Arikan, B. E., van Kemenade, B., Fiehler, K., Kircher, T., Drewing, K.*, & Straube, B.* (accepted). Different contributions of efferent and reafferent feedback to sensorimotor temporal recalibration. Scientific Reports *contributed equally
Adaptation to delays between actions and sensory feedback is important for efficiently interacting with our environment. Adaptation may rely on predictions of action-feedback pairing (motor-sensory component), or predictions of tactile-proprioceptive sensation from the action and sensory feedback of the action (inter-sensory component). Reliability of temporal information might differ across sensory feedback modalities (e.g. auditory or visual), which in turn influences adaptation. Here, we investigated the role of motor-sensory and inter-sensory components on sensorimotor temporal recalibration for motor-auditory (button press-tone) and motor-visual (button press-Gabor patch) events. In the adaptation phase of the experiment, action-feedback pairs were presented with systematic temporal delays (0ms or 150ms). In the subsequent test phase, audio/visual feedback of the action were presented with variable delays. The participants were then asked whether they detected a delay. To disentangle motor-sensory from inter-sensory component, we varied movements (active button press or passive depression of button) at adaptation and test. Our results suggest that motor-auditory recalibration is mainly driven by the motor-sensory component, whereas motor-visual recalibration is mainly driven by the inter-sensory component. Recalibration transferred from vision to audition, but not from audition to vision. These results indicate that motor-sensory and inter-sensory components contribute to recalibration in a modality-dependent manner.
Keywords: adaptation, auditory, visual, cross-modal transfer, efference copy
See also: Arikan, B. E., van Kemenade, B., Fiehler, K., Kircher, T., Drewing, K., & Straube, B. (2021). Sensorimotor temporal recalibration: the contribution of motor-sensory and inter-sensory components. BioRxiv, 2021.03.26.437189. https://doi.org/10.1101/2021.03.26.437189