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https://www.readbyqxmd.com/read/28643206/right-visual-field-advantage-in-the-attentional-blink-asymmetry-in-attentional-gating-across-time-and-space
#1
Dafna Bergerbest, Orit Shilkrot, Michal Joseph, Moti Salti
When two targets are presented in a rapid serial visual presentation (RSVP), recognition of the second target (T2) is usually reduced when presented 150-500 ms after the first target, demonstrating an attentional blink (AB). Previous studies have shown a left visual-field (LVF) advantage in T2 recognition, when T2 was embedded in one of two streams, demanding top-down attention for its recognition. Here, we explored the impact of bottom-up saliency on spatial asymmetry in the AB. When T2 was spatially shifted outside from the RSVP, creating an abrupt onset of T2, right T2s showed a right visual-field (RVF) advantage...
June 22, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/28641813/sensors-and-bioassays-powered-by-upconverting-materials
#2
REVIEW
Diego Mendez-Gonzalez, Enrique Lopez-Cabarcos, Jorge Rubio-Retama, Marco Laurenti
In recent years, considerable efforts have been done to better understand the peculiar emission properties of upconverting materials due to their widespread applications in different and important technological fields such as upconversion-based photoactivated cancer therapies, photoactivated drug-delivery, magnetic resonance imaging contrast agents, bioimaging. However, one of the most promising applications of upconverting materials concerns the field of sensing, due to their unique emission properties. In fact, the minimal autofluorescence, blinking, photo-bleaching, and high photostability makes them an excellent alternative to organic dyes or quantum dots...
June 10, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28604795/individual-differences-in-dual-target-rsvp-task-performance-relate-to-entrainment-but-not-to-individual-alpha-frequency
#3
Cornelia Kranczioch
The attentional blink (AB) paradigm is widely used to study visual temporal attention. An important feature of the standard AB paradigm is repetitive visual stimulation, more precisely the rapid serial visual presentation (RSVP) of numerous distracters interspersed with two targets. The RSVP stream is likely to result in entrainment of visual cortex, which has been suggested to negatively affect target identification in the AB paradigm. The present EEG study tested this idea with an inter-individual differences approach...
2017: PloS One
https://www.readbyqxmd.com/read/28602816/neurobiological-correlates-of-impulsivity-in-healthy-adults-lower-prefrontal-gray-matter-volume-and-spontaneous-eye-blink-rate-but-greater-resting-state-functional-connectivity-in-basal-ganglia-thalamo-cortical-circuitry
#4
Cole Korponay, Daniela Dentico, Tammi Kral, Martina Ly, Ayla Kruis, Robin Goldman, Antoine Lutz, Richard J Davidson
Studies consistently implicate aberrance of the brain's reward-processing and decision-making networks in disorders featuring high levels of impulsivity, such as attention-deficit hyperactivity disorder, substance use disorder, and psychopathy. However, less is known about the neurobiological determinants of individual differences in impulsivity in the general population. In this study of 105 healthy adults, we examined relationships between impulsivity and three neurobiological metrics - gray matter volume, resting-state functional connectivity, and spontaneous eye-blink rate, a physiological indicator of central dopaminergic activity...
June 8, 2017: NeuroImage
https://www.readbyqxmd.com/read/28557492/decision-making-training-reduces-the-attentional-blink
#5
Ashika Verghese, Jason B Mattingley, K G Garner, Paul E Dux
Practice or training on a particular task often yields gains for the trained task; however, the extent to which these benefits generalize to other stimuli/tasks is contentious. It has been suggested that behavioral decision-making/response selection training may enhance temporal visual attention, as measured using the attentional blink (AB) paradigm. Here, we show that AB can indeed be reduced through response selection training, which requires repeatedly performing a speeded decision-making task. Training gains garnered by this approach transferred to distinct AB measures, but not to unrelated measures of visual search and multitasking ability...
May 29, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28495634/network-targeted-cerebellar-transcranial-magnetic-stimulation-improves-attentional-control
#6
Michael Esterman, Michelle Thai, Hidefusa Okabe, Joseph DeGutis, Elyana Saad, Simon E Laganiere, Mark A Halko
Developing non-invasive brain stimulation interventions to improve attentional control is extremely relevant to a variety of neurological and psychiatric populations, yet few studies have identified reliable biomarkers that can be readily modified to improve attentional control. One potential biomarker of attention is functional connectivity in the core cortical network supporting attention - the dorsal attention network (DAN). We used a network-targeted cerebellar transcranial magnetic stimulation (TMS) procedure, intended to enhance cortical functional connectivity in the DAN...
May 8, 2017: NeuroImage
https://www.readbyqxmd.com/read/28494384/attentional-blink-to-alcohol-cues-in-binge-drinkers-versus-non-binge-drinkers
#7
Francesco M DePalma, Natalie Ceballos, Reiko Graham
Previous studies have shown alcohol-related attentional biases in social drinkers; however, the temporal dynamics of these biases are not well understood. The current study examined this issue in 94 participants (27 male) categorized as binge drinkers (BD) or non-binge drinkers (NBD). Two versions of an alcohol-related attentional blink (AB) paradigm were used: one with words and one with images. It was predicted that BDs (versus NBDs) would exhibit reduced AB for alcohol cues, which would be enhanced for the pictorial version of the task (versus words)...
April 29, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28467449/looking-at-reality-versus-watching-screens-media-professionalization-effects-on-the-spontaneous-eyeblink-rate
#8
Celia Andreu-Sánchez, Miguel Ángel Martín-Pascual, Agnès Gruart, José María Delgado-García
This article explores whether there are differences in visual perception of narrative between theatrical performances and screens, and whether media professionalization affects visual perception. We created a live theatrical stimulus and three audio-visual stimuli (each one with a different video editing style) having the same narrative, and displayed them randomly to participants (20 media professionals and 20 non-media professionals). For media professionals, watching movies on screens evoked a significantly lower spontaneous blink rate (SBR) than looking at theatrical performances...
2017: PloS One
https://www.readbyqxmd.com/read/28453595/-eyelid-retraction-of-neurologic-origin-report-of-three-cases
#9
Luis Cartier R, Jorge Guzmán S, Renzo Pasquali F
Eyelid retraction, has received limited attention and it has passively been interpreted as the result of an overactive levator palpebrae superioris muscle secondary to midbrain injury. However, eyelid retractions can occur in other neurological diseases, not directly related with the midbrain. We report three patients who developed eyelid retraction. One patient had a bilateral eyelid retraction, related with Creutzfeldt-Jakob disease (CJD). Another patient had a unilateral right eyelid retraction associated with a thalamic-mesencephalic infarct...
February 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28410866/backward-masking-interrupts-spatial-attention-slows-downstream-processing-and-limits-conscious-perception
#10
Talia Losier, Christine Lefebvre, Mattia Doro, Roberto Dell'Acqua, Pierre Jolicœur
The attentional blink (AB) is a difficulty in correctly processing a target when it follows one or more other targets after a short delay. When no backward mask is presented after the last critical target, there is no or little behavioral AB deficit. The mask plays an important role in limiting conscious access to target information. In this electrophysiological study, we tested the impact of masking on the deployment and engagement of attention by measuring the N2pc and P3 components in an RSVP paradigm. We found that the presence of a mask in an AB paradigm reduced the amplitude of the N2pc, P3a, and P3b components...
April 11, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28368200/word-and-face-processing-engage-overlapping-distributed-networks-evidence-from-rsvp-and-eeg-investigations
#11
Amanda K Robinson, David C Plaut, Marlene Behrmann
Words and faces have vastly different visual properties, but increasing evidence suggests that word and face processing engage overlapping distributed networks. For instance, fMRI studies have shown overlapping activity for face and word processing in the fusiform gyrus despite well-characterized lateralization of these objects to the left and right hemispheres, respectively. To investigate whether face and word perception influences perception of the other stimulus class and elucidate the mechanisms underlying such interactions, we presented images using rapid serial visual presentations...
April 3, 2017: Journal of Experimental Psychology. General
https://www.readbyqxmd.com/read/28325878/perceptual-integration-without-conscious-access
#12
Johannes J Fahrenfort, Jonathan van Leeuwen, Christian N L Olivers, Hinze Hogendoorn
The visual system has the remarkable ability to integrate fragmentary visual input into a perceptually organized collection of surfaces and objects, a process we refer to as perceptual integration. Despite a long tradition of perception research, it is not known whether access to consciousness is required to complete perceptual integration. To investigate this question, we manipulated access to consciousness using the attentional blink. We show that, behaviorally, the attentional blink impairs conscious decisions about the presence of integrated surface structure from fragmented input...
April 4, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28278736/mood-effects-on-attentional-control-a-preregistered-replication-study-and-critical-analysis
#13
Helen Tibboel
In a widely cited paper, Jefferies et al. ( 2008 ) report a study in which they manipulated participants' mood and examined the effects of this manipulation on their performance on the Attentional Blink task. Their results revealed an interaction between emotional valence and arousal: attentional control of participants who experienced a negative mood with low arousal (i.e. sadness) was best, whereas it was worst for participants who experienced a negative mood with high arousal (i.e. anxiety). Performance for participants who were in a positive mood, either with low arousal (i...
February 20, 2017: Cognition & Emotion
https://www.readbyqxmd.com/read/28271390/alpha-beta-the-rhythm-of-the-attentional-blink
#14
Kimron L Shapiro, Simon Hanslmayr, James T Enns, Alejandro Lleras
Extant theories of the attentional blink propose that the most critical factor in determining second target accuracy is the time that elapses between the first and second targets. We report that this conclusion has overlooked an equally important determinant, namely, the frequency of the entraining stream in which these targets are embedded. Specifically, we show in two experiments that the signature of the attentional blink-second target accuracy that increases with intertarget lag-is significantly larger for entraining streams that are in the alpha-beta frequency range, relative to streams that are slower (theta) or faster (gamma)...
March 7, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/28265963/do-emotion-induced-blindness-and-the-attentional-blink-share-underlying-mechanisms-an-event-related-potential-study-of-emotionally-arousing-words
#15
Jeffrey MacLeod, Brandie M Stewart, Aaron J Newman, Karen M Arnell
When two targets are presented within approximately 500 ms of each other in the context of rapid serial visual presentation (RSVP), participants' ability to report the second target is reduced compared to when the targets are presented further apart in time. This phenomenon is known as the attentional blink (AB). The AB is increased in magnitude when the first target is emotionally arousing. Emotionally arousing stimuli can also capture attention and create an AB-like effect even when these stimuli are presented as to-be-ignored distractor items in a single-target RSVP task...
March 6, 2017: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/28263628/frozen-in-time-concurrent-task-performance-interferes-with-temporal-shifts-of-attention
#16
Troy A W Visser
It is well known that the requirement to perform a concurrent task interferes with many aspects of perception and cognition. Evidence suggests that this interference extends to spatial shifts of attention, which appear to be reduced in efficiency when they must be performed while processing related to another task is ongoing. Here, the authors investigate whether concurrent tasks also interfere with shifts of temporal attention-that is, with the ability to shift attention to an expected time of stimulus onset...
March 6, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28255172/reaching-back-the-relative-strength-of-the-retroactive-emotional-attentional-blink
#17
Áine Ní Choisdealbha, Richard M Piech, John K Fuller, David H Zald
Visual stimuli with emotional content appearing in close temporal proximity either before or after a target stimulus can hinder conscious perceptual processing of the target via an emotional attentional blink (EAB). This occurs for targets that appear after the emotional stimulus (forward EAB) and for those appearing before the emotional stimulus (retroactive EAB). Additionally, the traditional attentional blink (AB) occurs because detection of any target hinders detection of a subsequent target. The present study investigated the relations between these different attentional processes...
March 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28217081/blinker-automated-extraction-of-ocular-indices-from-eeg-enabling-large-scale-analysis
#18
Kelly Kleifges, Nima Bigdely-Shamlo, Scott E Kerick, Kay A Robbins
Electroencephalography (EEG) offers a platform for studying the relationships between behavioral measures, such as blink rate and duration, with neural correlates of fatigue and attention, such as theta and alpha band power. Further, the existence of EEG studies covering a variety of subjects and tasks provides opportunities for the community to better characterize variability of these measures across tasks and subjects. We have implemented an automated pipeline (BLINKER) for extracting ocular indices such as blink rate, blink duration, and blink velocity-amplitude ratios from EEG channels, EOG channels, and/or independent components (ICs)...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28129062/-nonspatial-attentional-deficits-interact-with-spatial-position-in-neglect
#19
Dongyun Li, Christopher Rorden, Hans-Otto Karnath
A widely debated question concerns whether or not spatial and nonspatial components of visual attention interact in attentional performance. Spatial neglect is a common consequence of brain injury where individuals fail to respond to stimuli presented on their contralesional side. It has been argued that, beyond the spatial bias, these individuals also tend to exhibit nonspatial perceptual deficits. Here we demonstrate that the "nonspatial" deficits affecting the temporal dynamics of attentional deployment are in fact modulated by spatial position...
May 2017: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/28097516/are-event-related-potentials-to-dynamic-facial-expressions-of-emotion-related-to-individual-differences-in-the-accuracy-of-processing-facial-expressions-and-identity
#20
Guillermo Recio, Oliver Wilhelm, Werner Sommer, Andrea Hildebrandt
Despite a wealth of knowledge about the neural mechanisms behind emotional facial expression processing, little is known about how they relate to individual differences in social cognition abilities. We studied individual differences in the event-related potentials (ERPs) elicited by dynamic facial expressions. First, we assessed the latent structure of the ERPs, reflecting structural face processing in the N170, and the allocation of processing resources and reflexive attention to emotionally salient stimuli, in the early posterior negativity (EPN) and the late positive complex (LPC)...
January 17, 2017: Cognitive, Affective & Behavioral Neuroscience
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