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Object properties and cognitive load in the formation of associative memory during precision lifting

Object properties and cognitive load in the formation of associative memory during precision lifting

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LI, Yong, Jennifer RANDERATH, Hans BAUER, Christian MARQUARDT, Georg GOLDENBERG, Joachim HERMSDÖRFER, 2009. Object properties and cognitive load in the formation of associative memory during precision lifting. In: Behavioural Brain Research. 196(1), pp. 123-130. ISSN 0166-4328. eISSN 1872-7549. Available under: doi: 10.1016/j.bbr.2008.07.031

@article{Li2009-01-03Objec-41393, title={Object properties and cognitive load in the formation of associative memory during precision lifting}, year={2009}, doi={10.1016/j.bbr.2008.07.031}, number={1}, volume={196}, issn={0166-4328}, journal={Behavioural Brain Research}, pages={123--130}, author={Li, Yong and Randerath, Jennifer and Bauer, Hans and Marquardt, Christian and Goldenberg, Georg and Hermsdörfer, Joachim} }

Bauer, Hans Object properties and cognitive load in the formation of associative memory during precision lifting Bauer, Hans Marquardt, Christian Hermsdörfer, Joachim Randerath, Jennifer When we manipulate familiar objects in our daily life, our grip force anticipates the physical demands right from the moment of contact with the object, indicating the existence of a memory for relevant object properties. This study explores the formation and consolidation of the memory processes that associate either familiar (size) or arbitrary object features (color) with object weight.<br />In the general task, participants repetitively lifted two differently weighted objects (580 and 280 g) in a pseudo-random order. Forty young healthy adults participated in this study and were randomly distributed into four groups: Color Cue Single task (CCS, blue and red, 9.8<sup>3</sup> cm<sup>3</sup>), Color Cue Dual task (CCD), No Cue (NC) and Size Cue (SC, 9.8<sup>3</sup> and 6<sup>3</sup> cm<sup>3</sup>) group. All groups performed a repetitive precision grasp-lift task and were retested with the same protocol after a 5-min pause. The CCD group was also required to simultaneously perform a memory task during each lift of differently weighted objects coded by color.<br />The results show that groups lifting objects with arbitrary or familiar features successfully formed the association between object weight and manipulated object features and incorporated this into grip force programming, as observed in the different scaling of grip force and grip force rate for different object weights. An arbitrary feature, i.e., color, can be sufficiently associated with object weight, however with less strength than the familiar feature of size. The simultaneous memory task impaired anticipatory force scaling during repetitive object lifting but did not jeopardize the learning process and the consolidation of the associative memory. Marquardt, Christian Randerath, Jennifer Li, Yong eng Li, Yong 2018-02-16T08:26:00Z Goldenberg, Georg Goldenberg, Georg 2009-01-03 Hermsdörfer, Joachim 2018-02-16T08:26:00Z

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