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https://www.readbyqxmd.com/read/28892157/adaptability-and-specificity-of-inhibition-processes-in-distractor-induced-blindness
#1
Gesche N Winther, Michael Niedeggen
In a rapid serial visual presentation task, inhibition processes cumulatively impair processing of a target possessing distractor properties. This phenomenon-known as distractor-induced blindness-has thus far only been elicited using dynamic visual features, such as motion and orientation changes. In three ERP experiments, we used a visual object feature-color-to test for the adaptability and specificity of the effect. In Experiment I, participants responded to a color change (target) in the periphery whose onset was signaled by a central cue...
September 11, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28891656/implied-reading-direction-and-prioritization-of-letter-encoding
#2
Alex O Holcombe, Elizabeth H L Nguyen, Patrick T Goodbourn
Capacity limits hinder processing of multiple stimuli, contributing to poorer performance for identifying two briefly presented letters than for identifying a single letter. Higher accuracy is typically found for identifying the letter on the left, which has been attributed to a right-hemisphere dominance for selective attention. Here, we use rapid serial visual presentation (RSVP) of letters in two locations at once. The letters to be identified are simultaneous and cued by rings. In the first experiment, we manipulated implied reading direction by rotating or mirror-reversing the letters to face to the left rather than to the right...
September 11, 2017: Journal of Experimental Psychology. General
https://www.readbyqxmd.com/read/28872342/proactive-deprioritization-of-emotional-distractors-enhances-target-perception
#3
Briana L Kennedy, Vera E Newman, Steven B Most
There are many situations in which it is important to focus on a task in the face of emotional distraction. Yet, emotional distractors can impair our ability to report items that appear soon after them, an effect known as emotion-induced blindness (EIB). To what degree does it help to know about emotional distractors ahead of time? Can we deprioritize emotional distractors when forewarned that they will appear? To address this question, we tested whether participants could overcome EIB when forewarned about the nature of an emotional distractor...
September 4, 2017: Emotion
https://www.readbyqxmd.com/read/28871324/visual-and-auditory-temporal-integration-in-healthy-younger-and-older-adults
#4
Jefta D Saija, Deniz Başkent, Tjeerd C Andringa, Elkan G Akyürek
As people age, they tend to integrate successive visual stimuli over longer intervals than younger adults. It may be expected that temporal integration is affected similarly in other modalities, possibly due to general, age-related cognitive slowing of the brain. However, the previous literature does not provide convincing evidence that this is the case in audition. One hypothesis is that the primacy of time in audition attenuates the degree to which temporal integration in that modality extends over time as a function of age...
September 4, 2017: Psychological Research
https://www.readbyqxmd.com/read/28859969/non-singleton-colors-are-not-attended-faster-than-categories-but-they-are-encoded-faster-a-combined-approach-of-behavior-modeling-and-erps
#5
Chloe Callahan-Flintoft, Brad Wyble
The visual system is able to detect targets according to a variety of criteria, such as by categorical (letter vs digit) or featural attributes (color). These criteria are often used interchangeably in rapid serial visual presentation (RSVP) studies but little is known about how rapidly they are processed. The aim of this work was to compare the time course of attentional selection and memory encoding for different types of target criteria. We conducted two experiments where participants reported one or two targets (T1, T2) presented in lateral RSVP streams...
August 28, 2017: Vision Research
https://www.readbyqxmd.com/read/28835560/the-processing-of-images-of-biological-threats-in-visual-short-term-memory
#6
Philip T Quinlan, Yue Yue, Dale J Cohen
The idea that there is enhanced memory for negatively, emotionally charged pictures was examined. Performance was measured under rapid, serial visual presentation (RSVP) conditions in which, on every trial, a sequence of six photo-images was presented. Briefly after the offset of the sequence, two alternative images (a target and a foil) were presented and participants attempted to choose which image had occurred in the sequence. Images were of threatening and non-threatening cats and dogs. The target depicted either an animal expressing an emotion distinct from the other images, or the sequences contained only images depicting the same emotional valence...
August 30, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28809703/motion-based-rapid-serial-visual-presentation-for-gaze-independent-brain-computer-interfaces
#7
Dong-Ok Won, Han-Jeong Hwang, Dong-Min Kim, Klaus-Robert Muller, Seong-Whan Lee
Most event-related potential (ERP)-based braincomputer interface (BCI) spellers primarily use matrix layouts, and generally require moderate eye movement for successful operation. The fundamental objective of this study is to enhance the perceptibility of target characters by introducing motion stimuli to classical rapid serial visual presentation (RSVP) spellers that do not require any eye movement, thereby applying them to paralyzed patients with oculomotor dysfunctions. To test the feasibility of the proposed motion-based RSVP paradigm, we implemented three RSVP spellers: i) fixed-direction motion (FM-RSVP), ii) random-direction motion (RM-RSVP), and iii) (the conventional) non-motion stimulation (NM-RSVP), and evaluated the effect of the three different stimulation methods on spelling performance...
August 11, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28808655/multirapid-serial-visual-presentation-framework-for-eeg-based-target-detection
#8
Zhimin Lin, Ying Zeng, Hui Gao, Li Tong, Chi Zhang, Xiaojuan Wang, Qunjian Wu, Bin Yan
Target image detection based on a rapid serial visual presentation (RSVP) paradigm is a typical brain-computer interface system with various applications, such as image retrieval. In an RSVP paradigm, a P300 component is detected to determine target images. This strategy requires high-precision single-trial P300 detection methods. However, the performance of single-trial detection methods is relatively lower than that of multitrial P300 detection methods. Image retrieval based on multitrial P300 is a new research direction...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28797898/lateralization-of-spatial-rather-than-temporal-attention-underlies-the-left-hemifield-advantage-in-rapid-serial-visual-presentation
#9
Dariusz Asanowicz, Lena Kruse, Kamila Śmigasiewicz, Rolf Verleger
In bilateral rapid serial visual presentation (RSVP), the second of two targets, T1 and T2, is better identified in the left visual field (LVF) than in the right visual field (RVF). This LVF advantage may reflect hemispheric asymmetry in temporal attention or/and in spatial orienting of attention. Participants performed two tasks: the "standard" bilateral RSVP task (Exp.1) and its unilateral variant (Exp.1 & 2). In the bilateral task, spatial location was uncertain, thus target identification involved stimulus-driven spatial orienting...
August 7, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28792451/a-novel-computer-oculomotor-rehabilitation-cor-program-for-mild-traumatic-brain-injury-mtbi
#10
Kenneth J Ciuffreda, Naveen K Yadav, Preethi Thiagarajan, Diana P Ludlam
Individuals with traumatic brain injury (TBI) manifest a wide range of visual dysfunctions. One of the most prevalent involves the oculomotor system, which includes version, vergence, and accommodation. However, until recently, there has been no comprehensive, computer-based program for remediation of these oculomotor deficits. We present such an oculomotor rehabilitation program that has been tested in a clinical trial in patients having TBI with a high degree of success based on before-and-after objective system recordings, performance measures, and related visual symptomotology...
August 9, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28777057/what-you-see-is-what-you-remember-visual-chunking-by-temporal-integration-enhances-working-memory
#11
Elkan G Akyürek, Nils Kappelmann, Marc Volkert, Hedderik van Rijn
Human memory benefits from information clustering, which can be accomplished by chunking. Chunking typically relies on expertise and strategy, and it is unknown whether perceptual clustering over time, through temporal integration, can also enhance working memory. The current study examined the attentional and working memory costs of temporal integration of successive target stimulus pairs embedded in rapid serial visual presentation. ERPs were measured as a function of behavioral reports: One target, two separate targets, or two targets reported as a single integrated target...
August 4, 2017: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/28718881/identification-of-bodies-by-unique-serial-numbers-on-implanted-medical-devices
#12
Melissa M Blessing, Peter T Lin
Visual identification is the most common identification method used by medical examiners but is not always possible. Alternative methods include X-ray, fingerprint, or DNA comparison, but these methods require additional resources. Comparison of serial numbers on implanted medical devices is a rapid and definitive method of identification. To assess the practicality of using this method, we reviewed 608 consecutive forensic autopsies performed at a regional medical examiner office. Of these, 56 cases required an alternative method of identification due to decomposition (n = 35), gunshot wound (n = 9), blunt trauma (n = 6), or charring (n = 6)...
July 18, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28709924/training-peripheral-vision-to-read-boosting-the-speed-of-letter-processing
#13
Deyue Yu, Gordon E Legge, Gunther Wagoner, Susana T L Chung
Central-field loss necessitates the use of peripheral vision which makes reading slow and difficult. Slower temporal processing of letter recognition has been shown to be a limiting factor in peripheral letter recognition and reading. Previous studies showed that perceptual learning can increase the number of letters recognized on each fixation and is accompanied by an increase in reading speed. We hypothesized that improvement in temporal processing speed underlies the observed training effects. Here, we proposed an adaptive training procedure to focus on boosting the speed of letter recognition, and investigated whether peripheral reading would be enhanced by this training method...
July 19, 2017: Vision Research
https://www.readbyqxmd.com/read/28695295/prioritized-identification-of-attractive-and-romantic-partner-faces-in-rapid-serial-visual-presentation
#14
Koyo Nakamura, Shihoko Arai, Hideaki Kawabata
People are sensitive to facial attractiveness because it is an important biological and social signal. As such, our perceptual and attentional system seems biased toward attractive faces. We tested whether attractive faces capture attention and enhance memory access in an involuntary manner using a dual-task rapid serial visual presentation (dtRSVP) paradigm, wherein multiple faces were successively presented for 120 ms. In Experiment 1, participants (N = 26) were required to identify two female faces embedded in a stream of animal faces as distractors...
July 10, 2017: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/28676734/fuzzy-decision-making-fuser-fdmf-for-integrating-human-machine-autonomous-hma-systems-with-adaptive-evidence-sources
#15
Yu-Ting Liu, Nikhil R Pal, Amar R Marathe, Yu-Kai Wang, Chin-Teng Lin
A brain-computer interface (BCI) creates a direct communication pathway between the human brain and an external device or system. In contrast to patient-oriented BCIs, which are intended to restore inoperative or malfunctioning aspects of the nervous system, a growing number of BCI studies focus on designing auxiliary systems that are intended for everyday use. The goal of building these BCIs is to provide capabilities that augment existing intact physical and mental capabilities. However, a key challenge to BCI research is human variability; factors such as fatigue, inattention, and stress vary both across different individuals and for the same individual over time...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28656503/electrophysiological-and-behavioral-evidence-reveals-the-effects-of-trait-anxiety-on-contingent-attentional-capture
#16
Yi-Chun Tsai, Hsin-Jie Lu, Chi-Fu Chang, Wei-Kuang Liang, Neil G Muggleton, Chi-Hung Juan
Few studies have investigated the effects of anxiety on contingent attentional capture. The present study examined contingent attentional capture in trait anxiety by applying a rapid serial visual presentation (RSVP) paradigm during electroencephalographic recording. Overall, the behavioral and electrophysiological results showed a larger capture effect when a distractor was the same color as the target compared to when the distractor was not of the target color. Moreover, high-anxiety individuals showed a larger N2pc in the target colored distractor condition and nontarget colored distractor condition compared to the distractor-absent condition...
June 27, 2017: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/28643206/right-visual-field-advantage-in-the-attentional-blink-asymmetry-in-attentional-gating-across-time-and-space
#17
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/28604795/individual-differences-in-dual-target-rsvp-task-performance-relate-to-entrainment-but-not-to-individual-alpha-frequency
#18
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/28584952/identity-and-semantic-negative-priming-in-rapid-serial-visual-presentation-streams
#19
Lin Li, Ewald Neumann, Zhe Chen
In selective attention tasks, the efficiency of processing concurrently presented target and distractor stimuli in a given display is often influenced by the relationship these stimuli have with those in the previous display. When a to-be-attended target on a current trial (the probe trial) matches the ignored, non-target distractor on a previous trial (the prime trial), a response to the target is typically delayed compared with when the two stimuli are not associated. This negative priming (NP) phenomenon has been observed in numerous studies with traditional NP tasks presenting the target and distractor simultaneously in both the prime and probe trial couplets...
June 5, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/28562664/towards-the-automated-localisation-of-targets-in-rapid-image-sifting-by-collaborative-brain-computer-interfaces
#20
Ana Matran-Fernandez, Riccardo Poli
The N2pc is a lateralised Event-Related Potential (ERP) that signals a shift of attention towards the location of a potential object of interest. We propose a single-trial target-localisation collaborative Brain-Computer Interface (cBCI) that exploits this ERP to automatically approximate the horizontal position of targets in aerial images. Images were presented by means of the rapid serial visual presentation technique at rates of 5, 6 and 10 Hz. We created three different cBCIs and tested a participant selection method in which groups are formed according to the similarity of participants' performance...
2017: PloS One
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