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Psychophysiology, Ahead of Print. (Source: Psychophysiology)
Source: Psychophysiology - January 2, 2018 Category: Neurology Source Type: research
A latent state ‐trait analysis of interoceptive accuracy
Abstract
Interoceptive accuracy (IAc), that is, the ability to accurately perceive one's own bodily signals, is widely assumed to be a trait, although experimental manipulations such as stress may affect IAc. We used structural equation modeling to estimate the reliability of IAc, and the proportions of individual differences in IAc, explained by a trait and occasion‐specific effects of situation and person‐situation interactions. We assessed IAc in 59 healthy participants (40 women, MAge = 23.4 years) on three consecutive measurement occasions, approximately 1 week apart, in a rest and poststress condition, using ...
Source: Psychophysiology - January 1, 2018 Category: Neurology Authors: Martin F. Wittkamp, Katja Bertsch, Claus V ögele, André Schulz Tags: ORIGINAL ARTICLE Source Type: research
Manipulating the focus of attention in working memory: Evidence for a protection of multiple items against perceptual interference
Abstract
Visual working memory representations can be shielded from interference by selective attentional focusing using retroactive cues (retro‐cues). However, it is not clear how many representations can be effectively cued and which neural mechanisms provide the protection from distractors. To address these questions, we manipulated the number of attended items by means of a retro‐cue (one, two, or three items) and presented a distractor display during the retention of information in working memory. Analyses of the raw error and a mixture model revealed that a general performance benefit was only present when one it...
Source: Psychophysiology - January 1, 2018 Category: Neurology Authors: Anna Barth, Daniel Schneider Tags: ORIGINAL ARTICLE Source Type: research
What does the dot ‐probe task measure? A reverse correlation analysis of electrocortical activity
Abstract
The dot‐probe task is considered a gold standard for assessing the intrinsic attentive selection of one of two lateralized visual cues, measured by the response time to a subsequent, lateralized response probe. However, this task has recently been associated with poor reliability and conflicting results. To resolve these discrepancies, we tested the underlying assumption of the dot‐probe task—that fast probe responses index heightened cue selection—using an electrophysiological measure of selective attention. Specifically, we used a reverse correlation approach in combination with frequency‐tagged steady...
Source: Psychophysiology - January 1, 2018 Category: Neurology Authors: Nina N. Thigpen, L. Forest Gruss, Steven Garcia, David R. Herring, Andreas Keil Tags: ORIGINAL ARTICLE Source Type: research
Reference values for short ‐term resting‐state heart rate variability in healthy adults: Results from the Brazilian Longitudinal Study of Adult Health—ELSA‐Brasil study
Abstract
Heart rate variability (HRV) is a psychophysiological phenomenon with broad implications, providing an accessible index of vagal function, underpinning psychological constructs, including the capacity for social engagement and emotion regulation, and may predict future morbidity and mortality. However, the lack of reference values for short‐term HRV indices for participants of both sexes across the age spectrum is a limiting factor. This was the objective of the present study. Resting electrocardiographic records were obtained from 13,214 participants (both sexes, 35–74 years), and HRV indices in time and freq...
Source: Psychophysiology - January 1, 2018 Category: Neurology Authors: Eduardo Miranda Dantas, Andrew Haddon Kemp, Rodrigo Varej ão Andreão, Valdo José Dias da Silva, André Russowsky Brunoni, Rosangela Akemi Hoshi, Isabela Martins Bensenor, Paulo Andrade Lotufo, Antonio Luiz Pinho Ribeiro, José Geraldo Mill Tags: ORIGINAL ARTICLE Source Type: research
Emotional imagery and pupil diameter
In this study, we investigated pupil diameter changes during emotional imagery. Participants imagined scenes describing pleasant, unpleasant, or neutral events while pupil diameter was continuously recorded. Second by second changes in pupil diameter were analyzed to determine whether, and when, modulation of the pupil as a function of hedonic content is found. Results indicated a significant effect of hedonic content beginning shortly after script onset, with enhanced pupil diameter when imagining emotional (pleasant or unpleasant), compared to neutral, scenes. Pupil diameter during imagery covaried with rated emotional a...
Source: Psychophysiology - December 21, 2017 Category: Neurology Authors: Robert R. Henderson, Margaret M. Bradley, Peter J. Lang Tags: ORIGINAL ARTICLE Source Type: research
Emotional imagery and pupil diameter
Psychophysiology,Volume 55, Issue 6, June 2018. (Source: Psychophysiology)
Source: Psychophysiology - December 21, 2017 Category: Neurology Authors: Robert R.Henderson
,
Margaret M.Bradley
,
Peter J.Lang Source Type: research
Emotional imagery and pupil diameter
Psychophysiology, EarlyView. (Source: Psychophysiology)
Source: Psychophysiology - December 21, 2017 Category: Neurology Source Type: research
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Psychophysiology, Ahead of Print. (Source: Psychophysiology)
Source: Psychophysiology - December 21, 2017 Category: Neurology Source Type: research
How many trials does it take to get a significant ERP effect? It depends
Abstract
In designing an ERP study, researchers must choose how many trials to include, balancing the desire to maximize statistical power and the need to minimize the length of the recording session. Recent studies have attempted to quantify the minimum number of trials needed to obtain reliable measures for a variety of ERP components. However, these studies have largely ignored other variables that affect statistical power in ERP studies, including sample size and effect magnitude. The goal of the present study was to determine whether and how the number of trials, number of participants, and effect magnitude interact t...
Source: Psychophysiology - December 20, 2017 Category: Neurology Authors: Megan A. Boudewyn, Steven J. Luck, Jaclyn L. Farrens, Emily S. Kappenman Tags: ORIGINAL ARTICLE Source Type: research
Event ‐related potentials of attentional bias toward faces in the dot‐probe task: A systematic review
Psychophysiology,Volume 55, Issue 6, June 2018. (Source: Psychophysiology)
Source: Psychophysiology - December 20, 2017 Category: Neurology Authors: Robert D.Torrence
,
Lucy J.Troup Source Type: research
ERP correlates of processing the auditory consequences of own versus observed actions
Psychophysiology,Volume 55, Issue 6, June 2018. (Source: Psychophysiology)
Source: Psychophysiology - December 20, 2017 Category: Neurology Authors: MartaGhio
,
KatrinScharmach
,
ChristianBellebaum Source Type: research
How many trials does it take to get a significant ERP effect? It depends
Psychophysiology,Volume 55, Issue 6, June 2018. (Source: Psychophysiology)
Source: Psychophysiology - December 20, 2017 Category: Neurology Authors: Megan A.Boudewyn
,
Steven J.Luck
,
Jaclyn L.Farrens
,
Emily S.Kappenman Source Type: research
How many trials does it take to get a significant ERP effect? It depends
Psychophysiology, EarlyView. (Source: Psychophysiology)
Source: Psychophysiology - December 20, 2017 Category: Neurology Source Type: research
ERP correlates of processing the auditory consequences of own versus observed actions
Psychophysiology, EarlyView. (Source: Psychophysiology)
Source: Psychophysiology - December 20, 2017 Category: Neurology Source Type: research
