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Filters: Format: "application/pdf" Collection: "ir_uspace" Subject: "Neural recording"
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CreatorTitleDescriptionSubjectDate
1 Horch, Kenneth W.Acoustic interneurons of fiddler and ghost crabsThe properties of acoustic interneurons in fiddler (Uca pugilalor and U. minax) and ghost (Ocvpade qucldrula) crabs are described, as revealed bv tests with pure tones. Three types of interneurons were present in all species: tonic, which fired for the duration of the stimulus; phasic, which fire...Acoustic crabs; Neural recording; Vibration reception1976
2 Harrison, Reid R.Custom multielectrode array with integrated low-noise preamplifiersMultielectrode arrays (MEAs) have emerged as a leading technology for extracellular neural recording and stimulation. Their large number of recording sites promises to yield important insight into neural systems. As the density of recording sites increases, interfacing to each electrode becomes inc...Electrode; Multielectrode arrays (MEA); Neural recording; Extracellular recording; Low-noise2003-01-01
3 Harrison, Reid R.;Normann, Richard A.Design and testing of an integrated circuit for multi-electrode neural recordingWe have developed a single-chip neural recording system with wireless power delivery and telemetry. The 0.5-μm CMOS IC is designed to be bonded to the back of a 100-channel Utah Electrode Array. A pad near each amplifier allows connection of the chip to the MEMS electrode array. The complete Integr...recording; Neural recording; Utah Electrode Array; Multielectrode arrays (MEA); Telemetry; Spike detectors; Wireless2007-01
4 Harrison, Reid R.Design of integrated circuits to observe brain activityThe ability to monitor the simultaneous electrical activity of multiple neurons in the brain enables a wide range of scientific and clinical endeavors. Recent efforts to merge miniature multielectrode neural recording arrays with integrated electronics have revealed significant circuit design chall...Amplifiers; Analog integrated circuits; Biomedical signal processing; Low-power circuit design; Neural recording; Subthreshold circuit design; Neural signals; Brain activity2008-01-01
5 Harrison, Reid R.HermesC: low-power wireless neural recording system for freely moving primatesNeural prosthetic systems have the potential to restore lost functionality to amputees or patients suffering from neurological injury or disease. Current systems have primarily been designed for immobile patients, such as tetraplegics functioning in a rather static, carefully tailored environment....Brain-machine interface; Low power; Neural prosthetics; Telemetry; Wireless; Neural recording; HermesC2009-08
6 Harrison, Reid R.HermesC: RF wireless low-power neural recording for freely behaving primatesNeural prosthetics for motor systems is a rapidly growing field with the potential to provide treatment for amputees or patients suffering from neurological injury and disease. To determine whether a physically active patient such as an amputee can take advantage of these systems, we seek to devel...HermesC; RF wireless; Low-power; Neural recording; Neural prosthetics; Integrated Neural Interface; Macaques2008-05
7 Harrison, Reid R.Local field potential measurement with low-power analog integrated circuitLocal field potentials (LFPs) in the brain are an important source of information for basic research and clinical (i.e., neuroprosthetic) applications. The energy contained in certain bands of LFPs in the 10-100 Hz range has been shown to correlate with specific arm movement parameters in nonhuman ...Local field potentials; Neural recording; Low-power circuit design; Neural prosthesis; VLSI2004-01-01
8 Harrison, Reid R.Low-power FM transmitter for use in neural recording applicationsWe present a low power FM transmitter for use in neural recording telemetry. The transmitter consists of a low noise biopotential amplifier and a voltage controlled oscillator used to transmit the amplified neural signals at a frequency of 433 MHz. The circuit is powered through a transcutaneous,...RF telemetry; Transmitter; Neural recording; Low power circuits; Multielectrode arrays; Voltage controlled oscillator (VCO)2004-01-01
9 Harrison, Reid R.;Normann, Richard A.Low-power integrated circuit for a wireless 100-electrode neural recording systemIn the past decade, neuroscientists and clinicians have begun to use implantable MEMS multielectrode arrays (e.g., [1]) to observe the simultaneous activity of many neurons in the brain. By observing the action potentials, or "spikes," of many neurons in a localized region of the brain it is possibl...Electrode; Multielectrode arrays (MEA); Neural recording; Low-power circuits; Wireless2006-01-01
10 Harrison, Reid R.Low-power integrated circuit for adaptive detection of action potentials in noisy signalsThe advent of microelectrode arrays allowing for the simultaneous recording of 100 or more neurons is leading to significant advances in science and medicine. However, the amount of data generated by these arrays presents a technical challenge if these systems are ever to be fully implanted for n...Low-power; Spike detection; Neural recording; Low-power circuit design; Neuroprosthesis; CMOS2003-01-01
11 Harrison, Reid R.;Normann, Richard A.Preliminary study of thermal impact of a microelectrode array implanted in the brainOne requirement of a chronically implantable, wireless neural interface device is the integration of electronic circuitry with the microelectrode array. Since the electronic IC dissipates a certain amount of power, it will affect the temperature in the tissues surrounding the implant site. In this ...Microelectrode arrays; Neural recording; Utah Electrode Array; Thermal impact2006-08
12 Harrison, Reid R.Validation of adaptive threshold spike detector for neural recordingWe compare the performance of algorithms for automatic spike detection in neural recording applications. Each algorithm sets a threshold based on an estimate of the background noise level. The adaptive spike detection algorithm is suitable for implementation in analog VLSI; results from a proof-of-...Spike detection; Neural recording; Ation potential; VLSI2004-01-01
13 Harrison, Reid R.Versatile integrated circuit for the acquisition of biopotentialsElectrically active cells in the body produce a wide variety of voltage signals that are useful for medical diagnosis and scientific investigation. These biopotentials span a wide range of amplitudes and frequencies. We have developed a versatile front-end integrated circuit that can be used to amp...Biopotential; Neural recording; Electrodes; Amplifier2007-09
14 Harrison, Reid R.Wireless integrated circuit for 100-channel neural stimulationWe present the design of an integrated circuit for wireless neural stimulation, along with bench-top and in-vivo experimental results. The chip has the ability to drive 100 individual stimulation electrodes with constant-current pulses of varying amplitude, duration, interphasic delay, and repetiti...Wireless; Integrated Neural Interface; Neural recording; Telemetry2008-11
15 Harrison, Reid R.; Tabib-Azar, MassoodWireless multi-channel sensor for neurodynamic studiesThis paper presents the design of a bio-compatible, implantable neural recording device for Aplysia californica, a common sea slug. Low-voltage extracellular neural signals (<100 μV) are recorded using a high-performance, low-power, low-noise preamplifier that is integrated with programmable data a...Implantable; Data acquisition; Neural recording; Neural signals; Telemetry; Low-power circuits; Low-noise amplifier; Sea slug2004-01-01
16 Harrison, Reid R.Wireless neural interface for chronic recordingA primary goal of the Integrated Neural Interface Project (INIP) is to develop a wireless, implantable device capable of recording neural activity from 100 micromachined electrodes. The heart of this recording system is a low-power integrated circuit that amplifies 100 weak neural signals, detect...Integrated Neural Interface; Wireless; Neural recording; Telemetry2008-11
17 Harrison, Reid R.Wireless neural signal acquisition with single low-power integrated circuitWe present experimental results from an integrated circuit designed for wireless neural recording applications. The chip, which was fabricated in a 0.6-μm 2P3M BiCMOS process, contains 100 amplifiers and a 10-bit ADC and 902-928 MHz FSK transmitter. Neural signals from one amplifier are sampled by...Low-power; Wireless; Neural recording; Integrated Neural Interface; INI3; Utah Electrode Array2008-05
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