Updating of Implicit Adaptation Processes through Erroneous Numeric Feedback
J Mot Behav. 2023 Jul 13:1-18. doi: 10.1080/00222895.2023.2232739. Online ahead of print.ABSTRACTThere is debate about how implicit and explicit processes interact in sensorimotor adaptation, implicating how error signals drive learning. Target error information is thought to primarily influence explicit processes, therefore manipulations to the veracity of this information should impact adaptation but not implicit recalibration (i.e. after-effects). Thirty participants across three groups initially adapted to rotated cursor feedback. Then we manipulated numeric target error through knowledge of results (KR) feedback, wher...
Source: Journal of Motor Behavior - July 13, 2023 Category: Neurology Authors: Beverley C Larssen Nicola J Hodges Source Type: research

Editorial Comment
J Mot Behav. 2023 Jul 11:1. doi: 10.1080/00222895.2023.2233745. Online ahead of print.NO ABSTRACTPMID:37433561 | DOI:10.1080/00222895.2023.2233745 (Source: Journal of Motor Behavior)
Source: Journal of Motor Behavior - July 11, 2023 Category: Neurology Authors: Helene M Sisti Source Type: research

Variability of Postural Coordination in Dual-Task Paradigm
In this study, 30 healthy young volunteers were recruited. The experimental protocol consisted of three random conditions: quiet standing on a narrow wooden block without a cognitive task (NB), quiet standing on a narrow wooden block with an easy cognitive task (NBE), and quiet standing on a narrow wooden block with a difficult cognitive task (NBD). Results showed that CoMAP sway in NB condition was higher than both NBE and NBD conditions (p = .001). VORT in NB condition was higher than NBE and NBD conditions (p = .003). VORT in NB condition was higher than NBE and NBD conditions (p = .003). VUCM was unchanged in all condi...
Source: Journal of Motor Behavior - July 10, 2023 Category: Neurology Authors: Rezvan Azimi Behrouz Abdoli Mohammad Ali Sanjari Reza Khosrowabadi Source Type: research

The Strategy of Human Movement Control and Teaching Motor Skills in Norm and Pathology
J Mot Behav. 2023 Jul 2:1-5. doi: 10.1080/00222895.2023.2229769. Online ahead of print.ABSTRACTThe strategy used by the brain to organize human goal-directed movements is still debated. Here, I argue that without the knowledge of this strategy, teaching movement skills required in complex sports activities and for rehabilitation of motor disorders remains an art and can often result in inefficient techniques and misleading instructions. However, the leading joint hypothesis offers a solution to this problem. It suggests that the control strategy consists in rotation of a single ('leading') joint actively and using the biom...
Source: Journal of Motor Behavior - July 2, 2023 Category: Neurology Authors: Natalia Dounskaia Source Type: research

A Violation of Fitts' Law is Maintained in Ecologically Valid Settings
J Mot Behav. 2023 Jul 2:1-13. doi: 10.1080/00222895.2023.2210530. Online ahead of print.ABSTRACTA 'violation' of Fitts' Law, or Fitts' Equation, occurs when each potential target location is outlined before and during a reaching movement. Past studies have measured the violation in highly controlled laboratory environments, limiting the generalizability of findings. The purpose of the study was to replicate the violation of Fitts' Equation in the homes of participants using a novel portable apparatus during the COVID-19 pandemic. Movements were measured independently with an accelerometer and touch screen, which allowed fo...
Source: Journal of Motor Behavior - July 2, 2023 Category: Neurology Authors: Quinn Malone Cheryl M Glazebrook Steven R Passmore Source Type: research