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A Critical Analysis on Perceptual Contrast and its Use in Visual Information Analysis and Processing

Azeddine Beghdadi, Muhammad Ali Qureshi, Seyed Ali Amirshahi, Aladine Chetouani, Marius Pedersen
2020 IEEE Access  
for visual information processing and analysis.  ...  The main goal of this paper is to provide a critical study on the use of contrast in various perceptually inspired image processing applications.  ... 
doi:10.1109/access.2020.3019350 fatcat:ycpakdyymbhodcmspesiq74lne

Greater sensitivity of the cortical face processing system to perceptually-equated face detection

S. Maher, T. Ekstrom, Y. Tong, L.D. Nickerson, B. Frederick, Y. Chen
2016 Brain Research  
Face detection, the perceptual capacity to identify a visual stimulus as a face before probing deeper into specific attributes (such as its identity or emotion), is essential for social functioning.  ...  This pattern of result indicates that FFA and OFA have a greater sensitivity to face detection signals and selectively support the initial process of face vs. non-face object perception.  ...  Ken Nakayama for support and discussion in the early stage of this study.  ... 
doi:10.1016/j.brainres.2015.11.011 pmid:26592952 pmcid:PMC4733446 fatcat:rylm4yhc7nes5mcic2b7jtbxdu

Deactivation in the posterior mid-cingulate cortex reflects perceptual transitions during binocular rivalry: Evidence from simultaneous EEG-fMRI

Abhrajeet V. Roy, Keith W. Jamison, Sheng He, Stephen A. Engel, Bin He
2017 NeuroImage  
We evaluated a novel SSVEP-informed fMRI analysis in this study in order to delineate the temporal dynamics of rivalry-related BOLD activity from both an electrophysiological and behavioral perspective  ...  Our findings point to a critical role of a right lateralized fronto-parietal network in the processing of bistable stimuli, given that BOLD activity in the right superior/inferior parietal lobules was  ...  Acknowledgments This work was supported in part by NIH EY023101, EB008389, EB021027, NS096761, AT009263, HL117664, and NSF CBET-1450956, CBET-1264782.  ... 
doi:10.1016/j.neuroimage.2017.02.041 pmid:28219776 pmcid:PMC5531216 fatcat:z5ryy57qf5ffhcv5dmiuiwhw6i

Channel surfing in the visual brain

Paul T. Sowden, Philippe G. Schyns
2006 Trends in Cognitive Sciences  
We argue that visual analysis involves a fundamental interaction between the observer's top-down categorisation goals and the incoming stimulation.  ...  Our analysis of SF processing provides a case study that emphasises the continuity between higher-level cognition and lower-level perception.  ...  Acknowledgements This work was supported by the BBSRC (grants S13185 & S13186) and ESRC (R42200134352; R00032165). Thanks to Iona Alexander for comments on an earlier draft of this manuscript.  ... 
doi:10.1016/j.tics.2006.10.007 pmid:17071128 fatcat:bwx66kgotfdtrjaidickyvgvie

A meta-analytic review of multisensory imagery identifies the neural correlates of modality-specific and modality-general imagery

Chris McNorgan
2012 Frontiers in Human Neuroscience  
Recent investigations of imagery in many new domains and the parallel development of new meta-analytic techniques now afford us a clearer picture of the relationship between the neural processes underlying  ...  This meta-analysis surveyed 65 studies investigating modality-specific imagery in auditory, tactile, motor, gustatory, olfactory, and three visual sub-domains: form, color and motion.  ...  If this information is captured in the perceptual processing stream, it would be unnecessary to encode this information at higher levels of abstraction.  ... 
doi:10.3389/fnhum.2012.00285 pmid:23087637 pmcid:PMC3474291 fatcat:ovrmn4lhavgbhj3qkjn7y3c7my

Exemplifying the Inter-Disciplinary Nature of Visualization Research

Robert F. Erbacher
2007 Information Visualisation  
This paper proposes an interdisciplinary design process for the development of novel visualization techniques and discusses requirements for ensuring that such a process results in effective techniques  ...  Given the importance of perception, we highlight the impact of perception, and thus cognitive psychology, on the visual interpretation process.  ...  Perceptual Foci In terms of perception of visual displays we are relying on two processes.  ... 
doi:10.1109/iv.2007.49 dblp:conf/iv/Erbacher07 fatcat:l5gok5isive6vidjmbxyny4llm

Interactive Visual and Postvisual Processes and Their Roles in Form-Specific Memory

Chad J. Marsolek, David R. Andresen
2005 Canadian journal of experimental psychology  
Effects of depth of encoding on form-specific memory were examined. After viewing words (e.g.,  ...  In addition, it may be useful to note that somewhat similar ideas have been proposed by Hirshman, Trembath, and Mulligan (1994) , but with a focus on encoding processes.  ...  how it was used in a word (they were to count only "a," "e," "i," "o," and "u" as vowels).  ... 
doi:10.1037/h0087466 pmid:16038066 fatcat:ileeuuezfvggzeblo3bj6if5c4

Act Quickly, Decide Later: Long-latency Visual Processing Underlies Perceptual Decisions but Not Reflexive Behavior

Jacob Jolij, H. Steven Scholte, Simon van Gaal, Timothy L. Hodgson, Victor A. F. Lamme
2011 Journal of Cognitive Neuroscience  
However, is such a view correct? By using a texture discrimination task, we show that the brain relies on long-latency visual processing in order to guide perceptual decisions.  ...  and conscious, representation is used to initiate a visually guided response  ...  Acknowledgments We thank Danielle Huisman and Renske Bijl for help with data collection and two anonymous referees for their helpful comments.  ... 
doi:10.1162/jocn_a_00034 pmid:21557644 fatcat:27shqzdx3vevxb4tvq3ydi2ej4

Quantifying the Performance Limits of Human Saccadic Targeting during Visual Search

Miguel P Eckstein, Brent R Beutter, Leland S Stone
2001 Perception  
In this study, we use ideal-observer analysis to estimate the visual information used for the first saccade during a search for a target disk in noise.  ...  information processing used by the saccadic and perceptual systems.  ...  APPENDIX Signal detection theory and the definition of d H Models based on signal detection theory (Green and Swets 1966) have been successfully applied to predict human accuracy in perceptual decisions  ... 
doi:10.1068/p3128 pmid:11768491 fatcat:os3lyoo6bfad5hftzsps2zmsre

Similar Neural Representations of the Target for Saccades and Perception during Search

M. P. Eckstein, B. R. Beutter, B. T. Pham, S. S. Shimozaki, L. S. Stone
2007 Journal of Neuroscience  
We use classification image analysis, a form of reverse correlation, to estimate the behavioral receptive fields of the visual mechanisms responsible for saccadic and perceptual responses during the same  ...  Here, we investigate the visual representation of target information in the human brain, both for perceptual decisions and for saccadic actions during visual search.  ...  In both conditions, the stimulus was immediately followed by a high-contrast mask to minimize further visual processing, and observers used an arrow to indicate their 5-AFC perceptual decision about target  ... 
doi:10.1523/jneurosci.3975-06.2007 pmid:17287501 fatcat:wc2enu7v4bfwpktaigwi6i6gpq

Evidence for working memory storage operations in perceptual cortex

Kartik K. Sreenivasan, Caterina Gratton, Jason Vytlacil, Mark D'Esposito
2014 Cognitive, Affective, & Behavioral Neuroscience  
Recent efforts have identified patterns of activity in visual regions that contain information about items being held in WM.  ...  We present evidence that the features of a face held in WM are stored within face processing regions, that these representations persist across subsequent sensory input, and that information about the  ...  perceptual regions as a result of input from PFC regions involved in storage and (ii) active storage operations in perceptual regions that influence incoming sensory processing and relay that information  ... 
doi:10.3758/s13415-013-0246-7 pmid:24436009 pmcid:PMC4362687 fatcat:ummbd6toinb6bew2mjrk7dkvie

Event-related fMRI studies of false memory: An Activation Likelihood Estimation meta-analysis

Kyle A. Kurkela, Nancy A. Dennis
2016 Neuropsychologia  
No analysis identified a common cluster of activation in the medial temporal lobe.  ...  Several regions were identified in the general false retrieval analysis as well as multiple sub-analyses, indicating their ubiquitous, yet critical role in false retrieval (medial superior frontal gyrus  ...  Acknowledgements The authors wish to thank Caitlin Bowman, Indira Turney, Christina Webb, and John Huhn for comments on earlier versions of this manuscript and Hunter Johndro for his assistance with study  ... 
doi:10.1016/j.neuropsychologia.2015.12.006 pmid:26683385 fatcat:nm2aredm7zeejcew47p2c6szce

The Core Brain Region for Face Processing in Schizophrenia Lacks Face Selectivity

Stephen Maher, Tor Ekstrom, Daphne Holt, Dost Ongur, Yue Chen
2015 Schizophrenia Bulletin  
This finding suggests boosting visual salience of face images as a potential therapeutic venue for improving face perception in this psychiatric disorder.  ...  Methods: We used functional MRI (fMRI) to examine face selectivity of 3 core face-processing regions-fusiform face area (FFA), occipital face area (OFA), and superior temporal sulcus (STS)-in schizophrenia  ...  Acknowledgment The authors have declared that there are no conflicts of interest in relation to the subject of this study.  ... 
doi:10.1093/schbul/sbv140 pmid:26453911 pmcid:PMC4838078 fatcat:r3o7lhqf5vd7ffk6zlwdbrxhne

Modality-Specific Effects of Perceptual Load in Multimedia Processing

Jacob Taylor Fisher, Frederic René Hopp, René Weber
2019 Media and Communication  
visual and auditory content to message complexity and to resource availability in the human processing system.  ...  In this article, we argue that explicating the concepts of perceptual and cognitive load can create progress toward a deeper understanding of modality-specific effects in media processing.  ...  gratefully acknowledge the contributions of Scott Barrere, Jonathan Chavez, Jody Chen, Jonathan Kim, Jonathan Lee, Matthew Lim, Haley Mehlman, Trisha Micarsos, Gustavo Ortega-Negrón, Xing Su, Mable Truong, and  ... 
doi:10.17645/mac.v7i4.2388 fatcat:ga2kfxh3lzdi7knujnzikl4ree

Information content best characterises the hemispheric selectivity of the inferior parietal lobe: a meta-analysis

Oliver Gray, Lewis Fry, Daniela Montaldi
2020 Scientific Reports  
In a meta-analysis, we classify 121 previous fMRI reports of IPL activity arising from episodic memory retrieval, according to the type of information that characterises each fMRI contrast.  ...  To date, others assume that hemispheric specialisation of the IPL is linked with the type of processing; attention processing in the right hemisphere; memory retrieval and semantic judgement in the left  ...  Acknowledgements The University of Manchester and an Engineering and Physical Science Research Council doctoral training grant awarded to OG supported this work.  ... 
doi:10.1038/s41598-020-72228-8 pmid:32934326 fatcat:32ofyqtg2nfz5bxhyc3e55dmge
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