Toward a Unified Theory of Audiovisual Integration in Speech Perception Book PDF

Toward a Unified Theory of Audiovisual Integration in Speech Perception

  • Author : Nicholas Altieri
  • Publisher : Universal-Publishers
  • Release Date : 2010-09-09
  • Genre : Uncategorized
  • Pages : 231
  • ISBN : 9781599423616

Toward a Unified Theory of Audiovisual Integration in Speech Perception Book Description :

Auditory and visual speech recognition unfolds in real time and occurs effortlessly for normal hearing listeners. However, model theoretic descriptions of the systems level cognitive processes responsible for integrating auditory and visual speech information are currently lacking, primarily because they rely too heavily on accuracy rather than reaction time predictions. Speech and language researchers have argued about whether audiovisual integration occurs in a parallel or in coactive fashion, and also the extent to which audiovisual occurs in an efficient manner. The Double Factorial Paradigm introduced in Section 1 is an experimental paradigm that is equipped to address dynamical processing issues related to architecture (parallel vs. coactive processing) as well as efficiency (capacity). Experiment 1 employed a simple word discrimination task to assess both architecture and capacity in high accuracy settings. Experiments 2 and 3 assessed these same issues using auditory and visual distractors in Divided Attention and Focused Attention tasks respectively. Experiment 4 investigated audiovisual integration efficiency across different auditory signal-to-noise ratios. The results can be summarized as follows: Integration typically occurs in parallel with an efficient stopping rule, integration occurs automatically in both focused and divided attention versions of the task, and audiovisual integration is only efficient (in the time domain) when the clarity of the auditory signal is relatively poor--although considerable individual differences were observed. In Section 3, these results were captured within the milieu of parallel linear dynamic processing models with cross channel interactions. Finally, in Section 4, I discussed broader implications for this research, including applications for clinical research and neural-biological models of audiovisual convergence.

Audiovisual Speech Recognition  Correspondence between Brain and Behavior Book PDF

Audiovisual Speech Recognition Correspondence between Brain and Behavior

  • Author : Nicholas Altieri
  • Publisher : Frontiers E-books
  • Release Date : 2014-07-09
  • Genre : Uncategorized
  • Pages : 231
  • ISBN : 9782889192519

Audiovisual Speech Recognition Correspondence between Brain and Behavior Book Description :

Perceptual processes mediating recognition, including the recognition of objects and spoken words, is inherently multisensory. This is true in spite of the fact that sensory inputs are segregated in early stages of neuro-sensory encoding. In face-to-face communication, for example, auditory information is processed in the cochlea, encoded in auditory sensory nerve, and processed in lower cortical areas. Eventually, these “sounds” are processed in higher cortical pathways such as the auditory cortex where it is perceived as speech. Likewise, visual information obtained from observing a talker’s articulators is encoded in lower visual pathways. Subsequently, this information undergoes processing in the visual cortex prior to the extraction of articulatory gestures in higher cortical areas associated with speech and language. As language perception unfolds, information garnered from visual articulators interacts with language processing in multiple brain regions. This occurs via visual projections to auditory, language, and multisensory brain regions. The association of auditory and visual speech signals makes the speech signal a highly “configural” percept. An important direction for the field is thus to provide ways to measure the extent to which visual speech information influences auditory processing, and likewise, assess how the unisensory components of the signal combine to form a configural/integrated percept. Numerous behavioral measures such as accuracy (e.g., percent correct, susceptibility to the “McGurk Effect”) and reaction time (RT) have been employed to assess multisensory integration ability in speech perception. On the other hand, neural based measures such as fMRI, EEG and MEG have been employed to examine the locus and or time-course of integration. The purpose of this Research Topic is to find converging behavioral and neural based assessments of audiovisual integration in speech perception. A further aim is to investigate speech recog

Mathematical Models of Perception and Cognition Volume II Book PDF

Mathematical Models of Perception and Cognition Volume II

  • Author : Joseph W. Houpt
  • Publisher : Routledge
  • Release Date : 2016-05-20
  • Genre : Psychology
  • Pages : 270
  • ISBN : 9781317297482

Mathematical Models of Perception and Cognition Volume II Book Description :

In this two volume festschrift, contributors explore the theoretical developments (Volume I) and applications (Volume II) in traditional cognitive psychology domains, and model other areas of human performance that benefit from rigorous mathematical approaches. It brings together former classmates, students and colleagues of Dr. James T. Townsend, a pioneering researcher in the field since the early 1960s, to provide a current overview of mathematical modeling in psychology. Townsend’s research critically emphasized a need for rigor in the practice of cognitive modeling, and for providing mathematical definition and structure to ill-defined psychological topics. The research captured demonstrates how the interplay of theory and application, bridged by rigorous mathematics, can move cognitive modeling forward.

Perception Cognition Interface   Cross Modal Experiences  Insights into Unified Consciousness Book PDF

Perception Cognition Interface Cross Modal Experiences Insights into Unified Consciousness

  • Author : Aleksandra Mroczko-Wąsowicz
  • Publisher : Frontiers Media SA
  • Release Date : 2017-01-26
  • Genre : Uncategorized
  • Pages : 231
  • ISBN : 9782889450718

Perception Cognition Interface Cross Modal Experiences Insights into Unified Consciousness Book Description :

The present Research Topic explores closely related aspects of mental functioning, namely an interplay between perception and cognition, interactions among various sensory modalities, and finally, more or less unified conscious experiences arising in the context of these relations. Contributions emphasize a high flexibility observed in perception and may be seen as potential challenges to the traditional modular architecture of perceptual systems. Although the articles describe different phenomena, they follow one common theme - to investigate broadly understood unified experience - by studying either perception-cognition integration or the integration between sensory modalities. These integrative processes may well apply to subpersonal unconscious representations. However, the aim here is to approach phenomenal experience and thus a straightforward way of thinking about it is in terms of conscious perception. Putting together scientific and philosophical concerns, this special issue encourages extending the study of perceptual experience beyond the single sense perception to advance our understanding of the complex interdependencies between different sensory modalities, other mental domains, and various kinds of unifying relations within conscious experience. It exhibits a remarkable need to study these phenomena in tangent, and so, the authors examine a variety of ways in which our perceptual experiences may be cross-modal or multisensory, integrated, embodied, synesthetic, cognitively penetrated, or otherwise affected by top-down influences. The Research Topic comprises theoretical and empirical contributions of such fields as philosophy of mind, cognitive science, psychology, and neuroscience in the form of hypothesis and theory articles, original research articles, opinion papers, reviews, and commentaries.

Cognitive Neuroscience Book PDF

Cognitive Neuroscience

  • Author : Marie T. Banich
  • Publisher : Cambridge University Press
  • Release Date : 2018-04-05
  • Genre : Psychology
  • Pages : 231
  • ISBN : 9781108548755

Cognitive Neuroscience Book Description :

Updated fully, this accessible and comprehensive text highlights the most important theoretical, conceptual and methodological issues in cognitive neuroscience. Written by two experienced teachers, the consistent narrative ensures that students link concepts across chapters, and the careful selection of topics enables them to grasp the big picture without getting distracted by details. Clinical applications such as developmental disorders, brain injuries and dementias are highlighted. In addition, analogies and examples within the text, opening case studies, and 'In Focus' boxes engage students and demonstrate the relevance of the material to real-world concerns. Students are encouraged to develop the critical thinking skills that will enable them to evaluate future developments in this fast-moving field. A new chapter on Neuroscience and Society considers how cognitive neuroscience issues relate to the law, education, and ethics, highlighting the clinical and real-world relevance. An expanded online package includes a test bank.

A Matter of Bottom Up or Top Down Processes  The Role of Attention in Multisensory Integration Book PDF

A Matter of Bottom Up or Top Down Processes The Role of Attention in Multisensory Integration

  • Author : Jess Hartcher-O'Brien
  • Publisher : Frontiers Media SA
  • Release Date : 2017-07-04
  • Genre : Electronic book
  • Pages : 231
  • ISBN : 9782889451937

A Matter of Bottom Up or Top Down Processes The Role of Attention in Multisensory Integration Book Description :

The integration of information from various sensory modalities influences behaviour. It can induce behavioural benefits such as faster reaction times and enhanced detection of noisy signals but may also produce illusions, all of which have been characterized by specific neuronal signatures. Yet, while these effects of multisensory integration are largely accepted, the role of attention in this process is still the object of intense debate. On the one hand, it has been suggested that attention may guide multisensory integration in a top-down fashion by selection of specific inputs to be integrated out of the plethora of information in our environment. On the other hand, there is evidence that integration could occur in a bottom-up manner, based on temporal and spatial correlations, and outside the focus of attention. An extreme example is the multisensory enhancement of neural responses in anesthetised animals. Attention itself is not a unitary construct, and may refer to a range of different selection mechanisms. Therefore, the interplay between attention and multisensory integration can take many forms which explain, in part, the diversity of findings and the disputes in the literature. The goal of this Research Topic is to help clarify the picture by trying to answer the following questions from various perspectives: Under which circumstances does multisensory integration take place without attention?, and, When does attention determine the fate of multisensory integration?

Systems Factorial Technology Book PDF

Systems Factorial Technology

  • Author : Daniel Little
  • Publisher : Academic Press
  • Release Date : 2017-04-10
  • Genre : Psychology
  • Pages : 428
  • ISBN : 9780128043868

Systems Factorial Technology Book Description :

Systems Factorial Technology: A Theory Driven Methodology for the Identification of Perceptual and Cognitive Mechanisms explores the theoretical and methodological tools used to investigate fundamental questions central to basic psychological and perceptual processes. Such processes include detection, identification, classification, recognition, and decision-making. This book collects the tools that allow researchers to deal with the pervasive model mimicry problems which exist in standard experimental and theoretical paradigms and includes novel applications to not only basic psychological questions, but also clinical diagnosis and links to neuroscience. Researchers can use this book to begin using the methodology behind SFT and to get an overview of current uses and future directions. The collected developments and applications of SFT allow us to peer inside the human mind and provide strong constraints on psychological theory. Provides a thorough introduction to the diagnostic tools offered by SFT Includes a tutorial on applying the method to reaction time data from a variety of different situations Introduces novel advances for testing the significance of SFT results Incorporates new measures that allow for the relaxation of the high accuracy criterion Examines tools to expand the scope of SFT analyses Applies SFT to a spectrum of different cognitive domains across different sensory modalities

The Oxford Handbook of Cognitive Neuroscience Book PDF

The Oxford Handbook of Cognitive Neuroscience

  • Author : Kevin N Ochsner
  • Publisher : Oxford University Press
  • Release Date : 2013-11-13
  • Genre : Psychology
  • Pages : 231
  • ISBN : 9780199700677

The Oxford Handbook of Cognitive Neuroscience Book Description :

Cognitive neuroscience has grown into a rich and complex discipline, some 35 years after the term was coined. Given the great expanse of the field, an inclusive and authoritative resource such as this handbook is needed for examining the current state-of-the-science in cognitive neuroscience. Spread across two volumes, the 59 chapters included in this handbook systemically survey all aspects of cognitive neuroscience, spanning perception, attention, memory, language, emotion, self and social cognition, higher cognitive functions, and clinical applications. Additional chapters cover topics ranging from the use of top-down cognitive processes in visual perception to the representation and recognition of objects and spatial relations; attention and its relationship to action as well as visual motor control; language and related core abilities including semantics, speech perception and production, the distinction between linguistic competence and performance, and the capacity for written language. Special coverage is also given to chapters describing the psychopharmacology of cognition, the theory of mind, the neuroscience underlying the regulation of emotion, and neuropsychological and neuroimaging evidence that supports the special status of self-knowledge in memory. This handbook provides a comprehensive compendium of research on cognitive neuroscience that will be widely accessible to students, researchers, and professionals working in this exciting and growing field.

Multisensory Processes Book PDF

Multisensory Processes

  • Author : Adrian K. C. Lee
  • Publisher : Springer
  • Release Date : 2019-03-08
  • Genre : Medical
  • Pages : 272
  • ISBN : 9783030104610

Multisensory Processes Book Description :

Auditory behavior, perception, and cognition are all shaped by information from other sensory systems. This volume examines this multi-sensory view of auditory function at levels of analysis ranging from the single neuron to neuroimaging in human clinical populations. Visual Influence on Auditory Perception Adrian K.C. Lee and Mark T. Wallace Cue Combination within a Bayesian Framework David Alais and David Burr Toward a Model of Auditory-Visual Speech Intelligibility Ken W. Grant and Joshua G. W. Bernstein An Object-based Interpretation of Audiovisual Processing Adrian K.C. Lee, Ross K. Maddox, and Jennifer K. Bizley Hearing in a “Moving” Visual World: Coordinate Transformations Along the Auditory Pathway Shawn M. Willett, Jennifer M. Groh, Ross K. Maddox Multisensory Processing in the Auditory Cortex Andrew J. King, Amy Hammond-Kenny, Fernando R. Nodal Audiovisual Integration in the Primate Prefrontal Cortex Bethany Plakke and Lizabeth M. Romanski Using Multisensory Integration to Understand Human Auditory Cortex Michael S. Beauchamp Combining Voice and Face Content in the Primate Temporal Lobe Catherine Perrodin and Christopher I. Petkov Neural Network Dynamics and Audiovisual Integration Julian Keil and Daniel Senkowski Cross-Modal Learning in the Auditory System Patrick Bruns and Brigitte Röder Multisensory Processing Differences in Individuals with Autism Spectrum Disorder Sarah H. Baum Miller, Mark T. Wallace Adrian K.C. Lee is Associate Professor in the Department of Speech & Hearing Sciences and the Institute for Learning and Brain Sciences at the University of Washington, Seattle Mark T. Wallace is the Louise B McGavock Endowed Chair and Professor in the Departments of Hearing and Speech Sciences, Psychiatry, Psychology and Director of the Vanderbilt Brain Institute at Vanderbilt University, Nashville Allison B. Coffin is Associate Professor in the Department of Integrative Physiology and Neuroscience at Washington State University, Vancouver, WA Arth

Dissertation Abstracts International Book PDF

Dissertation Abstracts International

  • Author : Anonim
  • Publisher : Unknown
  • Release Date : 1981-07
  • Genre : Dissertations, Academic
  • Pages : 231
  • ISBN : UVA:X004507750

Dissertation Abstracts International Book Description :

American Doctoral Dissertations Book PDF

American Doctoral Dissertations

  • Author : Anonim
  • Publisher : Unknown
  • Release Date : 1967
  • Genre : Dissertation abstracts
  • Pages : 231
  • ISBN : STANFORD:36105015411619

American Doctoral Dissertations Book Description :

Vocational Rehabilitation Index Book PDF

Vocational Rehabilitation Index

  • Author : Anonim
  • Publisher : Unknown
  • Release Date : 1977
  • Genre : Vocational rehabilitation
  • Pages : 231
  • ISBN : UOM:39015016221890

Vocational Rehabilitation Index Book Description :