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rapid serial visual presentation

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https://www.readbyqxmd.com/read/29283998/method-for-enhancing-single-trial-p300-detection-by-introducing-the-complexity-degree-of-image-information-in-rapid-serial-visual-presentation-tasks
#1
Zhimin Lin, Ying Zeng, Li Tong, Hangming Zhang, Chi Zhang, Bin Yan
The application of electroencephalogram (EEG) generated by human viewing images is a new thrust in image retrieval technology. A P300 component in the EEG is induced when the subjects see their point of interest in a target image under the rapid serial visual presentation (RSVP) experimental paradigm. We detected the single-trial P300 component to determine whether a subject was interested in an image. In practice, the latency and amplitude of the P300 component may vary in relation to different experimental parameters, such as target probability and stimulus semantics...
2017: PloS One
https://www.readbyqxmd.com/read/29243207/sparing-and-impairing-emotion-modulation-of-the-attentional-blink-and-the-spread-of-sparing-in-a-3-target-rsvp-task
#2
Manuel Petrucci, Anna Pecchinenda
The performance impairment (attentional blink, AB) on a second target (T2) when it is presented within 200-500 ms after a first target (T1) during rapid serial visual presentation (RSVP) is typically attributed to resource depletion. The AB does not occur when targets appear in immediate sequence (sparing). Recently, this account has been challenged by findings that the lag 1 sparing can spread to later lags when using a 3-target RSVP. Two experiments using the 3-targets RSVP investigated the relative contribution of resource depletion and attentional enhancement and/or inhibition on the AB and the sparing when T1 (Exp...
December 14, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/29230171/spatial-temporal-feature-analysis-on-single-trial-event-related-potential-for-rapid-face-identification
#3
Lei Jiang, Yun Wang, Bangyu Cai, Yueming Wang, Yiwen Wang
The event-related potential (ERP) is the brain response measured in electroencephalography (EEG), which reflects the process of human cognitive activity. ERP has been introduced into brain computer interfaces (BCIs) to communicate the computer with the subject's intention. Due to the low signal-to-noise ratio of EEG, most ERP studies are based on grand-averaging over many trials. Recently single-trial ERP detection attracts more attention, which enables real time processing tasks as rapid face identification...
2017: Frontiers in Computational Neuroscience
https://www.readbyqxmd.com/read/29222993/supplementation-of-gamma-aminobutyric-acid-gaba-affects-temporal-but-not-spatial-visual-attention
#4
Anna Leonte, Lorenza S Colzato, Laura Steenbergen, Bernhard Hommel, Elkan G Akyürek
In a randomized, double-blind, and placebo-controlled experiment, the acute effects of gamma-aminobutyric acid (GABA) supplementation on temporal and spatial attention in young healthy adults were investigated. A hybrid two-target rapid serial visual presentation task was used to measure temporal attention and integration. Additionally, a visual search task was used to measure the speed and accuracy of spatial attention. While temporal attention depends primarily on the distribution of limited attentional resources across time, spatial attention represents the engagement and disengagement by relevant and irrelevant stimuli across the visual field...
December 6, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/29208892/discrete-and-continuous-mechanisms-of-temporal-selection-in-rapid-visual-streams
#5
Sébastien Marti, Stanislas Dehaene
Humans can reliably detect a target picture even when tens of images are flashed every second. Here we use magnetoencephalography to dissect the neural mechanisms underlying the dynamics of temporal selection during a rapid serial visual presentation task. Multivariate decoding algorithms allow us to track the overlapping brain responses induced by each image in a rapid visual stream. The results show that temporal selection involves a sequence of gradual followed by all-or-none stages: (i) all images first undergo the same parallel processing pipeline; (ii) starting around 150 ms, responses to multiple images surrounding the target are continuously amplified in ventral visual areas; (iii) only the images that are subsequently reported elicit late all-or-none activations in visual and parietal areas around 350 ms...
December 5, 2017: Nature Communications
https://www.readbyqxmd.com/read/29187831/learning-where-to-look-for-high-value-improves-decision-making-asymmetrically
#6
Jaron T Colas, Joy Lu
Decision making in any brain is imperfect and costly in terms of time and energy. Operating under such constraints, an organism could be in a position to improve performance if an opportunity arose to exploit informative patterns in the environment being searched. Such an improvement of performance could entail both faster and more accurate (i.e., reward-maximizing) decisions. The present study investigated the extent to which human participants could learn to take advantage of immediate patterns in the spatial arrangement of serially presented foods such that a region of space would consistently be associated with greater subjective value...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29170759/autism-attention-and-alpha-oscillations-an-electrophysiological-study-of-attentional-capture
#7
Brandon Keehn, Marissa Westerfield, Ralph-Axel Müller, Jeanne Townsend
Background: Autism spectrum disorder (ASD) is associated with deficits in adaptively orienting attention to behaviorally-relevant information. Neural oscillatory activity plays a key role in brain function and provides a high-resolution temporal marker of attention dynamics. Alpha band (8-12 Hz) activity is associated with both selecting task-relevant stimuli and filtering task-irrelevant information. Methods: The present study used electroencephalography (EEG) to examine alpha-band oscillatory activity associated with attentional capture in nineteen children with ASD and twenty-one age- and IQ-matched typically developing (TD) children...
September 2017: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
https://www.readbyqxmd.com/read/29157417/effect-of-emotions-on-temporal-attention
#8
Maruti V Mishra, Sonia B Ray, Narayanan Srinivasan
Emotions play a significant role in guiding everyday actions and strongly interact with attention. The processing of emotional information over time and the influence of attention on such processing has been studied through the phenomenon of attentional blink using rapid serial visual presentations (RSVP) tasks. This chapter discusses the interaction between temporal attention and the type of emotional information (words, scenes, and facial expressions) presented during or before the RSVP stream. The findings show that the affective content and the arousal value of the emotional stimuli presented as first target, second target, or both affects the magnitude and the duration of the blink window...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29157407/oculomotor-measures-reveal-the-temporal-dynamics-of-preparing-for-search
#9
Katya Olmos-Solis, Anouk M van Loon, Sander A Los, Christian N L Olivers
Theories of visual search assume that selection is driven by an active template representation of the target object. Earlier studies suggest that template activation occurs prior to search, but the temporal dynamics of such preactivation remain unclear. Two experiments employed microsaccades to track both general preparation (i.e., anticipation of the search task as such) and template-specific preparation (i.e., anticipation of target selection) of visual search. Participants memorized a target color (i.e., the template) for an upcoming search task...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29147961/spatiotemporal-competition-and-task-relevance-shape-the-spatial-distribution-of-emotional-interference-during-rapid-visual-processing-evidence-from-gaze-contingent-eye-tracking
#10
Briana L Kennedy, Daniel Pearson, David J Sutton, Tom Beesley, Steven B Most
People's ability to perceive rapidly presented targets can be disrupted both by voluntary encoding of a preceding target and by spontaneous attention to salient distractors. Distinctions between these sources of interference can be found when people search for a target in multiple rapid streams instead of a single stream: voluntary encoding of a preceding target often elicits subsequent perceptual lapses across the visual field, whereas spontaneous attention to emotionally salient distractors appears to elicit a spatially localized lapse, giving rise to a theoretical account suggesting that emotional distractors and subsequent targets compete spatiotemporally during rapid serial visual processing...
November 16, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/29102778/early-visual-processing-of-snakes-and-angry-faces-an-erp-study
#11
Sandra J E Langeslag, Jan W van Strien
Snakes and angry faces are common fear stimuli and both elicit an Early Posterior Negativity (EPN) in the event-related potential, which indicates that they capture early automatic visual attention. But because snakes have been a predatory threat for primates since long before communication through facial expressions evolved, we tested the hypothesis that the EPN for snakes would be more pronounced than the EPN for angry faces. We carefully controlled for differences between reptiles and faces by using lizards and neutral faces as control stimuli...
November 1, 2017: Brain Research
https://www.readbyqxmd.com/read/29099388/a-review-of-rapid-serial-visual-presentation-based-brain-computer-interfaces
#12
Stephanie Lees, Natalie Dayan, Hubert Cecotti, Paul McCullagh, Liam Maguire, Fabien Lotte, Damien H Coyle
Rapid serial visual presentation (RSVP) combined with the detection of event related brain responses facilitates the selection of relevant information contained in a stream of images presented rapidly to a human. Event related potentials (ERPs), measured non-invasively with electroencephalography (EEG), can be associated with infrequent target stimuli(images) in groups of images, potentially providing an interface for human-machine symbiosis, where humans can interact and interface with a computer without moving and which may offer faster image sorting than scenarios where humans are expected to physically react when a target image is detected...
November 3, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29060296/design-of-deep-convolutional-networks-for-prediction-of-image-rapid-serial-visual-presentation-events
#13
Zijing Mao, Wan Xiang Yao, Yufe Huang
We report in this paper an investigation of convolutional neural network (CNN) models for target prediction in time-locked image rapid serial visual presentation (RSVP) experiment. We investigated CNN models with 11 different designs of convolution filters in capturing spatial and temporal correlations in EEG data. We showed that for both within-subject and cross-subject predictions, the CNN models outperform the state-of-the-art algorithms: Bayesian linear discriminant analysis (BLDA) and xDAWN spatial filtering and achieved >6% improvement...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29038663/repetition-blindness-for-faces-a-comparison-of-face-identity-expression-and-gender-judgments
#14
Karen Murphy, Zoe Ward
Repetition blindness (RB) refers to the impairment in reporting two identical targets within a rapid serial visual presentation stream. While numerous studies have demonstrated RB for words and picture of objects, very few studies have examined RB for faces. This study extended this research by examining RB when the two faces were complete repeats (same emotion and identity), identity repeats (same individual, different emotion), and emotion repeats (different individual, same emotion) for identity, gender, and expression judgment tasks...
2017: Advances in Cognitive Psychology
https://www.readbyqxmd.com/read/28892157/adaptability-and-specificity-of-inhibition-processes-in-distractor-induced-blindness
#15
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
#16
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...
October 2017: Journal of Experimental Psychology. General
https://www.readbyqxmd.com/read/28872342/proactive-deprioritization-of-emotional-distractors-enhances-target-perception
#17
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
#18
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
#19
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...
September 16, 2017: Vision Research
https://www.readbyqxmd.com/read/28835560/the-processing-of-images-of-biological-threats-in-visual-short-term-memory
#20
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
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