Effects of Playback Speed on Eye Movement Behavior During News Viewing: An Eye-Tracking Study.

The increasing use of accelerated playback in digital media consumption has raised questions regarding its effects on viewers' perception. This study examined whether playback speed in TV news videos (1× vs. 2×) affects viewers' subjective responses, memory performance, and eye-tracking behavior. We presented news videos under either normal or accelerated playback conditions to a total of N = 146 participants. Our results showed that accelerated playback was associated with lower valence, reduced perceived comprehension, lower credibility evaluations, poorer memory performance, and lower recommendation-intention ratings. In contrast, arousal ratings were higher under accelerated playback conditions. Eye-tracking measures revealed differences in visual attention patterns between conditions, including fixation behavior and attention allocated to lower-third captions. However, the fixation-rate difference should be interpreted cautiously, as increased stimulus velocity may have influenced fixation classification. These findings suggest that accelerated playback was associated with differences in audience evaluation and viewing behavior during news consumption.