Electroencephalographic activity was recorded using current pharmaco-EEG standards (Knott, 2000 (link); Saletu et al., 2006 (link); Jobert et al., 2012 (link)). This involved the use of a cap (EasyCap, Herrsching-Breitbrunn, Germany) embedded with 30 Ag+/Ag+Cl- electrodes, left and right mastoids (TP9 and TP10), as well as 2 bipolar electrodes placed on the supra- and sub-orbital ridge and external canthi (to measure vertical and horizontal electro-oculographic activity). An electrode on the nose served as the reference and a ground electrode was positioned at AFz. Electrical recordings were carried out using a Brain Vision QuickAmp® (Brain Products GmbH, Munich, Germany) amplifier and Brain Vision Recorder® (Brain Products GmbH, Munich, Germany) software. Electrical activity was sampled at 500 Hz, with amplifier bandpass filters set at 0.1–100.0 Hz. Electrode impedances were <5 kΩ.
Brain vision quickamp
Manufactured by Brain Products
Sourced in Germany
The Brain Vision QuickAmp is a high-performance, multi-channel amplifier designed for brain research and neurophysiological applications. It features low-noise, high input impedance, and a wide dynamic range to ensure accurate signal acquisition from various electrode types. The QuickAmp supports simultaneous recording of up to 64 channels and provides a reliable and efficient solution for data collection in laboratory settings.
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Lab products found in correlation
2 protocols using brain vision quickamp
1
Detailed Pharmaco-EEG Recording Protocol
2
EEG Recording During Passive Movie Viewing
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EEG was recorded with 28 active electrodes (BrainVision QuickAmp & ActiCap, Brain Products, Germany), with four active electrodes placed on left and right mastoids, near the outer canthus of the right eye (horizontal electro-oculogram, HEOG) and the nose. Two passive bipolar electrodes were used to record the vertical electro-oculogram (VEOG). Recording reference was the average signal of all electrodes, sampling rate 250 Hz, and frequency band from DC to 50 Hz.
During the recording, the children sat in a comfortable chair in an electrically shielded and sound-attenuated room. Stimuli were delivered to both ears via Sony Professional MDR-7506 headphones, while they watched a self-selected, silent video. The children were instructed to watch the program carefully for questions of its content after each block, and not to pay attention to the stimuli. The overall quality of the children’s reports was good, indicating they had attended to the movie. After every two blocks, the child could choose a small item (toys, pens, stickers) to keep up motivation. During a longer mid-experiment break, the child was given juice and cookies, and after finishing, could choose between movie tickets and a monetary compensation. The experiment, including preparation and breaks, lasted approximately 2 h.
During the recording, the children sat in a comfortable chair in an electrically shielded and sound-attenuated room. Stimuli were delivered to both ears via Sony Professional MDR-7506 headphones, while they watched a self-selected, silent video. The children were instructed to watch the program carefully for questions of its content after each block, and not to pay attention to the stimuli. The overall quality of the children’s reports was good, indicating they had attended to the movie. After every two blocks, the child could choose a small item (toys, pens, stickers) to keep up motivation. During a longer mid-experiment break, the child was given juice and cookies, and after finishing, could choose between movie tickets and a monetary compensation. The experiment, including preparation and breaks, lasted approximately 2 h.
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