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The perception of nested affordances: an examination of expert climbers

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Nested affordances in climbing comprise of multiple sequential actions, encompassing more than isolated reaching and grasping. This study examined the extent to which the perception of (multiple) nested affordances in climbing can be understood relative to body-scaled anthropometrics (arm span) and action-scaled (maximal action capabilities) measures, in relation to sequential task-goals of varying complexity. The utilisation of functionally equivalent actions during the actualisation of nested affordances was also investigated. Participants were required to estimate the maximal distance a handhold could be reached in four conditions of varying complexity: nested affordances (reach to Touch; reach to Grasp) vs. multiple nested affordances (reach to grasp with one hand followed by Removing the other hand from the starting handhold; reach to grasp with one hand followed by Moving up to another handhold). Ten expert climbers first had to estimate their maximal reaching distance in these different conditions (Touch, Grasp, Remove, Move Up) before performing the climbing movement. This sequence of estimation-action was repeated four times in each condition. Results revealed that action-scaling measures better captured nested affordances when multiple sequential behaviours are nested than body-scaled measures. Our findings also suggest that expert climbers utilise functionally equivalent movements during the realisation of multiple nested affordances (Remove and Move Up conditions).
Original languageEnglish
Article number101843
Number of pages10
JournalPsychology of Sport and Exercise
Volume52
Early online date23 Nov 2020
DOIs
Publication statusPublished - 1 Jan 2021

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  • Seifert et al. Psychology of Sport and Exercise 2020

    Accepted author manuscript (Post-print), 656 KB, PDF document

    Due to publisher’s copyright restrictions, this document is not freely available to download from this website until: 23/05/22

    Licence: CC BY-NC-ND

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