Author: Simon B. LaughlinPublisher:
ISBN: 9780948601224
Category : Color vision
Languages : en
Pages : 322
Book Description
Principles of Sensory Coding and Processing
Author: Simon B. LaughlinPublisher:
ISBN: 9780948601224
Category : Color vision
Languages : en
Pages : 322
Book Description
Principles of Sensory Coding and Processing
Author: Company of BiologistsPublisher:
ISBN:
Category :
Languages : en
Pages : 322
Book Description
Coding Properties in Invertebrate Sensory Systems
Author: Sylvia AntonPublisher: Frontiers Media SA
ISBN: 2889451062
Category :
Languages : en
Pages : 229
Book Description
Animals rely on sensory input from their environment for survival and reproduction. Depending on the importance of a signal for a given species, accuracy of sensory coding might vary from pure detection up to precise coding of intensity, quality and temporal features of the signal. Highly sophisticated sense organs and related central nervous sensory pathways can be of utmost importance for animals in a complex environment and when using advanced communication systems. In sensory systems different anatomical and physiological features have evolved to optimally encode behaviourally relevant signals at the level of sense organs and central processing. The wide range of organizational complexity, in combination with their relatively simple and accessible nervous systems, makes invertebrates excellent models to study general sensory coding principles. The contributions to this e-book illustrate on one hand particular features of specific sensory systems, and on the other hand indicate not only common features of sensory coding across invertebrate phyla, but also similar processing principles of complex stimuli between different sensory modalities. The chapters show that the extraction of behaviourally relevant signals from all environmental stimuli, as well as the detection of low intensity signals and the analysis of temporal features can be similar across sensory modalities, including olfaction, vision, mechanoreception, and heat perception.
Principles of Neural Coding
Author: Rodrigo Quian QuirogaPublisher: CRC Press
ISBN: 1439853304
Category : Medical
Languages : en
Pages : 643
Book Description
Understanding how populations of neurons encode information is the challenge faced by researchers in the field of neural coding. Focusing on the many mysteries and marvels of the mind has prompted a prominent team of experts in the field to put their heads together and fire up a book on the subject. Simply titled Principles of Neural Coding, this book covers the complexities of this discipline. It centers on some of the major developments in this area and presents a complete assessment of how neurons in the brain encode information. The book collaborators contribute various chapters that describe results in different systems (visual, auditory, somatosensory perception, etc.) and different species (monkeys, rats, humans, etc). Concentrating on the recording and analysis of the firing of single and multiple neurons, and the analysis and recording of other integrative measures of network activity and network states—such as local field potentials or current source densities—is the basis of the introductory chapters. Provides a comprehensive and interdisciplinary approach Describes topics of interest to a wide range of researchers The book then moves forward with the description of the principles of neural coding for different functions and in different species and concludes with theoretical and modeling works describing how information processing functions are implemented. The text not only contains the most important experimental findings, but gives an overview of the main methodological aspects for studying neural coding. In addition, the book describes alternative approaches based on simulations with neural networks and in silico modeling in this highly interdisciplinary topic. It can serve as an important reference to students and professionals.
Principles of Sensory Coding and Processing
Author: Company of Biologists. CambridgePublisher:
ISBN:
Category :
Languages : en
Pages : 322
Book Description
Physical Principles Underlying Sensory Processing and Computation
Author: Fred RiekeCoding Properties in Invertebrate Sensory Systems
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Animals rely on sensory input from their environment for survival and reproduction. Depending on the importance of a signal for a given species, accuracy of sensory coding might vary from pure detection up to precise coding of intensity, quality and temporal features of the signal. Highly sophisticated sense organs and related central nervous sensory pathways can be of utmost importance for animals in a complex environment and when using advanced communication systems. In sensory systems different anatomical and physiological features have evolved to optimally encode behaviourally relevant signals at the level of sense organs and central processing. The wide range of organizational complexity, in combination with their relatively simple and accessible nervous systems, makes invertebrates excellent models to study general sensory coding principles. The contributions to this e-book illustrate on one hand particular features of specific sensory systems, and on the other hand indicate not only common features of sensory coding across invertebrate phyla, but also similar processing principles of complex stimuli between different sensory modalities. The chapters show that the extraction of behaviourally relevant signals from all environmental stimuli, as well as the detection of low intensity signals and the analysis of temporal features can be similar across sensory modalities, including olfaction, vision, mechanoreception, and heat perception.
An Investigation of Sensory Coding Principles Using Advanced Statistical Techniques
Author: Frédéric Edouard TheunissenPublisher:
ISBN:
Category :
Languages : en
Pages : 434
Book Description
An Investigation of Sensory Coding Principles Using Advances Statistical Techniques
Author: Frédéric Edouard TheunissenPublisher:
ISBN:
Category :
Languages : en
Pages : 197
Book Description
Neural Coding and Organization Principles in the Drosophila Olfactory System
Author: Haoyang RongPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Sensory systems receive and process external stimuli to allow an organism to perceive and react to the environment. How is sensory information subsequently represented, transformed, and interpreted in the neural system? In this dissertation, I have investigated this fundamental question using the fruit fly (Drosophila melanogaster) olfactory system.Chemical cues are transduced into neural signals in the insect antenna by the olfactory receptor neurons (ORNs). The ORNs send their axons to the antennal lobe (AL), with each ORN type innervating a specific neuropil (glomerulus), where they synapse onto excitatory and inhibitory projection neurons (ePNs and iPNs). The ePNs project their axons to the 3rd order stages, the calyx (CL) and lateral horn (LH). On the other hand, the iPNs only innervate the LH. In this dissertation, I first examined how well the peripheral neural activities evoked by an odorant could predict the final behavioral output. As the stimulus intensity increases, a fly's preference for some odorants switch from attraction to aversion. Behavior assay suggested this phenomenon may help the fly evade harmful environment. Our results indicate that at the level of ORNs, increases in stimulus intensity could result in oscillatory extracellular field potentials that arise entirely due to abrupt changes in cell excitability. Notably, combining the activity of a few ORNs was sufficient to predict intensity-dependent preference changes with odor intensity. How is the sensory input organized in the downstream neural circuit, the insect antennal lobe? Odor-evoked signals from sensory neurons (ORNs) triggered neural responses that were patterned over space and time in cholinergic ePNs and GABAergic iPNs within the antennal lobe. The dendritic-axonal (I/O) response mapping was complex and diverse, and the axonal organization was region-specific (mushroom body vs. lateral horn). In the lateral horn, feed-forward excitatory and inhibitory axonal projections matched 'odor tuning' in a stereotyped, dorsal-lateral locus, but mismatched in most other locations. In the temporal dimension, ORN, ePN, and iPN odor-evoked responses had similar encoding features, such as information refinement over time and divergent ON and OFF responses. Notably, analogous spatial and temporal coding principles were observed in all flies, and the latter emerged from idiosyncratic neural processing approaches. In sum, these results provide key insights necessary for understanding how sensory information is organized along spatial and temporal dimensions.