The Influence of Exposure Amount on the Persistence of Short-Term, Haptically Acquired Sensorimotor Memorial Representations
Issue No.02 - April-June (2011 vol.4)
Mike Whitlaw , University of Waterloo, Waterloo
Lawrence E.M. Grierson , Toronto Rehabilitation Institute, Toronto
Adam Dubrowski , The Hospital for Sick Children, Toronto
Heather Carnahan , University of Toronto, Toronto
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TOH.2010.60
This study investigates the influence that the amount of exposure has on the persistence of sensorimotor memories. Participants acquired memories of an unexpectedly heavy object in one of four groups that varied in the number lifts of the object they each performed. All participants followed this acquisition period with retention lifts immediately and after 2-second and 10-second intervals, as well as after 15 minutes and 24 hours. Grasp force profiles were evaluated for the maintenance of memory-dependent adaptations. A lack of any group effects indicates that the quantity of exposure offers the sensorimotor memory system no temporal advantage in the maintenance of short-term representations. The results are discussed in light of the possibility that, within a short time frame, only the information from the preceding lift has functional relevance to the current lift.
Haptics, sensorimotor representations, practice, iconic memory.
Mike Whitlaw, Lawrence E.M. Grierson, Adam Dubrowski, Heather Carnahan, "The Influence of Exposure Amount on the Persistence of Short-Term, Haptically Acquired Sensorimotor Memorial Representations", IEEE Transactions on Haptics, vol.4, no. 2, pp. 147-150, April-June 2011, doi:10.1109/TOH.2010.60