V amp 16 amplifier

Manufactured by Brain Products

Sourced in Germany

The V-Amp 16 is a high-performance amplifier developed by Brain Products for use in research and clinical settings. It features 16 channels, high-quality analog-to-digital conversion, and advanced signal processing capabilities to support a wide range of electrophysiological measurements.

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Lab products found in correlation

Vision recorder 5 amp edition software, by Brain Products (2 mentions) Brain vision analyzer, by Brain Products (2 mentions) Brain vision recorder software, by Brain Products (2 mentions) Brain vision analyzer 2, by Brain Products (1 mentions) Brain vision analyzer software, by Brain Products (1 mentions)

8 protocols using v amp 16 amplifier

Multimodal Recording of Facial EMG and EEG

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Continuous EMG and EEG were recorded at 1000 Hz by using a V-Amp 16 amplifier (Brain Products Inc., Gilching, Germany). Facial EMG activity was measured over the corrugator and zygomaticus muscle regions according to guidelines provided by Fridlund and Cacioppo (1986) (link). The EEG was recorded using an EasyCap (EasyCap, Hersching, Germany) from 10 positions including FCz, Cz, CPz, Pz, C1, C2, CP1, CP2, and the left and right mastoids. Vertical EOG was recorded from electrodes placed 1 cm above and below the right eye, and horizontal EOG was recorded with two electrodes 1 cm from the outer epicanthus of each eye. FCz was used as ground. Reference was placed at Cz during data recording and replaced by the mean of mastoids during off-line data analysis. Impedance was kept below 10 kΩ at all sites.

Wu L., Winkler M.H., Wieser M.J., Andreatta M., Li Y, & Pauli P. (2015). Emotion regulation in heavy smokers: experiential, expressive and physiological consequences of cognitive reappraisal. Frontiers in Psychology, 6, 1555.

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Physiological Responses Recorded and Analyzed

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Physiological responses were recorded with a V‐Amp 16 amplifier and Vision Recorder V‐Amp Edition Software (Version 1.03.0004, Brain Products Inc., Munich, Germany). A sampling rate of 1000 and a 50 Hz notch filter were applied. The offline analyses of these responses were conducted with BrainVision Analyzer (Version 2.0; Brain Products Inc., Munich, Germany).

Andreatta M, & Pauli P. (2019). Generalization of appetitive conditioned responses. Psychophysiology, 56(9), e13397.

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Skin Conductance Measurement in Acquisition Training

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Skin conductance was measured during acquisition training via two reusable Ag/AgCl electrodes attached to the hypothenar eminence of the participants’ non-mouse hand and a V-Amp 16 amplifier (Brain Products GmbH, Gilching, Germany). The sampling rate was set to 1000 Hz. Data preprocessing was conducted using BrainVision Analyzer 2 software (Brain Products GmbH, Gilching, Germany). Raw data were filtered with a 50 Hz notch filter and a 1 Hz low-pass filter. SCR amplitudes were obtained by semi-manual trough-to-peak scoring. Negative SCRs were set to zero and included in the analyses. Amplitudes were then square root transformed to reduce skewness. Two participants of the neutral learning group had to be excluded from SCR analysis due to poor signal quality.

Boschet J.M., Scherbaum S, & Pittig A. (2022). Costly avoidance of Pavlovian fear stimuli and the temporal dynamics of its decision process. Scientific Reports, 12, 6576.

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Physiological Response Recording Protocol

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Physiological responses were recorded with a V-Amp 16 amplifier and Vision Recorder V-Amp Edition Software (Version 1.03.0004, BrainProducts Inc., Munich, Germany). A sampling rate of 1000 Hz and a 50 Hz notch filter were applied. The offline analyses were conducted with Brain Vision Analyzer (Version 2.0; BrainProducts Inc., Munich, Germany).

Andreatta M, & Pauli P. (2015). Appetitive vs. Aversive conditioning in humans. Frontiers in Behavioral Neuroscience, 9, 128.

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Physiological Responses Acquisition and Analysis

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Physiological responses were collected with a V-Amp 16 amplifier and Brain Vision Recorder Software (Version 1.03.0004, Brain Products Inc.). A 50 Hz notch filter and a 1000 Hz sampling rate were applied. The offline analyses were conducted with Brain Vision Analyzer Software (Version 2.0; Brain Products Inc).

Andreatta M., Neueder D., Glotzbach-Schoon E., Mühlberger A, & Pauli P. (2017). Effects of context preexposure and delay until anxiety retrieval on generalization of contextual anxiety. Learning & Memory, 24(1), 43-54.

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Virtual Reality Fear Assessment

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During the VR flights, patients were asked to rate their current fear on a scale from 0 (no fear) to 100 (extreme fear) at four different moments (in the middle of each of the two turbulence phases and each of the two calm phases).
Heart rate (HR) and skin conductance level (SCL) were continuously recorded during the VR flights using a V-Amp16 amplifier and the Brain Vision Recorder software (Brain Products GmbH, Gilching, Germany; please see Shiban et al. [33 (link)] for details on the analysis and recording).
Respiration rate (RR) was measured with the help of a flexible strap placed around the waist. The RR was recorded only in the breathing group with the same setup.

Shiban Y., Diemer J., Müller J., Brütting-Schick J., Pauli P, & Mühlberger A. (2017). Diaphragmatic breathing during virtual reality exposure therapy for aviophobia: functional coping strategy or avoidance behavior? a pilot study. BMC Psychiatry, 17, 29.

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Multimodal Neurophysiological Recordings

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Data were recorded using a V-Amp 16 amplifier (Brain Products GmbH). Electroencephalogram (EEG) data were digitized at Fs = 500 Hz with a low-pass filter at 180 Hz and a magnitude resolution of 0.049 µV/bit. Recordings included 10 EEG channels (F3, Fz, F4, C3, Cz, C4, Pz, O1, O2, A1), two electro-oculograms (EOGs), two chin electromyograms (EMGs) and two electrocardiograms (ECGs).

Berthomier C., Muto V., Schmidt C., Vandewalle G., Jaspar M., Devillers J., Gaggioni G., Chellappa S.L., Meyer C., Phillips C., Salmon E., Berthomier P., Prado J., Benoit O., Bouet R., Brandewinder M., Mattout J, & Maquet P. (2020). Exploring scoring methods for research studies: Accuracy and variability of visual and automated sleep scoring. Journal of sleep research, 29(5).

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EEG Recording for TMS and Sleep Studies

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Spontaneous quiet waking EEG was recorded prior to each TMS session using the same 60-channel TMS-compatible EEG (+2 EOG) amplifier (Eximia; Nexstim). Participants were instructed to fix a black dot during 2 min while relaxing and suppressing blinking.
Sleep EEG data were recorded using a V-Amp 16 amplifier (Brain Products GmbH, Gilching, Germany) according to 10/20 system). The habituation night montage consisted of a full PSG with five EEG channels (Fz, Cz, Pz, Oz, C3) referenced to left mastoid (A1), two bipolar electrooculogram (EOG), two bipolar electrocardiogram channels, two bipolar electrodes placed on a leg to check for periodic movements and an oximeter for sleep related breathing disorder detection. Baseline night montage consisted of 11 EEG channels (F3, Fz, F4, C3, Cz, C4, P3, Pz, P4, O1 and O2) referenced to left and right mastoids (A1 and A2), two bipolar EOG and two bipolar electromyogram (EMG) channels. EEG data were digitized at a sampling rate of 500 Hz.

Ly J.Q., Gaggioni G., Chellappa S.L., Papachilleos S., Brzozowski A., Borsu C., Rosanova M., Sarasso S., Middleton B., Luxen A., Archer S.N., Phillips C., Dijk D.J., Maquet P., Massimini M, & Vandewalle G. (2016). Circadian regulation of human cortical excitability. Nature Communications, 7, 11828.

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