scholarly journals Labor division in joint tasks: Humans maximize use of their individual attentional capacities

2020 ◽  
Author(s):  
Basil Wahn ◽  
Alan Kingstone

In daily life, humans frequently perform visuospatial tasks together (e.g., visual search) and distribute the labour in such tasks. Previous research has shown that humans prefer a left and right labour division in a joint multiple object tracking (MOT) task. Yet, findings from studies investigating individuals' tracking ability suggest attentional capacities may be more maximally used with a top and bottom labour division. We investigated whether co-actors' labour division preference is influenced by how they are seated (neighbouring vs. opposite of each other) or how the MOT task is displayed (portrait vs. landscape). We find that pairs attain a higher performance using a top and bottom labour division and preferred this labour division compared to a left and right division. This preference was unaffected by the seating arrangement. For the landscape display, however, we find that participants no longer attain a higher performance for the top and bottom labour division and accordingly participants' preference for this labour division was greatly reduced as well. Overall, we propose that co-actors are sensitive to changes within their environment which allows them to choose a labour division that maximizes use of their individual attentional capacities.

Author(s):  
Kathryn Barker ◽  
Roy Allen ◽  
Peter McGeorge

Research has demonstrated that individuals who routinely engage in complex visuospatial tasks (e.g., radar operators) show an enhanced ability to track multiple randomly moving targets. This study examined tracking expertise using members of a University Officer Training Corps (OTCs) who regularly engage in tasks requiring good dynamic spatial cognition. As expected, the results show that OTCs have enhanced tracking ability relative to other undergraduates. More importantly, they support the idea that, while one set of executive processes are involved in the moment-by-moment updating of the visuospatial representations necessary for dynamic, multiple-object tracking, other processes are activated when whole object sets disappear simultaneously, to create a long-term memory trace of the objects’ locations at the moment of their disappearance. Expertise only arose in the former processes, but was lost after a short decay period, such as occurred with a delayed response.


Author(s):  
Reem Alzahabi ◽  
Matthew S. Cain

AbstractMultiple-object tracking studies consistently reveal attentive tracking limits of approximately three to five items. How do factors such as visual grouping and ensemble perception impact these capacity limits? Which heuristics lead to the perception of multiple objects as a group? This work investigates the role of grouping on multiple-object tracking ability, and more specifically, in identifying the heuristics that lead to the formation and perception of ensembles within dynamic contexts. First, we show that group tracking limits are approximately four groups of objects and are independent of the number of items that compose the groups. Further, we show that group tracking performance declines as inter-object spacing increases. We also demonstrate the role of group rigidity in tracking performance in that disruptions to common fate negatively impact ensemble tracking ability. The findings from this work contribute to our overall understanding of the perception of dynamic groups of objects. They characterize the properties that determine the formation and perception of dynamic object ensembles. In addition, they inform development and design decisions considering cognitive limitations involving tracking groups of objects.


2019 ◽  
Vol 55 (2) ◽  
pp. 33-39
Author(s):  
Ryousuke FURUKADO ◽  
Daisuke AKIYAMA ◽  
Tomohisa SAKUMA ◽  
Ryota SHINRIKI ◽  
Goichi HAGIWARA ◽  
...  

2013 ◽  
Vol 25 (2) ◽  
pp. 545-553 ◽  
Author(s):  
Darlene A. Brodeur ◽  
Lana M. Trick ◽  
Heidi Flores ◽  
Caitlin Marr ◽  
Jacob A. Burack

AbstractWe investigated differences in multiple-object tracking among individuals with Down syndrome (DS) as compared to typically developing children matched on a visual–spatial mental age of approximately 5.5 years. In order to ensure that these effects did not originate in differences in encoding or reporting the positions of targets in distracters after a delay, immediate and delayed report were measured for static items. Although their immediate and delayed report for multiple static items was comparable to that of the typically developing children, the participants with DS performed as if they were only capable of tracking a single item at a time regardless of the number of targets that needed to be tracked. This finding is surprising because the operations used in multiple-object tracking are thought to be necessary for visuospatial tasks, which are an area of relative strength among persons with DS. These results call into question the idea that abilities or deficits in multiple-object tracking predict visuospatial performance, and highlight ways that atypical development can inform our understanding of typical development.


Author(s):  
K. Botterill ◽  
R. Allen ◽  
P. McGeorge

The Multiple-Object Tracking paradigm has most commonly been utilized to investigate how subsets of targets can be tracked from among a set of identical objects. Recently, this research has been extended to examine the function of featural information when tracking is of objects that can be individuated. We report on a study whose findings suggest that, while participants can only hold featural information for roughly two targets this task does not affect tracking performance detrimentally and points to a discontinuity between the cognitive processes that subserve spatial location and featural information.


2010 ◽  
Author(s):  
Todd S. Horowitz ◽  
Michael A. Cohen ◽  
Yair Pinto ◽  
Piers D. L. Howe

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