Inhibitory control in prospective memory: An event related potential comparison of task-switch and dual task processing

Abstract Early adverse experiences are believed to have a profound effect on inhibitory control and the underlying neural regions. In the current study, behavioral and event-related potential (ERP) data were collected during a go/no-go task from adolescents who were involved with the child welfare system due to child maltreatment (n = 129) and low-income, nonmaltreated adolescents (n = 102). The nonmaltreated adolescents were more accurate than the maltreated adolescents on the go/no-go task, particularly on the no-go trials. Paralleling the results with typically developing populations, the nonmaltreated adolescents displayed a more pronounced amplitude of the N2 during the no-go trials than during the go trials. However, the maltreated adolescents demonstrated a more pronounced amplitude of the N2 during the go trials than during the no-go trials. Furthermore, while the groups did not differ during the go trials, the nonmaltreated adolescents displayed a more negative amplitude of the N2 than the maltreated adolescents during no-go trials. In contrast, there was not a significant group difference in amplitude of the P3. Taken together, these results provide evidence that the early adverse experiences encountered by maltreated populations impact inhibitory control and the underlying neural activity in early adolescence.

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The impact of exercise intensity on neurophysiological indices of food-related inhibitory control and cognitive control: A randomized crossover event-related potential (ERP) study

NeuroImage ◽

10.1016/j.neuroimage.2021.118162 ◽

2021 ◽

pp. 118162

Author(s):

Bruce W. Bailey ◽

Alexandra M. Muir ◽

Ciera L. Bartholomew ◽

William F. Christensen ◽

Kaylie A. Carbine ◽

...

Keyword(s):

Cognitive Control ◽

Inhibitory Control ◽

Exercise Intensity ◽

Event Related Potential ◽

Crossover Event ◽

The Impact

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Learning of across- and within-task contingencies modulates partial-repetition costs in dual-tasking

Psychological Research ◽

10.1007/s00426-021-01518-1 ◽

2021 ◽

Author(s):

Lasse Pelzer ◽

Christoph Naefgen ◽

Robert Gaschler ◽

Hilde Haider

Keyword(s):

Dual Task ◽

Discrimination Task ◽

Experimental Approach ◽

Feature Binding ◽

Dual Tasking ◽

Single Task ◽

Task Set ◽

Task Processing ◽

Tone Discrimination ◽

Task Sets

AbstractDual-task costs might result from confusions on the task-set level as both tasks are not represented as distinct task-sets, but rather being integrated into a single task-set. This suggests that events in the two tasks are stored and retrieved together as an integrated memory episode. In a series of three experiments, we tested for such integrated task processing and whether it can be modulated by regularities between the stimuli of the two tasks (across-task contingencies) or by sequential regularities within one of the tasks (within-task contingencies). Building on the experimental approach of feature binding in action control, we tested whether the participants in a dual-tasking experiment will show partial-repetition costs: they should be slower when only the stimulus in one of the two tasks is repeated from Trial n − 1 to Trial n than when the stimuli in both tasks repeat. In all three experiments, the participants processed a visual-manual and an auditory-vocal tone-discrimination task which were always presented concurrently. In Experiment 1, we show that retrieval of Trial n − 1 episodes is stable across practice if the stimulus material is drawn randomly. Across-task contingencies (Experiment 2) and sequential regularities within a task (Experiment 3) can compete with n − 1-based retrieval leading to a reduction of partial-repetition costs with practice. Overall the results suggest that participants do not separate the processing of the two tasks, yet, within-task contingencies might reduce integrated task processing.

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