Fig 1.
A. Fig 4 reproduced from (3). On the left, a fixation heat map averaged over group of 10 control participants is shown. On the right, a fixation heat map averaged over group of 10 ASD participants is shown. Warmer colors indicate more fixation time spent at that location; cooler colors indicate less time. B. Fixation heat maps for two individual participants in the current study viewing short movies of faces speaking syllables. The heat maps are visualized on a sample frame from one video, but represent data averaged across all frames and stimuli for that individual. Warmer colors indicate more fixation time spent at that location; cooler colors indicate less time.
Fig 2.
A. The stimuli in Experiment 1 consisted of 2 second movies of talkers speaking syllables. A single frame from one of the stimulus movies is shown; speech bubble indicated auditory speech component ("ba"), not present in actual stimulus movie. The white line (not present in actual stimulus movie) shows dividing line between upper and lower face regions of interest, used for analysis of eye fixation data. B. Face viewing behavior during Experiment 1 summarized as percent of total fixation time spent fixating the lower face region of interest. A scatter plot of percent of total time spent fixating the lower face is shown, with value on the y axis and the x axis is jittered for visibility. Each symbol represents one participant. Symbols for three representative participants are labeled by participant number (fixation heat maps for labeled participants shown in C). C. Fixation heat maps for representative participants are shown (labeled by participant number; symbols representing each participant labeled in B). The heat maps are visualized on a sample frame from one video, but represent data averaged across all frames and stimuli. Warmer colors indicate more fixation time spent at that location; cooler colors indicate less time.
Fig 3.
The relationship between percent of time spent fixating the lower face while viewing syllable videos and Autism-Spectrum Quotient score.
Participant's percent lower face looking time is shown on the y axis; AQ score is shown on the x axis. Each symbol represents one participant.
Table 1.
LME model of lower face looking during Experiment 1 (syllables).
Fig 4.
A. The stimuli in Experiment 2 consisted of movies between 13 and 42 seconds long of talkers speaking full sentences. An example frame is shown; speech bubble shows a portion of auditory speech component (" …tiny little studio …"), not present in actual stimulus movie. The white box (not present in actual stimulus movie) shows the region of data included and the white line (not present in actual stimulus movie) shows the dividing line between upper and lower face regions of interest, used for analysis of eye fixation data. B. Face viewing behavior during Experiment 2 was summarized as percent of total fixation time spent fixating the lower face region of interest. A scatter plot of percent of total time spent fixating the lower face is shown, with value on the y axis and the x axis is jittered for visibility. Each point is a participant. Symbols for three representative participants are labeled by participant number (fixation heat maps for labeled participants shown in C). C. Fixation heat maps for representative participants are shown (labeled by participant number; symbols representing each participant labeled in B). The heat maps are visualized on a sample frame from one video, but represent data averaged across all frames and stimuli. Warmer colors indicate more fixation time spent at that location; cooler colors indicate less time.
Fig 5.
The relationship between percent of time spent fixating the lower face while viewing sentence videos and Autism-Spectrum Quotient score.
Percent of total fixation time spent fixating the lower face shown on the y axis; AQ score is shown on the x axis. Each point represents one participant.
Table 2.
LME model of lower face looking during Experiment 2 (sentences).
Fig 6.
A. Comparison of lower face looking by experiment for 70 participants that completed both experiments. The left column represents time spent fixating the lower face during syllable videos, the right column represents time spent fixating the lower face during sentences. Each symbol represents one participant. Symbols for representative participants are labelled (corresponding fixation heat maps are shown in B). The mean lower face looking time is shown with a horizontal red line for each experiment. Black lines connect fixation time while viewing syllable movies with the fixation time while viewing sentence movies. Each line represents one participant. B. Fixation heat maps of behavior on each task for four representative participants (labeled by participant number; symbols representing each participant labeled in A). Each heat map is visualized on a frame from a single movie, but represent data averaged across all frames and stimuli.