Skip navigation
Title: 

Pupillometry software toolbox (MATLAB)

Other Titles: Supplementary material for "A unified model of the task-evoked pupil response"
Authors: Burlingham, Charlie
Mirbagheri, Saghar
Heeger, David
Issue Date: 3-Mar-2022
Publisher: Science Advances
Citation: Burlingham CS, Mirbagheri S, Heeger DJ, A unified model of the task-evoked pupil response, Science Advances, 2022.
Abstract: The pupil dilates and re-constricts following task events. It is popular to model this task-evoked pupil response as a linear transformation of event-locked impulses, whose amplitudes are used as estimates of arousal. We show that this model is incorrect and propose an alternative model based on the physiological finding that a common neural input drives saccades and pupil size. The estimates of arousal from our model agreed with key predictions: arousal scaled with task difficulty and behavioral performance but was invariant to small differences in trial duration. Moreover, the model offers a unified explanation for a wide range of phenomena: entrainment of pupil size and saccades to task timing, modulation of pupil response amplitude and noise with task difficulty, reaction-time-dependent modulation of pupil response timing and amplitude, a constrictory pupil response time-locked to saccades, and task-dependent distortion of this saccade-locked pupil response.
URI: http://hdl.handle.net/2451/63809
Appears in Collections:Heeger Lab Collection

Files in This Item:
File Description SizeFormat 
2 sec.zip2 sec data38.06 MBzip archiveView/Open
4 sec.zip4 sec data158.25 MBzip archiveView/Open
PCDM.zipData analysis code (Matlab)3.53 MBzip archiveView/Open
README.txtReadme text file5.8 kBtextView/Open
stimulus code.zipstimulus code (Matlab)7.85 kBzip archiveView/Open


Items in FDA are protected by copyright, with all rights reserved, unless otherwise indicated.