How do reaching and walking costs affect movement path selection?

Experimental Brain Research
Cory Adam PottsDavid A Rosenbaum

Abstract

Although reaching and walking are commonly coordinated, their coordination has been little studied. We investigated decision-making related to reaching and walking in connection with a recently discovered phenomenon called pre-crastination-the tendency to expend extra effort in the service of hastening goal or sub-goal completion. In the earlier studies where pre-crastination was discovered, participants decided which of two buckets to carry to the end of a walkway, picking the bucket they thought was easier. Surprisingly, the majority of participants chose to carry the bucket that was closer to the start position, which meant that the bucket they chose had to be carried farther than the bucket they did not choose. Here we inquired into participants' sensitivity to reaching effort and walking effort by varying how far participants had to reach to pick up a bucket, how heavy the bucket was, and how far participants had to walk with the bucket they chose. We found that participants were willing to lean and reach far to pick up an empty bucket that was a shorter walk from the start position. However, as reaching costs and carrying costs increased, participants prioritized shorter reaches over shorter walking distances. The results...Continue Reading

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May 13, 2014·Psychological Science·David A RosenbaumCory Adam Potts
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Apr 25, 2018·Psychological Research·Lisa R FournierDavid A Rosenbaum

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Citations

Aug 11, 2020·Experimental Brain Research·Mohammad R Saeedpour-PariziJohn B Shea
Feb 21, 2019·Experimental Brain Research·Jarrod Blinch, Callie R DeWinne
Jan 21, 2021·Journal of Motor Behavior·Hui-Ting GohCheng-Ju Hung
Dec 31, 2020·Brain Sciences·Zheng WangMatthew W Mosconi

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