Two PC-compatible computers controlled auditory stimulus presentation and data acquisition of the electrocardiographic parameters, running Presentation (Neurobehavioral Systems) and Acknowledge (BIOPAC Systems Inc.) softwares. Electrocardiographic recordings were collected at a sampling frequency of 1000 Hz through an electrocardiograph ECG100C module coupled to the MP150 system (BIOPAC Systems Inc.).
Ecg100c module
Manufactured by Biopac
Sourced in United States
The ECG100C module is a high-performance electrocardiogram (ECG) amplifier designed for research and clinical applications. It provides accurate and reliable measurement of the electrical activity of the heart. The module features adjustable gain, selectable filters, and input connectors for ECG electrodes.
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Lab products found in correlation
Mp150 system, by Biopac (2 mentions)
Biosen c line glucose and lactate analyser, by EKF Diagnostics (2 mentions)
Portapres, by Finapres Medical Systems (2 mentions)
Mp150 system with acqknowledge acquisition and analysis software, by Biopac (2 mentions)
Mp150 amplifier, by Biopac (1 mentions)
Acqknowledge 3, by Biopac (1 mentions)
Eda100c module, by Biopac (1 mentions)
Tsd203 model, by Biopac (1 mentions)
5 protocols using ecg100c module
1
Electrocardiographic Data Acquisition Protocol
2
Measuring Cardiac Autonomic Activity
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Interbeat interval (IBI) refers to the time between subsequent R waves or the time to complete one cardiac cycle in milliseconds. This measure results from the coordinated activity of both sympathetic and parasympathetic branches of the ANS. Given that IBI changes within a few seconds, it affords high temporal precision for PL. Cardiovascular activity was continuously measured by electrocardiogram (ECG) for all participants throughout the interaction. ECG was recorded with electrodes in the modified Lead II placement and sent to a computer via Biopac ECG100C Module and MP150 amplifier (Biopac Systems, Inc., Goleta, CA). The ECG data were scored with AcqKnowledge version 4.4 (Biopac Systems, Inc., Goleta, California) to extract IBIs. The IBI data was segmented into 2-s intervals. Next, the mean over each 2-s interval was calculated for the entire 5-min conversation, resulting in 150 observations for each participant.
3
Continuous Hemodynamic and Blood Gas Monitoring
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Continuous non-invasive arterial blood pressure profiles were recorded at the medium finger (Portapres, Finapres® Medical Systems, Enschede, The Netherlands) and peripheral blood oxygen saturation (SpO 2 ) was continuously monitored at the index finger of the left arm (Nellcor N-595, Medtronic, Minneapolis, MN, USA). The left arm was positioned on a support at the heart level. Beat-by-beat HR was recorded by electrocardiography (ECG100C module, BIOPAC® Systems Inc., Goleta, CA, USA). All signals were collected and sampled at 400 Hz (MP150 system with Acq-Knowledge acquisition and analysis software, BIOPAC® Systems Inc., Goleta, CA, USA) and stored on a personal computer for subsequent analysis. [La] was measured by an enzymatic-amperometric method (Biosen C-Line Glucose and Lactate analyser, EKF Diagnostics, Cardiff, UK) on 20 μl capillary blood samples. Arterialised blood pH, pO 2 , pCO 2 , and [HCO 3 -] were measured (ABL800 FLEX, Radiometer, Brønshøj, Denmark) on 35-55 μl capillary blood samples.
4
Continuous Noninvasive Hemodynamic Monitoring
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Continuous non-invasive arterial blood pressure profiles were recorded at the medium finger of the left arm (Portapres, Finapres® Medical Systems, Enschede, The Netherlands). The left arm was positioned on a rigid support at the heart level. Beat-by-beat HR was recorded by electrocardiography (ECG100C module, BIOPAC® Systems Inc., Goleta, CA, USA). Applied workload and pedalling speed were continuously monitored by analogic outputs from the cycle ergometer which were digitalised (UIM100C module, BIOPAC® Systems Inc., Goleta, CA, USA) and used to provide a precise time alignment of the three repetitions of the two exercise transients. All signals were collected and sampled at 400 Hz (MP150 system with AcqKnowledge acquisition and analysis software, BIOPAC® Systems Inc., Goleta, CA, USA) and stored on a personal computer for subsequent analysis. [La] was measured by an enzymatic-amperometric method (Biosen C-Line Glucose and Lactate analyser, EKF Diagnostics, Cardiff, UK) on 20 μl capillary blood samples.
5
Physiological Signal Acquisition and Analysis
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In the present study, signals were recorded with a Biopac MP‐150 system at 200 Hz sampling rate and fed into AcqKnowledge 3.9 software (BIOPAC Systems, Inc., Goleta, California, USA) for offline analysis. The SCR was acquired with two Ag/AgCl electrodes (TSD203 model; BIOPAC Systems) filled with isotonic hyposaturated conductant gel (GEL101 model; BIOPAC System), and attached to the distal phalanges of the second and third finger of the participant left hand. A Biopac EDA100C module was used to amplify the SCR signal (gain switch set to 5 μS/V, low pass to 35 Hz, high pass to DC). The ECG was acquired with three Ag/AgCl electrodes (EL503 model; BIOPAC Systems) filled with isotonic hyposaturated conductant gel (Lectron III Gel, NEUROSPEC). Electrodes were positioned in a modified bipolar lead I configuration, with the positive electrode placed on the participant's left wrist, the negative electrode on the right wrist, and the ground electrode attached just underneath the right clavicle. A Biopac ECG100C module was used to amplify ECG signals (gain switch set to 500, low pass to 35 Hz, high pass to 0.05 Hz).
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