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New Citations | BIOPAC in Stimulus Presentation Studies

BIOPAC provides software and hardware that allows research teams to study stimulus presentation data. Here are a few notable studies using BIOPAC equipment for research on stimuli’s effects using ECG and SCL data.

Your Face Scares MeAdam Fossier - Dark Face

This study addressed the impact of individual differences in social anxiety by examining the effects of perceptual load and stimulus valence when processing faces versus objects. By measuring reaction time and using a BIOPAC Data Acquisition System to measure ECG, the scientists were able to determine what types of stimuli affected people with elevated levels of social anxiety the most. Read the full study: Your face scares me: Effects of Perceptual load and Social Anxiety on processing of threatening and neutral faces (Marios Theodorou, Nikos Konstantinou, Georgia Panayiotou)

How Long Does Acute Stress Last?

Acute stress is a key indicator of the body starting the fight-or-flight response to a perceived threat. Researchers wanted to know how long acute stress affected subjects after several types of threatening stimuli were presented and then disappeared. By immersing participants in virtual reality to present the stimuli and using BIOPAC’s BioNomadix to measure cardiac output, scientists were able to see the duration of acute stress. Read the full study: Only time will tell: Acute stress response patterns with time series analysis (Brittany B. Nackley, Bruce H. Friedman)

Pavlovian Fear Conditioning in Humans

Learning which environmental cues predict danger is crucial for survival. Rodent studies have implicated a causative role for dopamine in the amygdala during fear memory formation, but human studies are unclear. Using tiny electric shocks generated by the STM100C module connected to the STM200 constant voltage stimulator when certain stimuli were presented, this study was able to see how the human brain reacted to fear conditioning. Read the full study: Dopamine facilitates fear memory formation in the human amygdala (Andreas Frick, Johannes Björkstrand, Mark Lubberink, Allison Eriksson, Mats Fredrikson, Fredrik Åhs)

BIOPAC Stim Pres webinar Learn More in “One Tool for Stimulus Presentation, Eye Tracking & Physiology Data”

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NIRS Experiment License

fNIRS Lesson License

Add fNIRS Lessons to a C Series Imager Record NIRS measurements from the forehead and the forearm at two wavelengths, 730 nm for deoxy-Hb and 850 nm for oxy-Hb. Students embark on real-world NIRS research using a student-friendly approach in these four guided lessons covering nine experiments. COBI Modern makes NIRS experimentation easy for students […]

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New Citations | BIOPAC in EDA Research

Researchers utilize electrodermal activity (EDA) data in a wide array of protocols. These recent studies join thousands of BIOPAC citations for EDA and represent just a few of BIOPAC’s hardware options for wired, wireless, logged, or MRI protocols with reusable or disposable EDA accessories and AcqKnowledge software solutions for Automated EDA Analysis Routines and EDA Measurement Tools. Caffeine Delivery […]

EDA Guide Available

BIOPAC’s comprehensive EDA Guide provides an introduction to Electrodermal Activity (EDA or GSR) and details topics including: EDA Complex: SCL, SCR, tonic, phasic, specific SCR, non-specific SCR Participant Prep & Electrode Placement Data Recording tips Automated EDA Analysis Routines Digital input to Stim Events Stim-Response Analysis Derive Phasic EDA from Tonic Event-related EDA Analysis Locate […]

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