Limited persistence of the sensorimotor memory when transferred across prehension tasks
Research Highlights
► We studied the persistence of sensorimotor memory when transferred across tasks. ► The memory from hefting scaled the lift force rates during a lift task after 10 sec. ► The memory from hefting decayed for a lift performed 20 minutes later. ► This may indicate weakened memory due to sensory signals from the tasks. ► The memory may be influenced by visual prior estimates of size-weight representation.
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Time-course of pain threshold after continuous theta burst stimulation of primary somatosensory cortex in pain-free subjects
2020, Neuroscience LettersCitation Excerpt :We estimated active motor threshold (aMT) to set the stimulation intensity of continuous theta burst stimulation. For aMT estimation, subjects were instructed to exert 20 % of their maximum voluntary force (MVF) on a grip device instrumented with force transducers (Nano-25; ATI Industrial Automation, Garner, NC, 1 kHz sampling rate) with the tips of index finger and thumb using visual feedback provided on a computer monitor [26]. Each subject was instructed to grip the device as hard as possible for one second followed by a break (∼1 min).
Sensorimotor memory for object weight is based on previous experience during lifting, not holding
2019, NeuropsychologiaCitation Excerpt :On the other hand, another experiment contradicts these results by failing to disrupt sensorimotor memory with an isometric force task (Cole et al., 2008). Furthermore, there is evidence that sensorimotor memory for objects can be transferred between hands (Chang et al., 2008; Gordon et al., 1994; Green et al., 2010) and there is also some transfer across tasks (Parikh and Cole, 2011). It has also been suggested that sensorimotor memory represents a memory of visual object size, as participants adjusted their forces correctly to a slightly smaller object without consciously noting the size change (Cole, 2008).
Force control in object manipulation-A model for the study of sensorimotor control strategies
2013, Neuroscience and Biobehavioral ReviewsCitation Excerpt :This observation supports the notion that lift forces and grip force differ in their relationship with heaviness perception. There is recent evidence that the predictive programming in the grip-lift task operates independently for grip and lift force (Cole et al., 2008; Chang et al., 2008; Parikh and Cole, 2011; Quaney et al., 2003; Nowak et al., 2004a,b; Rabe et al., 2009). The object-specific force scaling based on central representations of both object and body dynamics (internal models) is obvious when grasping and lifting known objects (Gordon et al., 1993).
Transfer of learning between hands to handle a novel object in old age
2013, Experimental Brain Research