Neural responses to naturalistic clips of behaving animals in two different task contexts

Abstract

Neuroimaging studies of object and action representation often use controlled stimuli and implicitly assume that the relevant neural representational spaces are fixed and context-invariant. Here we present functional MRI data measured while participants freely viewed brief naturalistic video clips of behaving animals in two different task contexts. Participants performed a 1-back category repetition detection task requiring them to attend to either animal taxonomy or animal behavior. The data and analysis code are freely available, and have been curated according to the Brain Imaging Data Structure (BIDS) standard. We thoroughly describe the data, provide quality control metrics, and perform a searchlight classification analysis to demonstrate the potential utility of the data. These data are intended to provide a test bed for investigating how task demands alter the neural representation of complex stimuli and their semantic qualities.

A naturalistic neuroimaging database for understanding the brain using ecological stimuli

“…The mean FD was 0.138 mm (SD = 0.06) and there were 34.52 (SD = 74.72) timepoints above a 0.50 mm threshold on average (of 6998.20 timepoints or 0.49% of the data on average). Our mean FD compares favorably to 0.12 107 , 0.13 108 , 0.15 109 , 0.18 110 and 0.24 mm 111 in other studies with typically developing participants watching videos or movies during fMRI.…”

An fMRI dataset in response to “The Grand Budapest Hotel”, a socially-rich, naturalistic movie

“…Temporal SNR is expected to vary across areas due to signal susceptibility artifacts, differences in anatomy across subjects, and overall subject arousal levels during the scan 45 . The mean whole-brain tSNR across subjects was 74.42 ± 3.91, which is comparable to previous datasets 50,51 . As expected, temporal SNR varied across areas, with higher tSNR in dorsal areas, and lower tSNR in anterior temporal cortex and orbito-frontal cortex (see Fig.…”

An fMRI dataset in response to “The Grand Budapest Hotel”, a socially-rich, naturalistic movie

“…Temporal SNR is expected to vary across areas due to signal susceptibility artifacts, differences in anatomy across subjects, and overall subject arousal levels during the scan 45 . The mean whole-brain tSNR across subjects was 74.42 ± 3.91, which is comparable to previous datasets 49,50 . As expected, temporal SNR varied across areas, with higher tSNR in dorsal areas, and lower tSNR in anterior temporal cortex and orbito-frontal cortex (see Figure 2).…”