Look-ahead fixations during visuomotor behavior: Evidence from assembling a camping tent
نویسندگان
چکیده
Eye movements can support ongoing manipulative actions, but a class of so-called look ahead fixations (LAFs) are related to future tasks. We examined LAFs in complex natural task—assembling camping tent. Tent assembly is relatively uncommon task and requires the completion multiple subtasks sequence over 5- 20-minute duration. Participants wore head-mounted camera eye tracker. Subtasks were annotated. document four novel aspects LAFs. First, not random their frequency was biased certain objects subtasks. Second, latencies larger than previously noted, with 35% occurring within 10 seconds before motor manipulation 75% 100 seconds. Third, LAF behavior extends far into subtasks, because only 47% made relevant current subtask. Seventy-five percent used five upcoming steps. Last, often directed repeatedly target manipulation, suggesting memory volatility. short fixation–action have been hypothesized benefit visual search and/or manipulation. However, diversity suggest they may also reflect scene exploration relevance, as well longer term problem solving planning.
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2021
ISSN: ['1534-7362']
DOI: https://doi.org/10.1167/jov.21.3.13