New Citations | BIOPAC in Psychophysiology Research

The mind and body work together in many ways and psychophysiology research provides insight to these connections. BIOPAC has a variety of systems to power your emotion, arousal, stress, cognitive assessment, group interaction, startle, and other psychophysiology research. Here are some recent studies that have used BIOPAC systems for psychophysiological research…

Skin conductance, facial EMG, and heart rate responses in multi-person gaze interactions. Biological Psychology, 176, 108465. Sun, W., Chen, T., & Hietanen, J. K. (2023).

• Researchers were the first to study the effects on participants’ skin conductance, facial electromyographic (fEMG), and heart rate deceleration responses in multi-person eye contact situations. They recorded participants’ responses to seeing two others make eye contact with each other, as well as both looking directly at them. The results from both people looking directly at them were compared to the effects of just one person looking directly at them, and there substantial differences were found.

Reducing decision-making deficits in patients with brain injury: effect of slow-paced breathing. Applied Neuropsychology: Adult, 1-10. Minjoz, S., Ottaviani, E., Phalempin, V., Barathon, G., Pellissier, S., & Hot, P. (2023).

• This study aimed to solve the decreased decision-making abilities in patients with brain damage. They had several patients practice slow-paced breathing for 24 days and assessed their vagal tone (electrocardiogram—ECG), affectivity (Positive and Negative Affect Schedule—PANAS) and certainty level (Dimensional Ratings Questionnaire—DRQ) and their performance on the Iowa Gambling Task. Researchers found that slow-paced breathing was efficient in normalizing the decision-making process in their patients, showing that the reduced ability to make decisions with brain injuries is most likely due to poor information processing.

Development and validation of the food cue responsivity scale.

• There is a lack of consistency with the extent to which food cues impact eating behavior. This study used BIOPAC’s Data Acquisition Module to test the Food Cue Responsivity Scale (FCRS) to determine its reliability and accuracy. The FCRS measures physiological, cognitive, and emotional responses to food cues in the environment and relates this information to overeating. The results from this study and measuring physiological responses to food exposure can help to understand overeating.

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