Key result
High-frequency pupil dilation indices and respiratory-pupillary coupling differentiate emotional responses from baseline.
Why the study?
Can pupil dilation dynamics and autonomic correlates characterize affective states in normal subjects?
Population
13 normal subjects
Design
Other
Authors
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May support autonomic monitoring of affective states; hypothesis-generating and should not yet change practice.
Observational (n=13)
No
Can pupil dilation dynamics and autonomic correlates characterize affective states in normal subjects?
p-value: p=<0.05
Pupil dilation dynamics, coupled with heart rate variability and respiration, can help characterize psychophysiological responses to emotional stimuli.
Onorati et al. (2013) conducted an observational in Healthy (Affective states) (n=13). Emotional memory recall paradigm (Happiness, Sadness, Anger) vs. Baseline (resting period) was evaluated on Pupil dilation (PD) spectral indices (HF and VHF bands) and respiratory-pupillary coupling (G_RESP→PD) (p=<0.05). High-frequency pupil dilation spectral indices and respiratory-pupillary coupling significantly differentiated psychophysiological responses elicited by basic emotional stimuli from baseline.
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