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Hair Cells, Auditory: Sensory cells in the organ of Corti, characterized by their apical stereocilia (hair-like projections). The inner and outer hair cells, as defined by their proximity to the core of spongy bone (the modiolus), change morphologically along the Cochlea. Towards the cochlear apex, the length of hair cell bodies and their apical Stereocilia increase, allowing differential responses to various frequencies of sound.

Auditory Brainstem Response and Outer Hair Cell Whole-cell Patch Clamp Recording in Postnatal Rats

1Department of Physiology, School of Basic Medical Sciences, Southern Medical University, 2School of Basic Medical Sciences, Guizhou Medical University, 3Department of Laboratory Medicines, Guangzhou General Hospital of Guangzhou Military Region, Southern Medical University, 4Experiment Teaching Center, School of Basic Medical Sciences, Southern Medical University

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JoVE 56678


 JoVE In-Press

A Comparative Study of Drug Delivery Methods Targeted to the Mouse Inner Ear: Bullostomy Versus Transtympanic Injection

1Instituto de Investigaciones Biomédicas (IIBm) Alberto Sols CSIC-UAM, 2Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), 3Instituto de Investigación Sanitaria La Paz (IdiPAZ), 4Facultad de Veterinaria, Universidad Complutense de Madrid, 5Departmento de Otorrino laringología, Hospital Universitario La Paz

JoVE 54951


 Biology

Optogenetic Stimulation of the Auditory Nerve

1InnerEarLab, Department of Otolaryngology, University Medical Center Goettingen, 2Bernstein Focus for Neurotechnology, University of Goettingen, 3Auditory Systems Physiology Group, Department of Otolaryngology, University Medical Center Goettingen, 4Center for Nanoscale Microscopy and Molecular Physiology of the Brain, University of Goettingen, 5Department of Chemical, Electronic, and Biomedical Engineering, University of Guanajuato

JoVE 52069


 Neuroscience

A Behavioral Assay for Mechanosensation of MARCM-based Clones in Drosophila melanogaster

1Department of Biology, College of the Holy Cross, 2School of Medicine, Georgetown University, 3Department of Biochemistry, Giesel School of Medicine, Dartmouth College, 4School of Medicine, Tufts University, 5Transgenomic Inc., 6Department of Molecular, Cell and Cancer Biology, UMass Medical School

JoVE 53537


 Neuroscience

Using Fiberless, Wearable fNIRS to Monitor Brain Activity in Real-world Cognitive Tasks

1Department of Medical Physics and Biomedical Engineering, Malet Place Engineering Building, University College London, 2Infrared Imaging Lab, Institute for Advanced Biomedical Technology (ITAB), Department of Neuroscience, Imaging and Clinical Sciences, University of Chieti-Pescara, 3Institute of Cognitive Neuroscience, Alexandra House, University College London

JoVE 53336


 Behavior

Discovering Middle Ear Anatomy by Transcanal Endoscopic Ear Surgery: A Dissection Manual

1Department of Otorhinolaryngology, Head and Neck Surgery, Inselspital, Bern University Hospital, University of Bern, 2Department of Otorhinolaryngology, Head & Neck Surgery, University Hospital of Modena, 3Department of Otorhinolaryngology, Head & Neck Surgery, University Hospital of Verona, 4Artificial Hearing Research, Artorg Center for Biomedical Engineering, University of Bern

Video Coming Soon

JoVE 56390


 JoVE In-Press

Simultaneous Detection of c-Fos Activation from Mesolimbic and Mesocortical Dopamine Reward Sites Following Naive Sugar and Fat Ingestion in Rats

1Behavioral and Cognitive Neuroscience Cluster, Psychology Doctoral Program, The Graduate Center, CUNY, New York, NY, 2Department of Psychology, Queens College, CUNY, Flushing, NY, 3Behavioral and Cognitive Neuroscience Cluster, Psychology Doctoral Program, The Graduate Center, CUNY, Flushing, NY

JoVE 53897


 Neuroscience

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Functional Imaging of Auditory Cortex in Adult Cats using High-field fMRI

1Department of Physiology and Pharmacology, University of Western Ontario, 2Department of Psychology, University of Western Ontario, 3Department of Medical Biophysics, University of Western Ontario, 4Brain and Mind Institute, University of Western Ontario, 5Centre for Functional and Metabolic Mapping, Robarts Research Institute, University of Western Ontario, 6Cerebral Systems Laboratory, University of Western Ontario, 7National Centre for Audiology, University of Western Ontario

JoVE 50872


 Neuroscience

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Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)

1Communication Sciences and Disorders, MGH Institute of Health Professions, 2Speech and Hearing Science, Arizona State University, 3Speech, Language, and Hearing Sciences, University of Arizona, 4Department of Psychological Sciences, University of Missouri-Columbia, 5Sanford School of Social and Family Dynamics, Arizona State University, 6School of Social and Behavioral Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University - West

JoVE 55121


 Behavior

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Decoding Auditory Imagery with Multivoxel Pattern Analysis

JoVE 10267

Source: Laboratories of Jonas T. Kaplan and Sarah I. Gimbel—University of Southern California

Imagine the sound of a bell ringing. What is happening in the brain when we conjure up a sound like this in the "mind's ear?" There is growing evidence that the brain uses the same mechanisms for imagination that it uses for perception.1 For example, when imagining visual images, the visual cortex becomes activated, and when imagining sounds, the auditory cortex is engaged. However, to what extent are these activations of sensory cortices specific to the content of our imaginations? One technique that can help to answer this question is multivoxel pattern analysis (MPVA), in which functional brain images are analyzed using machine-learning techniques.2-3 In an MPVA experiment, we train a machine-learning algorithm to distinguish among the various patterns of activity evoked by different stimuli. For example, we might ask if imagining the sound of a bell produces different patterns of activity in auditory cortex compared with imagining the sound of a chainsaw, or the sound of a violin. If our classifier learns to tell apart the brain activity patterns produced by these three stimuli, then we can conclude that the auditory cortex is activated in a distinct


 Neuropsychology

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