Show Advanced Search

REFINE YOUR SEARCH:

Containing Text
- - -
+
Filter by author or institution
GO
Filter by publication date
From:
October, 2006
Until:
Today
Filter by journal section

Filter by science education

 
 
Magnetic Resonance Imaging: Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.

fMRI: Functional Magnetic Resonance Imaging

JoVE 5212

Functional magnetic resonance imaging (fMRI) is a non-invasive neuroimaging technique used to investigate human brain function and cognition in both healthy individuals and populations with abnormal brain states. Functional MRI utilizes a magnetic resonance signal to detect changes in blood flow that are coupled to neuronal activation when a specific task is performed.…

 Neuroscience

Cardiac Magnetic Resonance Imaging

JoVE 10393

Source: Frederick W. Damen and Craig J. Goergen, Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana


In this video, high field, small-bore magnetic resonance imaging (MRI) with physiological monitoring is demonstrated to acquire gated cine loops of the murine cardiovascular system. This…

 Biomedical Engineering

Nuclear Magnetic Resonance (NMR) Spectroscopy

JoVE 5680

Source: Laboratory of Dr. Henrik Sundén – Chalmers University of Technology



Nuclear magnetic resonance (NMR) spectroscopy is a vital analysis technique for organic chemists. With the help of NMR, the work in the organic lab has been facilitated tremendously. Not only can it provide information about the structure…

 Organic Chemistry

Magnetic Fields

JoVE 10384

Source: Yong P. Chen, PhD, Department of Physics & Astronomy, College of Science, Purdue University, West Lafayette, IN


Magnetic fields can be generated by moving charges, such as an electrical current. The magnetic field generated by a current can be calculated from the Maxwell equation. In addition, magnetic objects such as bar…

 Physics II

Hyperpolarized 13C Metabolic Magnetic Resonance Spectroscopy and Imaging

1Department of Nuclear Medicine, Klinikum rechts der Isar, Technische Universität München, 2Department of Chemistry, Technische Universität München, 3GE Global Research, 4Zentralinstitut für Medizintechnik der Technischen Universität München (IMETUM), Technische Universität München, 5Institute for Biological and Medical Imaging (IBMI), Helmholtz Zentrum München, 6IDG Institute of Developmental Genetics, Helmholtz Zentrum München

JoVE 54751

 Cancer Research

Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

1Institute of Imaging Science, Vanderbilt University, 2Department of Radiology and Radiological Sciences, Vanderbilt University, 3Department of Biomedical Engineering, Vanderbilt University, 4Department of Molecular Physiology and Biophysics, Vanderbilt University, 5Department of Physical Medicine and Rehabilitation, Vanderbilt University, 6Department of Physics and Astronomy, Vanderbilt University

JoVE 52352

 Medicine

Training Dogs for Awake, Unrestrained Functional Magnetic Resonance Imaging

1Department of Psychology, Auburn University, 2Canine Performance Sciences Program, College of Veterinary Medicine, Auburn University, 3AU MRI Research Center, Department of Electrical & Computer Engineering, Auburn University, 4Alabama Advanced Imaging Consortium, 5Center for Neuroscience, Auburn University

JoVE 60192

 Behavior

An Investigation of the Effects of Sports-related Concussion in Youth Using Functional Magnetic Resonance Imaging and the Head Impact Telemetry System

1Graduate Department of Rehabilitation Science, University of Toronto, 2Occupational Science and Occupational Therapy, University of Toronto, 3Department of Psychology, University of Toronto, 4Bloorview Kids Rehab, 5Toronto Rehab, 6Cognitive Neurology, Sunnybrook Health Sciences Centre, 7Faculty of Medicine, University of Toronto

JoVE 2226

 Medicine

Human Brown Adipose Tissue Depots Automatically Segmented by Positron Emission Tomography/Computed Tomography and Registered Magnetic Resonance Images

1Chemical and Physical Biology Program, Vanderbilt University, 2Department of Physical Medicine and Rehabilitation, Vanderbilt University School of Medicine, 3Radiology & Radiological Sciences, Vanderbilt University Medical Center, 4Department of Pharmacology, Vanderbilt University

JoVE 52415

 Medicine

The Use of Magnetic Resonance Spectroscopy as a Tool for the Measurement of Bi-hemispheric Transcranial Electric Stimulation Effects on Primary Motor Cortex Metabolism

1Department of Psychology, University of Montréal, 2Montreal Neurological Institute, McGill University, 3Center for Magnetic Resonance Research and Department of Radiology, University of Minnesota

JoVE 51631

 Neuroscience

High-frequency Ultrasound Imaging of the Abdominal Aorta

JoVE 10397

Source: Amelia R. Adelsperger, Evan H. Phillips, and Craig J. Goergen, Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana


High-frequency ultrasound systems are used to acquire high resolution images. Here, the use of a state-of-the-art system will be demonstrated to image the morphology and …

 Biomedical Engineering

Computational Fluid Dynamics Simulations of Blood Flow in a Cerebral Aneurysm

JoVE 10479

Source: Joseph C. Muskat, Vitaliy L. Rayz, and Craig J. Goergen, Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana


The objective of this video is to describe recent advancements of computational fluid dynamic (CFD) simulations based on patient- or animal-specific vasculature. Here,…

 Biomedical Engineering

An Introduction to Cognition

JoVE 5419

Cognition encompasses mental processes such as memory, perception, decision-making reasoning and language. Cognitive scientists are using a combination of behavioral and neuropsychological techniques to investigate the underlying neural substrates of cognition. They are interested in understanding how information is perceived, processed and how does it affect the final execution of behaviors.…

 Behavioral Science

An Introduction to Neuroanatomy

JoVE 5204

Neuroanatomy is the study of nervous system structures and how they relate to function. One focus of neuroanatomists is the macroscopic structures within the central and peripheral nervous systems, like the cortical folds on the surface of the brain. However, scientists in this field are also interested in the microscopic relationships between neurons and glia - the two…

 Neuroscience

Using fMRI to Dissect Moral Judgment

JoVE 10306

Source: William Brady & Jay Van Bavel—New York University


In examining the roles of reason and emotion in moral judgments, psychologists and philosophers alike point to the trolley dilemma and the footbridge dilemma. With the trolley dilemma, most people say that it is appropriate to pull a switch to stop a train from hitting…

 Social Psychology

Electro-encephalography (EEG)

JoVE 5420

EEG is a non-invasive technique that can measure brain activity. The neural activity generates electrical signals that are recorded by EEG electrodes placed on the scalp. When an individual is engaged in performing a cognitive task, brain activity changes and these changes can be recorded on the EEG graph. Therefore, it is a powerful tool for cognitive scientist aiming to better understand…

 Behavioral Science

Biodistribution of Nano-drug Carriers: Applications of SEM

JoVE 10472

Source: Peiman Shahbeigi-Roodposhti and Sina Shahbazmohamadi, Biomedical Engineering Department, University of Connecticut, Storrs, Connecticut


Nanoparticles have been increasingly used research towards targeted drug delivery and controlled drug release. While most of these particles have been developed as polymeric…

 Biomedical Engineering

An Introduction to Behavioral Neuroscience

JoVE 5210

Behavioral neuroscience is the study of how the nervous system guides behavior, and how the various functional areas and networks within the brain correlate to specific behaviors and disease states. Researchers in this field utilize a wide variety of experimental methods ranging from complex animal training techniques to sophisticated imaging experiments in human subjects. …

 Neuroscience

Visualization of Knee Joint Degeneration after Non-invasive ACL Injury in Rats

JoVE 10477

Source: Lindsey K. Lepley1,2, Steven M. Davi1, Timothy A. Butterfield3,4 and Sina Shahbazmohamadi5,


1Department of Kinesiology, University of Connecticut, Storrs, CT; 2Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, CT; 3Department of Rehabilitation Sciences, University of Kentucky,…

 Biomedical Engineering

Visual Attention: fMRI Investigation of Object-based Attentional Control

JoVE 10272

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


The human visual system is incredibly sophisticated and capable of processing large amounts of information very quickly. However, the brain's capacity to process information is not an unlimited resource. Attention, the ability to…

 Neuropsychology

Motor Maps

JoVE 10175

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


One principle of brain organization is the topographic mapping of information. Especially in sensory and motor cortices, adjacent regions of the brain tend to represent information from adjacent parts of the body, resulting in maps of the…

 Neuropsychology

Introduction to Mass Spectrometry

JoVE 5634

Source: Laboratory of Dr. Khuloud Al-Jamal - King's College London



Mass spectrometry is an analytical chemistry technique that enables the identification of unknown compounds within a sample, the quantification of known materials, the determination of the structure, and chemical properties of different molecules.

 Analytical Chemistry

Preparing and Administering Topical Medications

JoVE 10259

Source: Madeline Lassche, MSNEd, RN and Katie Baraki, MSN, RN, College of Nursing, University of Utah, UT



Topical medications are applied directly to the body surfaces, including the skin and mucous membranes of the eyes, ears, nose, vagina, and rectum. There are many classes of topical medications, such as creams, ointments, …

 Nursing Skills

Spatial Cueing

JoVE 10210

Source: Laboratory of Jonathan Flombaum—Johns Hopkins University


Attention refers to the limited human ability to select some information for processing at the expense of other stimuli in the environment. Attention operates in all sensory modalities: vision, hearing, touch, even taste and smell. It is most often studied in the visual …

 Sensation and Perception

Within-subjects Repeated-measures Design

JoVE 10034

Source: Laboratories of Gary Lewandowski, Dave Strohmetz, and Natalie Ciarocco—Monmouth University



A within-subjects, or repeated-measures, design is an experimental design where all the participants receive every level of the treatment, i.e., every independent variable. For example, in a…

 Experimental Psychology

Learning and Memory: The Remember-Know Task

JoVE 10212

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


Our experience of memory is varied and complex. Sometimes we remember events in vivid detail, while other times we may only have a vague sense of familiarity. Memory researchers have made a distinction between memories that are recollected…

 Neuropsychology

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 …

 Neuropsychology

An Introduction to Learning and Memory

JoVE 5416

Learning is the process of acquiring new information and memory is the retention or storage of that information. Different types of learning, such as non-associative and associative learning, and different types of memory, such as long-term and short-term memory, have been associated with human behaviors. Studying these components in detail helps behavioral scientists understand the neural…

 Behavioral Science

Ostracism: Effects of Being Ignored Over the Internet

JoVE 10336

Source: Peter Mende-Siedlecki & Jay Van Bavel—New York University


Social ostracism is defined as being ignored and excluded in the presence of others. This experience is a pervasive and powerful social phenomenon, observed in both animals and humans, throughout all stages of human development, and across all manner of dyadic…

 Social Psychology

Misattribution of Arousal and Cognitive Dissonance

JoVE 10333

Source: Peter Mende-Siedlecki & Jay Van Bavel—New York University


A host of research in psychology suggests that feelings of psychological arousal may be relatively ambiguous, and under certain circumstances, can lead us to make inaccurate conclusions about our own mental states. Much of this work flows from seminal research…

 Social Psychology

A Minority of One: Conformity to Group Norms

JoVE 10331

Source: William Brady & Jay Van Bavel—New York University


It is obvious that we are influenced by those around us, but in the early to mid 1900's, psychologists began to study how potent social influence can be on our thoughts and behaviors. Motivated in part by attempts to explain the behaviors of Nazi soldiers in World War II,…

 Social Psychology

Creating the Minimal Group Paradigm

JoVE 10310

Source: Julian Wills & Jay Van Bavel—New York University


The study of intergroup relations, such as prejudice, conflict, and discrimination, has always been a central topic in social psychology. Does discrimination stem from competition with other groups, a history of conflict, or derogatory stereotypes? Despite an abundance of…

 Social Psychology

Finding Your Blind Spot and Perceptual Filling-in

JoVE 10195

Source: Laboratory of Jonathan Flombaum—Johns Hopkins University


In the back of everyone's eye is a small piece of neural tissue called the retina. The retina has photosensitive cells that respond to stimulation by light. The responses of these cells are sent into the brain through the optic nerve, a bundle of neural fibers. In each…

 Sensation and Perception

Mental Rotation

JoVE 10115

Source: Laboratory of Jonathan Flombaum—Johns Hopkins University



Visual mental imagery refers to the ability to conjure images in one’s mind’s eye. This allows people to process visual material above and beyond the constraints of a current point-of-view; for example, a person could…

 Cognitive Psychology

Incidental Encoding

JoVE 10103

Source: Laboratory of Jonathan Flombaum—Johns Hopkins University



Long-term memory is a critical feature of human cognition, and it has been a prominent focus of research in experimental psychology. Many paradigms designed to tap long-term memory rely on asking participants to learn or study content, …

 Cognitive Psychology

Executive Function and the Dimensional Change Card Sort Task

JoVE 10085

Source: Laboratories of Nicholaus Noles and Judith Danovitch—University of Louisville


Infants are born with amazing cognitive resources at their disposal, but they don’t know how to use them effectively. In order to harness the power of their brains, humans must develop high-level cognitive processes that manage basic brain…

 Developmental Psychology

Spatial Memory Testing Using Mazes

JoVE 5418

Spatial learning and memory are neurological functions that allow us to remember important details associated with our environment. Scientists test this phenomenon in rodents using different types of mazes like Morris water maze, Radial water maze, and Barnes maze. By investigating spatial memory in rodents, neurobehavioral scientists can gain valuable understanding of how these processes are…

 Behavioral Science

Fear Conditioning

JoVE 5417

Fear Conditioning is a type of learning in which an association is established between a negative unpleasant event and a harmless stimulus. This leads to a fear of the harmless stimulus. This process is largely mediated by the amygdala, which is a brain region involved in emotions and stress reactions. Fear conditioning can be utilized in several ways to understand different aspects of…

 Behavioral Science

Brain State-dependent Brain Stimulation with Real-time Electroencephalography-Triggered Transcranial Magnetic Stimulation

1Department of Neurology & Stroke, University of Tübingen, 2Hertie Institute for Clinical Brain Research, University of Tübingen, 3Department of Neuroscience and Biomedical Engineering, Aalto University

JoVE 59711

 Behavior

Biofunctionalized Prussian Blue Nanoparticles for Multimodal Molecular Imaging Applications

1The Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Medical Center, 2Fischell Department of Bioengineering, University of Maryland, 3Department of Radiology, George Washington University, 4Department of Pediatrics, George Washington University

JoVE 52621

 Bioengineering

Long-term High-Resolution Intravital Microscopy in the Lung with a Vacuum Stabilized Imaging Window

1Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, 2Department of Obstetrics/Gynecology and Woman’s Health, Albert Einstein College of Medicine, 3Department of Anatomy & Structural Biology, Albert Einstein College of Medicine, 4Gruss-Lipper Biophotonics Center Integrated Imaging Program, Albert Einstein College of Medicine, 5Medical Research Council Centre for Reproductive Health, Queen’s Medical Research Institute, University of Edinburgh

JoVE 54603

 Cancer Research
12345678911
More Results...