when target timing is less predictable. In two experiments (Experiment 1: N = 37, Experiment 2: N = 61), participants performed a sustained attention task in which target events were preceded by a variable pre-target interval (foreperiod). As time passes over the foreperiod duration, implicit target expectation increases, given that it has not yet appeared. In Experiment 1, all foreperiod durations were equally probable (uniform distribution: 2-10 seconds). This resulted in faster responses when targets were preceded by long...
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JiaHou_Poh: Temporal expectations can develop rapidly even when target-occurrence is unpredictable. This results in slower RT during periods of low expectation. Is this related to mind wandering? We address this in our new preprint led by @StijnMassar @CCN_DukeNUS! https://t.co/tS6MwM9pVR https://t.co/37ZRZpcMO0
StijnMassar: My first steps to open science. #PsyArXiv #preprint Dissociable influences of implicit temporal expectation on attentional performance and mind wandering https://t.co/hn6VDkzybJ With @JiaHou_Poh @julianlimzq @MRSleepDep
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Authors: 4
Total Words: 8452
Unqiue Words: 2456

1.997 Mikeys
#2. Measuring inhibitory control mechanisms: Delta plots revisited
thibault gajdos, Mathieu Servant, Thierry Hasbroucq, Karen Davranche
Delta plots are a graphical representation of the time course of an experimental effect. They are constructed by plotting the difference between equivalent response time (RT) quantiles in each condition against their mean. Delta plots are widely used in cognitive control research to evaluate the efficiency of inhibitory control mechanisms in tasks involving some kind of conflict. This popularity stems from the activation-suppression model that relates inhibition strength to the last segment of the delta plot. We demonstrate that this theoretical link is flawed, casting doubt on the validity of inferences made by previous research. We propose an alternative method to quantify inhibition strength, within the framework of the activation-suppression model. We also elaborate an alternative model-free method, grounded on a phenomenological approach of inhibitory control mechanisms. Two inhibition indices are introduced, for which we provide an axiomatic foundation.
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Authors: 4
Total Words: 7525
Unqiue Words: 2195

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