The Journal of Visualized Experiments (JoVE) is a peer reviewed, PubMed-indexed video journal. Our mission is to increase the productivity of scientific research.

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Learning: Relatively permanent change in behavior that is the result of past experience or practice. The concept includes the acquisition of knowledge.
 JoVE Neuroscience

Low-stress Route Learning Using the Lashley III Maze in Mice


JoVE 1786 5/22/2010

1Department of Chemistry, Pennsylvania State University, 2Center for Developmental and Health Genetics, Pennsylvania State University, 3Department of Veterinary and Biomedical Sciences, Pennsylvania State University, 4Huck Institute of the Life Sciences, Pennsylvania State University, 5California NanoSystems Institute, University of California, Los Angeles, 6Semel Institute of Neuroscience and Human Behavior, University of California, Los Angeles

The Lashley III maze is a route-learning task that does not rely on aversive stimuli or visual cues. It is thus a highly attractive option for evaluating learning and memory, especially in aging mice or otherwise where stress is a consideration.

 JoVE Neuroscience

C. elegans Positive Butanone Learning, Short-term, and Long-term Associative Memory Assays


JoVE 2490 3/11/2011

1Department of Molecular Biology, Lewis-Sigler Institute for Integrative Genomics, Princeton University, 2Lewis-Sigler Institute for Integrative Genomics, Princeton University

Here we describe methods to test C. elegans associative learning and short- and long-term associative memory. These population assays employ the worms abilities to chemotax toward volatile odorants, and form positive associations upon pairing food with the chemoattractant butanone. Increasing the number of conditioning periods induces long-term memory.

 JoVE Neuroscience

Behavioural Pharmacology in Classical Conditioning of the Proboscis Extension Response in Honeybees (Apis mellifera)


JoVE 2282 1/24/2011

Fachbereich Bio/Chem/Pharm, Institut für Biologie – Neurobiologie, Freie Universität Berlin

We demonstrate how to implement a behavioral pharmacology method in an appetitive olfactory conditioning paradigm in honeybees (Apis mellifera) by systemic application of drugs. This method allows investigation of the mechanisms underlying learning and memory formation in a simple and reliable way.

 JoVE Neuroscience

Appetitive Associative Olfactory Learning in Drosophila Larvae


JoVE 4334 2/18/2013

1Department of Biology, University of Konstanz, 2Department of Biology, University of Fribourg

Drosophila larvae are able to associate odor stimuli with gustatory reward. Here we describe a simple behavioral paradigm that allows the analysis of appetitive associative olfactory learning.

 JoVE Clinical and Translational Medicine

Portable Intermodal Preferential Looking (IPL): Investigating Language Comprehension in Typically Developing Toddlers and Young Children with Autism


JoVE 4331 12/14/2012

Department of Psychology, University of Connecticut

A reliable home-based way to assess the language comprehension of very young typically developing children, as well as those with autism, is described. The method analyzes children's eye gaze while viewing side-by-side images but hearing an audio that matches only one image. Stimuli are designed with young participants in mind.

 JoVE Clinical and Translational Medicine

Quantifying Cognitive Decrements Caused by Cranial Radiotherapy


JoVE 3108 10/18/2011

Department of Radiation Oncology, University of California Irvine

Cognitive impairment resulting from the radiotherapeutic management of brain tumors represents a clinically intractable condition that adversely impacts quality of life. The capability to critically evaluate potential interventions for ameliorating radiation-induced cognitive decrements ultimately depends on the capability to undertake rigorous quantitative assessments of cognition.

 JoVE Clinical and Translational Medicine

Movement Retraining using Real-time Feedback of Performance


JoVE 50182 1/17/2013

Department of Physical Therapy, University of British Columbia

Retraining abnormal movement patterns following injury or disease is a key component of physical rehabilitation. Recent advances in technology have permitted accurate assessment of movement during a variety of tasks, with near instantaneous quantification of results. This provides new opportunities for modification of faulty movement patterns in real time.

 JoVE Neuroscience

Tactile Conditioning And Movement Analysis Of Antennal Sampling Strategies In Honey Bees (Apis mellifera L.)


JoVE 50179 12/12/2012

Biological Cybernetics, CITEC - Cognitive Interaction Technology - Center of Excellence, Bielefeld University

In this protocol we show how to condition harnessed honey bees to tactile stimuli and introduce a 2D motion capture technique for analyzing the kinematics of fine-scale antennal sampling pattern.

 JoVE Clinical and Translational Medicine

Automated Midline Shift and Intracranial Pressure Estimation based on Brain CT Images


JoVE 3871 4/13/2013

1Department of Biostatistics, Virginia Commonwealth University, 2Virginia Commonwealth University Reanimation Engineering Science (VCURES) Center, 3Department of Computer Science, Virginia Commonwealth University, 4Department of Radiology, Virginia Commonwealth University, 5Department of Emergency Medicine, Virginia Commonwealth University

An automated midline shift estimation and intracranial pressure (ICP) pre-screening system based on computed tomography (CT) images for patients with traumatic brain injury (TBI) is proposed using image processing and machine learning techniques.

 JoVE Neuroscience

Human Fear Conditioning Conducted in Full Immersion 3-Dimensional Virtual Reality


JoVE 1993 8/09/2010

1Center for Cognitive Neuroscience, Duke University, 2Pratt School of Engineering, Duke University

Classical fear conditioning paradigm was adapted for human participants in a fully immersive virtual reality setting. Using a discrimination paradigm, conditioned fear, cue and context memory retention, and extinction was measured with skin conductance response to dynamic virtual snakes and spiders (the conditioned stimuli) in two distinct virtual contexts.

 JoVE Neuroscience

Creating Objects and Object Categories for Studying Perception and Perceptual Learning


JoVE 3358 11/02/2012

1Brain and Behavior Discovery Institute, Georgia Health Sciences University, 2Vision Discovery Institute, Georgia Health Sciences University, 3Department of Opthalmology, Georgia Health Sciences University, 4Intelligent Systems Laboratory, Palo Alto Research Center, 5Pattern Recognition Systems, Palo Alto Research Center, 6Department of Psychology, University of Minnesota

We describe a novel methodology for creating naturalistic 3-D objects and object categories with precisely defined feature variations. We use simulations of the biological processes of morphogenesis and phylogenesis to create novel, naturalistic virtual 3-D objects and object categories that can then be rendered as visual images or haptic objects.

 JoVE General

Regular Care and Maintenance of a Zebrafish (Danio rerio) Laboratory: An Introduction


JoVE 4196 11/18/2012

1Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical sciences, Edith Cowan University, 2Centre for Clinical Research in Neuropsychiatry, Graylands Hospital, University of Western Australia, 3McCusker Alzheimer's Research foundation, 4School of Medicine and Pharmacology, University of Western Australia, 5Department of Molecular and Biomedical Sciences, University of Adelaide, 6School of Biomedical Sciences, Curtin University of Technology, 7School of Psychiatry and Clinical Neurosciences, University of Western Australia

This protocol outlines regular maintenance and care to maintain optimal conditions for zebrafish husbandry. The video illustrates the protocol for system maintenance, regular housing, feeding, breeding, and raising of zebrafish larvae.

 JoVE Neuroscience

Using MazeSuite and Functional Near Infrared Spectroscopy to Study Learning in Spatial Navigation


JoVE 3443 10/08/2011

1School of Biomedical Engineering, Science and Health Systems, Drexel University, 2College of Nursing and Health Professions, Drexel University

MazeSuite is a complete toolset to prepare, present and analyze navigational and spatial experiments. Functional near-infrared spectroscopy (fNIR) is an optical brain imaging technique that enables noninvasive and portable monitoring of cerebral blood oxygenation changes. This paper summarizes collective use of MazeSuite and fNIR within a cognitive processing learning paradigm.

 JoVE Neuroscience

A Lightweight, Headphones-based System for Manipulating Auditory Feedback in Songbirds


JoVE 50027 11/26/2012

1Department of Biology, Emory University, 2Neuroscience Graduate Program, Emory University, 3Program in Neuroscience and Behavioral Biology, Emory University

We describe the design and assembly of miniaturized headphones suitable for replacing a songbird’s natural auditory feedback with a manipulated acoustic signal. Online sound processing hardware is used to manipulate song output, introduce real-time errors in auditory feedback via the headphones, and drive vocal motor learning.

 JoVE Application Notes

Pre-Roll Demo (Standard) - ADVERTISEMENT


JoVE 4364 1/17/2012

For both scientific and animal welfare reasons, training in basic surgical concepts and techniques should be undertaken before ever seeking to perform surgery on a rodent. Students, post-doctoral scholars, and others interested in performing surgery on rodents as part of a research protocol may not have had formal surgical training as part of their required coursework. Surgery itself is a technical skill, and one that will improve with practice. The principles of aseptic technique, however, often remain unexplained or untaught. For most new surgeons, this vital information is presented in piecemeal fashion or learned on the job, neither of which is ideal. It may also make learning how to perform a particular surgery difficult, as the new surgeon is learning both a surgical technique and the principles of asepsis at the same time. This article summarizes and makes recommendations for basic surgical skills and techniques necessary for successful rodent surgery. This article is designed to supplement hands-on training by the user's institution.

 JoVE Application Notes

Pre-Roll Demo (Premium) - ADVERTISEMENT


JoVE 4365 1/01/2012

For both scientific and animal welfare reasons, training in basic surgical concepts and techniques should be undertaken before ever seeking to perform surgery on a rodent. Students, post-doctoral scholars, and others interested in performing surgery on rodents as part of a research protocol may not have had formal surgical training as part of their required coursework. Surgery itself is a technical skill, and one that will improve with practice. The principles of aseptic technique, however, often remain unexplained or untaught. For most new surgeons, this vital information is presented in piecemeal fashion or learned on the job, neither of which is ideal. It may also make learning how to perform a particular surgery difficult, as the new surgeon is learning both a surgical technique and the principles of asepsis at the same time. This article summarizes and makes recommendations for basic surgical skills and techniques necessary for successful rodent surgery. This article is designed to supplement hands-on training by the user's institution.

 JoVE Clinical and Translational Medicine

Real-time fMRI Biofeedback Targeting the Orbitofrontal Cortex for Contamination Anxiety


JoVE 3535 1/20/2012

1Department of Diagnostic Radiology, Yale University School of Medicine, 2Department of Psychiatry, Yale University School of Medicine, 3Yale Child Study Center, Yale University School of Medicine, 4Interdepartmental Neuroscience Program, Yale University School of Medicine

Here we present a method for training people to control a brain area involved in contamination anxiety and for probing the relationship between contamination anxiety and brain connectivity patterns.

 JoVE Neuroscience

T-maze Forced Alternation and Left-right Discrimination Tasks for Assessing Working and Reference Memory in Mice


JoVE 3300 2/26/2012

1Division of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, 2Japan Science and Technology Agency, Core Research for Evolutionary Science and Technology (CREST), 3Center for Genetic Analysis of Behavior, National Institute for Physiological Sciences, National Institutes of Natural Sciences

This article presents the protocol of T-maze tests using a modified automated apparatus for assessing the learning and memory functions in mice.

 JoVE General

The use of Biofeedback in Clinical Virtual Reality: The INTREPID Project


JoVE 1554 11/12/2009

1Applied Technology for Neuro-Psychology Lab, Istituto Auxologico Italiano, 2Psychology Department, Università Cattolica del Sacro Cuore

The Project on Virtual Reality Intelligent Multi-sensor System for the Treatment of Anxiety-related Disorders (INTREPID) is aimed at developing a multi-sensor context-aware virtual reality system for the treatment of anxiety-related disorders.

 JoVE Neuroscience

A Low Cost Setup for Behavioral Audiometry in Rodents


JoVE 4433 10/16/2012

Experimental Otolaryngology, University of Erlangen-Nuremberg

A fast and inexpensive method for the behavioral determination of hearing parameters like hearing thresholds, hearing impairments or phantom perceptions (subjective tinnitus) is described. It uses pre-pulse inhibition of the acoustic startle response and can be easily implemented in a personal computer using a programmable AD/DA-converter and a piezo sensor.

 JoVE Neuroscience

Investigating the Neural Mechanisms of Aware and Unaware Fear Memory with fMRI


JoVE 3083 10/06/2011

Department of Psychology, University of Alabama at Birmingham

A methodology to investigate the neural mechanisms that support aware and unaware memory processes during fear conditioning is described. This method monitors blood oxygen level dependent (BOLD) functional magnetic resonance imaging, skin conductance response, and unconditioned stimulus expectancy during Pavlovian fear conditioning to assess the neural correlates of distinct memory processes.

 JoVE Neuroscience

Extinction Training During the Reconsolidation Window Prevents Recovery of Fear


JoVE 3893 8/24/2012

1Departments of Psychiatry and Neuroscience, and Friedman Brain Institute, Mt. Sinai School of Medicine, 2Department of Psychology, New York University, 3Department of Psychology and Center for Neural Science, New York University

Conditioned fear can be diminished through an inhibitory process called extinction, but can resurface under conditions such as the passage of time or exposure to stress. Our protocol presents a novel way of preventing fear recovery by introducing extinction during the reconsolidation window (the re-storage phase of a reactivated memory).

 JoVE Clinical and Translational Medicine

Using Visual and Narrative Methods to Achieve Fair Process in Clinical Care


JoVE 2342 2/16/2011

1Institute for Behavioral Health, Brandeis University, 2Heller School for Social Policy and Management, Brandeis University

This paper illustrates an innovative visual approach (photovoice or photo-elicitation) to achieve fair process in clinical care for patients living with chronic health conditions, illuminate gaps in clinical knowledge, forge better therapeutic relationships, and identify patient-centered goals and possibilities for healing.

 JoVE Neuroscience

Lateral Fluid Percussion: Model of Traumatic Brain Injury in Mice


JoVE 3063 8/22/2011

1Department of Neuroscience and Cell Biology, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, 2Spinal Cord and Brain Injury Research Center, 3Department of Anatomy and Neurobiology, Department of Physical Medicine and Rehabilitation, University of Kentucky Chandler Medical Center

Lateral fluid percussion (LFP), an established model of traumatic brain injury in mice, is demonstrated. LFP fulfills three major criteria for animal models: validity, reliability and clinical relevance. The procedure, consisting of surgical craniotomy, fixation of hub followed by induction of injury, resulting in focal and diffuse injuries, is described.

 JoVE Clinical and Translational Medicine

Development of an Audio-based Virtual Gaming Environment to Assist with Navigation Skills in the Blind


JoVE 50272 3/27/2013

1Laboratory for Visual Neuroplasticity, Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, 2Department of Computer Science and Center for Advanced Research in Education (CARE), University of Chile

Audio-based Environment Simulator (AbES) is virtual environment software designed to improve real world navigation skills in the blind.

 JoVE General

Olfactory Behavioral Testing in the Adult Mouse


JoVE 949 1/28/2009

1Department of Pediatric Oncology, Dana Farber Cancer Institute, 2Department of Neurobiology, Harvard Medical School

Fundamental, yet unique properties of the rodent olfactory system have led to its increasing study among biologists. A relatively simple assessment of its function is then also needed. Here we describe sensitive tests for the characterization of mouse olfactory sensitivity and preference.

 JoVE Bioengineering

Haptic/Graphic Rehabilitation: Integrating a Robot into a Virtual Environment Library and Applying it to Stroke Therapy


JoVE 3007 8/08/2011

1Department of Bioengineering, University of Illinois at Chicago and Rehabilitation Institute of Chicago, 2Sensory Motor Performance Program, Rehabilitation Institute of Chicago

Recently, a vast amount of prospects have come available for human-robot interactive systems. In this paper we outline the integration of a new robotic device with open source software that can rapidly make possible a library of interactive functionality. We then outline a clinical application for a neurorehabilitation application.

 JoVE Neuroscience

Video-oculography in Mice


JoVE 3971 7/19/2012

1Department of Neuroscience, Erasmus MC, Rotterdam, The Netherlands, 2Department of Neuroscience, Royal Dutch Academy of Arts & Sciences (KNAW)

Video-oculography is a very quantitative method to investigate ocular motor performance as well as motor learning. Here, we describe how to measure video-oculography in mice. Applying this technique on normal, pharmacologically-treated or genetically modified mice is a powerful research tool to explore the underlying physiology of motor behaviors.

 JoVE Clinical and Translational Medicine

Probe-based Confocal Laser Endomicroscopy of the Urinary Tract: The Technique


JoVE 4409 1/10/2013

1Department of Urology, Stanford University School of Medicine, 2Veterans Affairs Palo Alto Health Care System

Probe-based confocal laser endomicroscopy enables real-time microscopy of the human urinary tract during cystoscopy, providing dynamic, intravital imaging of pathological states such as bladder cancer with cellular resolution. Endomicroscopy may augment the diagnostic accuracy of standard white light endoscopy and provide intraoperative image guidance to improve surgical resection.

 JoVE Clinical and Translational Medicine

Orthotopic Aortic Transplantation in Mice for the Study of Vascular Disease


JoVE 4338 11/28/2012

1Department of Surgery, The University of Alabama at Birmingham, 2Department of Medicine, The University of Alabama at Birmingham

We describe a technique in which a section of the abdominal aorta from a mouse is transplanted orthotopically to just below the renal arteries in an allogeneic or syngeneic recipient. This technique can be useful in studies in which transplantation of large arteries of uniform size is deemed advantageous.

 JoVE General

A Video Demonstration of Preserved Piloting by Scent Tracking but Impaired Dead Reckoning After Fimbria-Fornix Lesions in the Rat


JoVE 1193 4/24/2009

Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge

In a piloting scent tracking task, the ability of the rats to return to a refuge with food using visual an odor trail or using dead reckoning in infrared light, the integrated record of previous movements, demonstrates that the hippocampus is necessary for dead reckoning.

 JoVE Neuroscience

Selective Viral Transduction of Adult-born Olfactory Neurons for Chronic in vivo Optogenetic Stimulation


JoVE 3380 12/28/2011

Laboratory for Perception and Memory, Institut Pasteur and Centre National de la Recherche Scientifique (CNRS)

Adult-born neurons of the olfactory bulb can be optogenetically controlled using Channelrhodopsin2-expressing lentiviral injection in the rostral migratory stream and chronic photostimulation with an implanted miniature LED.

 JoVE Neuroscience

Design and Assembly of an Ultra-light Motorized Microdrive for Chronic Neural Recordings in Small Animals


JoVE 4314 11/08/2012

1Center for Brain Science, Harvard University, 2Program in Neuroscience, Harvard University, 3Department of Organismic and Evolutionary Biology, Harvard University

The design, fabrication and assembly of an ultra-light motorized microdrive is described. The device provides a cost-effective and easy-to-use solution for chronic recordings of single units in small behaving animals.

 JoVE Bioengineering

Manufacturing Devices and Instruments for Easier Rat Liver Transplantation


JoVE 50380 5/05/2013

1Transplantation Division, Department of Surgery, University of Geneva Hospitals, 2Department of Surgery, University of Pavia, 3Department of Surgery, University of Geneva, 4Division of Abdominal Surgery, Department of Surgery, University of Geneva Hospitals

We describe the design of the “quick-linker” device for easier orthotopic rat liver transplantation.

 JoVE Clinical and Translational Medicine

Normothermic Cardiac Arrest and Cardiopulmonary Resuscitation: A Mouse Model of Ischemia-Reperfusion Injury


JoVE 3116 8/30/2011

1Department of Anesthesiology and Perioperative Medicine, Oregon Health & Sciences University, 2Department of Pharmacology, University of Colorado Denver

A powerful model for perioperative and critical care related acute kidney injury is presented. Using whole body hypoperfusion induced by cardiac arrest it is possible to nearly replicate the histologic and functional changes of clinical AKI.

 JoVE Clinical and Translational Medicine

Surgical Procedures for a Rat Model of Partial Orthotopic Liver Transplantation with Hepatic Arterial Reconstruction


JoVE 4376 3/07/2013

1Institute for Laboratory Animal Science and Experimental Surgery, RWTH-Aachen University, 2Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Graduate School of Medicine, Kyoto University

Orthotopic liver transplantation in rats is an indispensable experimental model for biomedical research. Here we present our surgical procedures for orthotopic rat liver transplantation with hepatic arterial reconstruction using a 50% partial graft.

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