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October, 2006
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Hearing Loss: A general term for the complete or partial loss of the ability to hear from one or both ears.
 JoVE Behavior

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss

1Department of Integrative Physiology, National Institute for Physiological Sciences, 2Department of Otolaryngology, Head and Neck Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, 3Department of Otorhinolaryngology, Kansai Rosai Hospital, 4Institute for Biomagnetism and Biosignalanalysis, University of Muenster, 5Institute for Epidemiology and Social Medicine, University of Muenster, 6Sokendai Graduate University for Advanced Studies

JoVE 53264

 Science Education: Essentials of Physical Examinations II

Ear Exam

JoVE Science Education

Source: Richard Glickman-Simon, MD, Assistant Professor, Department of Public Health and Community Medicine, Tufts University School of Medicine, MA

This video describes the examination of the ear, beginning with a review of its surface and interior anatomy (Figure 1). The cartilaginous auricle consists of the helix, antihelix, earlobe, and tragus. The mastoid process is positioned just behind the earlobe. The slightly curving auditory canal ends at the tympanic membrane, which transmits sound waves collected by the external ear to the air-filled middle ear. The Eustachian tube connects to the middle ear with the nasopharynx. Vibrations of the tympanic membrane transmit to the three connected ossicles of the middle ear (the malleus, incus, and stapes). The vibrations are transformed into electrical signals in the inner ear, and then carried to the brain by the cochlear nerve. Hearing, therefore, comprises a conductive phase that involves the external and middle ear, and a sensorineural phase that involves the inner ear and cochlear nerve. The auditory canal and the tympanic membrane are examined with the otoscope, a handheld instrument with a light source, a magnifier, and a disposable cone-shaped speculum. It is important to be familiar with the tympanic membrane landmarks (

 JoVE Neuroscience

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

 JoVE 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

 JoVE Medicine

Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation

1Anesthesia Center for Critical Care Research of the Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, 2Cardiovascular Research Center and Cardiology Division of the Department of Medicine, Massachusetts General Hospital, 3Cardiovascular Division, Brigham and Women's Hospital, 4Harvard Medical School, 5Department of Anesthesiology, Uniklinik RWTH Aachen, RWTH Aachen University, 6Center for Immunology and Inflammatory Diseases and the Division of Rheumatology, Allergy, and Immunology of the Department of Medicine, Massachusetts General Hospital

JoVE 54017

 JoVE Neuroscience

Extracellular Recording of Neuronal Activity Combined with Microiontophoretic Application of Neuroactive Substances in Awake Mice

1Auditory Neuroscience Laboratory, Institute of Neuroscience of Castilla y León, University of Salamanca, 2Neural Systems Laboratory, Institute for Systems Research, University of Maryland, 3Medical Research Council Institute of Hearing Research, 4Department of Cell Biology and Pathology, Faculty of Medicine, University of Salamanca

JoVE 53914

 JoVE Behavior

Flat-floored Air-lifted Platform: A New Method for Combining Behavior with Microscopy or Electrophysiology on Awake Freely Moving Rodents

1Neuroscience Center, University of Helsinki, 2Neurotar LTD, 3A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 4Laboratory Animal Center, University of Helsinki

JoVE 51869

 JoVE Behavior

Simultaneous Scalp Electroencephalography (EEG), Electromyography (EMG), and Whole-body Segmental Inertial Recording for Multi-modal Neural Decoding

1Functional and Applied Biomechanics Group, National Institutes of Health, 2Laboratory for Non-invasive Brain-Machine Interface Systems, Department of Electrical and Computer Engineering, University of Houston, 3Department of Health and Human Performance, University of Houston, 4Center for Neuromotor & Biomechanics Research, University of Houston, 5Department of Biomedical Engineering, University of Houston

JoVE 50602

 JoVE Medicine

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model

1The Markey Cancer Center, University of Kentucky College of Medicine, 2Graduate Center for Toxicology, University of Kentucky College of Medicine, 3Department of Molecular and Biomedical Pharmacology, University of Kentucky College of Medicine, 4Department of Pediatrics, University of Kentucky College of Medicine

JoVE 50670

 JoVE Medicine

Techniques for Processing Eyes Implanted with a Retinal Prosthesis for Localized Histopathological Analysis: Part 2 Epiretinal Implants with Retinal Tacks

1Bionics Institute, 2Department of Pathology, The University of Melbourne, 3Cochlear Limited, 4Department of Anatomical Pathology, St Vincent's Hospital Melbourne, 5Medical Bionics Department, The University of Melbourne

JoVE 52348

 JoVE Neuroscience

Recording Temperature-induced Neuronal Activity through Monitoring Calcium Changes in the Olfactory Bulb of Xenopus laevis

1Institute of Neurophysiology and Cellular Biophysics, Georg-August-Universität Göttingen, 2Center for Nanoscale Microscopy and Molecular Physiology of the Brain, Georg-August-Universität Göttingen, 3DFG Excellence Cluster 171, Georg-August-Universität Göttingen, 4German Hearing Center Hannover

JoVE 54108

 JoVE Neuroscience

Isolating Nasal Olfactory Stem Cells from Rodents or Humans

1NICN, Aix Marseille University, 2LNPM, Aix Marseille University, 3ENT Department, Aix Marseille University, 4Gene expression Laboratory, The Salk Institute for Biological Studies, 5Laboratory of Speech and Language, Aix Marseille University, 6Centre d'Investigations Cliniques en Biothérapie, Aix Marseille University

JoVE 2762

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