Neurophysiological Equipment
Neurophysiological Equipment - Related Videos
09:16
An Introduction to Neurophysiology
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2023
Neurophysiology is broadly defined as the study of nervous system function. In this field, scientists investigate the central and peripheral nervous systems at the level of whole organs, cellular networks, single cells, or even subcellular compartments. A unifying feature of this wide-ranging discipline is an interest in the mechanisms that lead to the generation and propagation of electrical impulses within and between neurons. This subject is important not only for our understanding of the...
09:37
Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control
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Cited by 5 •
2015
Attention control comprises enhancement of target signals and attenuation of distractor signals. We describe an approach to measure separately but concurrently, the neurophysiology of attending and ignoring in sustained intermodal attention, utilizing a passive control condition during which neither process is continuously engaged.
19:32
Preterm EEG: A Multimodal Neurophysiological Protocol
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Cited by 39 •
2012
This video explains the background theory of the neonatal EEG activity and the sensory responses, followed by a live demonstration of their recording in neonatal intensive care unit.
01:18
Leveling Equipment
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2025
As leveling involves measuring vertical distances relative to a horizontal line of sight, it requires a graduated rod, called a level rod, for vertical measurements and an instrument called a level for a horizontal sight line. A level includes a high-powered telescope with a mechanism for leveling to ensure the line of sight is horizontal when the bubble in the spirit level is centered. Leveling rods, made of wood, metal, or fiberglass, are graduated in feet or meters and commonly used in two-...
05:37
Proper Personal Protective Equipment
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2023
Robert M. Rioux & William A Elliott, Pennsylvania State University, University Park, PA Hazards are many and varied in the laboratory, but the right choice of PPE can make the laboratory a safe place to work.
FAQs
These systems use electrodes or sensors to detect electrical and physiological activity, then amplify weak signals so they can be measured reliably. Filtering helps separate relevant activity from unwanted signal components, while recording systems convert the processed information into interpretable traces or other data representations. This sequence supports analysis of nervous-system function during research or clinical assessment.
Electrodes and sensors provide the interface for detecting bioelectric or physiological activity. Amplifiers increase the measurable strength of signals that may otherwise be difficult to analyze, and filters refine the recorded information before conversion into interpretable results. Together, these components determine how nervous-system activity is captured and prepared for evaluating brain, nerve, or muscle function.
Electroencephalography systems, or EEG systems, support measurement of brain electrical activity, whereas electromyography units, or EMG systems, support assessment of muscle-related electrical activity and nerve function. Neural stimulators serve a different role by delivering controlled stimuli rather than only recording activity. Comparing these functions helps researchers select equipment according to whether they need measurement, assessment, or modulation.
Sensory and motor tasks produce physiological responses that must be captured as interpretable recordings. Amplification makes detected activity easier to measure, while filtering helps prepare the signal for analysis. The resulting recordings can then be examined in relation to the task, allowing investigators to characterize neural responses and study communication or function within the nervous system.
A study generally requires selecting equipment suited to the activity of interest, positioning electrodes or sensors to detect the relevant signals, and recording during defined sensory or motor tasks. The system then amplifies and filters the measurements before converting them into interpretable recordings. Investigators can analyze these outputs to characterize function, compare responses, or identify abnormalities.
Recording equipment is appropriate when the goal is to observe or measure existing electrical and physiological activity, such as responses during sensory or motor tasks. A neural stimulator is selected when the study requires controlled modulation of neural activity. This distinction supports different experimental aims, including characterizing function, investigating neural communication, or evaluating responses to an applied stimulus.
Measurements from neurophysiological equipment can reveal patterns of brain, nerve, or muscle activity and help identify abnormalities associated with neurological disorders. In clinical assessment, such recordings contribute information about nervous-system function. The findings may also inform treatment planning, while research applications use related measurements to develop experimental models and neurotechnologies.
These recordings can help characterize brain and nerve function, examine neural communication, and measure responses associated with sensory or motor activity. They may also reveal abnormalities relevant to neurological disorders. Because the equipment supports both experimental modeling and clinical assessment, its outputs can connect basic investigations of nervous-system activity with diagnostic, treatment-planning, and neurotechnology development goals.