The effects of transcranial direct current stimulation (tDCS) on multitasking performance and oculometrics

Multitasking is the ability to perform more than one task simultaneously. The need to multitask is common in many industries especially within the military with tasks such as air traffic controllers, cyber defense operators and image analysts. However, as the time on task increases, information throughput can become overwhelming resulting in a performance decrement. Through task prioritizing, the operator is able to maintain performance on specific subtasks in which they selected as high importance while other subtasks experience a decrement. The objective of this study was to evaluate the effects of transcranial direct current stimulation (tDCS) applied to the left dorsolateral prefrontal cortex (ldLPFC) on information processing capabilities to improve individual and overall multitasking performance while performing the multi-attribute task battery (MATB). Two groups of 8 participants each received either 2 mA of anodal or sham tDCS while performing MATB. In addition, eye tracking was implemented to record eye movement patterns. In doing so, we were able to determine how much time the operator allocated to each of the subtasks within MATB and how their task priorities changed as workload demands increased. The findings provided evidence that 2 mA of anodal tDCS during MATB significantly improved overall information throughput compared to the sham group. With respect to the individual subtasks, communication and system monitoring displayed the greatest enhancement with anodal tDCS. Our data suggests that tDCS could be a useful tool to enhance information processing capabilities during a multitasking paradigm resulting in improved processing capabilities and information throughput.     

Dissociable learning processes,associative theory,and testimonial reviews: A comment on Smith and Church (2018)

Psychonomic Bulletin & Review - Smith and Church (Psychonomic Bulletin & Review, 25, 1565–1584 2018) present a “testimonial” review of dissociable learning processes...     

Perseverative cognition,distracted communication,and well‐being in everyday social interaction

This study examined how rumination and worry experienced within varying contexts of everyday life are associated with current‐moment and cross‐moment indicators of subjective well‐being. We also investigated if, in the context of social interaction, distracted communication uniquely predicts subjective well‐being and mediates the link between perseverative cognition and well‐being. Using experience sampling, we found that the effects of rumination and worry on subjective well‐being were social‐context dependent. Rumination experienced alone, relative to during interaction, was a stronger positive predictor of current and later‐in‐the‐day loneliness. In contrast, worry experienced alone, but not during interaction, negatively predicted later loneliness. Distracted communication accounted for unique variance in current affective well‐being and current and later loneliness, but its role as a mediator was uncertain.     

‘Would it not be better to get someone out workin?’: ‘Safe prejudice’ against Polish workers

One recurring criticism of immigrant groups is their alleged failure to be employed and contribute to the host society. Here we examine how speakers mobilise a criticism that has attracted less research attention: that through their economic activity immigrant groups usurp others’ employment entitlements. Discourse analysis of data from seven focus group discussions about pre-Brexit Polish immigration into the UK, involving 31 UK nationals, shows that participants accomplish exclusionary outcomes in two divergent ways. The first attributes qualities to Polish workers but also makes explicit the consequences of these attributions for UK nationals, rendering speakers’ investment in such claims visible. The second relies on the production of category pairs, within which claims can be made for the category that excludes Polish workers. This use of categories comprises ‘safe prejudice’, a form of prejudice not previously identified but which is less open to challenge than other forms of prejudiced talk.