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Multisensory Perception And Action: Psychophysics, Neural Mechanisms, And Applications

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889193813 Year: Pages: 174 DOI: 10.3389/978-2-88919-381-3 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Science (General)
Added to DOAB on : 2015-12-03 13:02:24
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Our senses are not separated. Information received from one sensory modality may be linked with, or distorted by information provided from another modality, such as in the ventriloquism illusion and experiences of crossmodal correspondence. Scientific interest in how we integrate multisensory information and how we interact with a multisensory world has increased dramatically over the last two decades, as evidenced by an exponential growth of relevant studies using behavioral and/or neuro-scientific approaches to investigate multisensory integration and the underlying brain mechanisms. This work has revealed that the brain integrates information across senses in a statistically optimal manner; also, some key multisensory brain areas, such as the superior colliculus, have been identified. However, many questions remain unresolved. For example, at what age do we develop optimal multisensory integration? How does the brain 'know' which stimuli to combine, and which to segregate? What are the principles that govern crossmodal interactions? Does multisensory integration rely solely on the variability of sensory information? Do primary sensory cortices also contribute to multisensory integration? How does multisensory integration influence our sensorimotor interactions? To take stock of the most recent developments, this Research Topic aims to provide a broad scope of research on multisensory perception and action from different perspectives/approaches and disciplines, including behavioral and neuro-sciences, computational/mathematical modeling, and engineering science. Specifically, the Research Topic will focus on the following topics: 1. Functional and behavioral mechanisms of multisensory perception 2. Neural mechanisms of multisensory coding 3. Multisensory perception and sensorimotor interaction 4. Multisensory applications

Toward a Unified View of the Speed-Accuracy Trade-Off: Behaviour, Neurophysiology and Modelling

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889197569 Year: Pages: 160 DOI: 10.3389/978-2-88919-756-9 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Science (General)
Added to DOAB on : 2016-04-07 11:22:02
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Everyone is familiar with the speed-accuracy trade-off (SAT). To make good choices, we need to balance the conflicting demands of fast and accurate decision making. After all, hasty decisions often lead to poor choices, but accurate decisions may be useless if they take too long. This notion is intuitive because it reflects a fundamental aspect of cognition: not only do we deliberate over the evidence for decisions, but we can control that deliberative process. This control raises many questions for the study of choice behaviour and executive function. For example, how do we figure out the appropriate balance between speed and accuracy on a given task? How do we impose that balance on our decisions, and what is its neural basis? Researchers have addressed these and related questions for decades, using a variety of methods and offering answers at different levels of abstraction. Given this diverse methodology, our aim is to provide a unified view of the SAT. Extensive analysis of choice behaviour suggests that we make decisions by accumulating evidence until some criterion is reached. Thus, adjusting the criterion controls how long we accumulate evidence and therefore the speed and accuracy of decisions. This simple framework provides the platform for our unified view. In the pages that follow, leading experts in decision neuroscience consider the history of SAT research, strategies for determining the optimal balance between speed and accuracy, conditions under which this seemingly ubiquitous phenomenon breaks down, and the neural mechanisms that may implement the computations of our unifying framework.

Neurofeedback in ADHD

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889197224 Year: Pages: 170 DOI: 10.3389/978-2-88919-722-4 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Science (General)
Added to DOAB on : 2016-04-07 11:22:02
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EEG-based neurofeedback is used as a treatment approach in attention-deficit / hyperactivity disorder (ADHD), a clinically and pathophysiologically heterogeneous child psychiatric disorder. There is increasing evidence for specific effects of neurofeedback when applying 'standard' protocols (slow cortical potentials, theta/beta, sensorimotor rhythm). Knowledge about underlying mechanisms and moderating variables is increasing. Nevertheless, further well-controlled and conducted trials are needed to answer open questions concerning optimisation and individualisation of neurofeedback. Further improvements may develop with new methods and technical developments (e.g., tomographic neurofeedback) and new concepts (integrated ADHD treatment). This Frontiers Research Topic comprising 14 articles intends to answer the following questions concerning neurofeedback in ADHD:• How efficacious is neurofeedback?• What is the rationale of applying a certain neurofeedback protocol in ADHD?• What are central mechanisms and which moderating variables may affect training and treatment outcome?• How to optimise treatment? What are new developments and which benefits may be expected?Aspects of learning theory are also stressed dissociating 'neurofeedback as a treatment' and 'neurofeedback as entertainment'. In the Editorial, this crucial aspect is compared to the way you read (and study) a scientific book versus reading a thriller for leisure. In this respect: Enjoy this Research Topic, study and apply it in practice, unless you read it for entertainment purposes!

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