Pupillary Habituation to Dynamic Audiovisual Media
Open Access DepositedOur world is filled with noise, light, movement, and even surprise elements that affect how we interact with it. Imagine reading in a library while outside you hear traffic noises. Your ability to tune out these noises dictate how well you will concentrate on your reading. It remains unclear how humans successfully tune out or adapt to multisensory information through habituation. Habituation is crucial for focusing attention on task-relevant information and can be measured in many different physiological domains. My project examines habituation in pupil responses. Pupil responses are a sensitive physiological measure to both arousal and cognitive components of stimuli and relate directly to brain responses. Pupillary habituation is influenced by stimuli complexity and repetition. This study aims to characterize pupillary habituation of young adults (N=33) to audio-visual stimuli of varying complexity. Using eye-tracking, Participants’ gaze and pupil responses were recorded in three audiovisual paradigms, the "beeps", "bubblegum", and "elf" paradigms, which differ in audio-visual complexity ranging from low to high complexity. Beeps is simply a series of beeps played 300 times while bubblegum and elf are videos of a bubblegum machine played 50 times and a jack in the box played 25 times respectively. In order to characterize habituation to each of these paradigms, we analyzed changes in pupil diameter (PD) over time. The beeps and elf paradigm were observed to have a moderately negative pattern while the bubblegum paradigm resulted in a moderately positive pattern. Consequently, habituation was only observed during the beeps and elf paradigms.
- All rights reserved
Notice to Authors
If you are the author of this work and you have any questions about the information on this page, please use the Contact form to get in touch with us.