Small perturbations in a finger-tapping task reveal inherent nonlinearities of the underlying error correction mechanism
Time processing in the few hundred milliseconds range is involved in the human skill of sensorimotor synchronization, like playing music in an ensemble or finger tapping to an external beat. In finger tapping, a mechanistic explanation in biologically plausible terms of how the brain achieves synchr...
Guardado en:
| Publicado: |
2013
|
|---|---|
| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01679457_v32_n1_p21_Bavassi http://hdl.handle.net/20.500.12110/paper_01679457_v32_n1_p21_Bavassi |
| Aporte de: |
| id |
paper:paper_01679457_v32_n1_p21_Bavassi |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_01679457_v32_n1_p21_Bavassi2023-06-08T15:17:06Z Small perturbations in a finger-tapping task reveal inherent nonlinearities of the underlying error correction mechanism Dynamical systems analysis Error correction Modeling Synchronization Tapping adult article auditory feedback behavior female finger genetic algorithm human male mathematical model nonlinear system prediction sensorimotor function simulation Acoustic Stimulation Adaptation, Psychological Attention Awareness Discrimination (Psychology) Humans Memory, Short-Term Models, Theoretical Motor Activity Nonlinear Dynamics Psychomotor Performance Subliminal Stimulation Time Perception Time processing in the few hundred milliseconds range is involved in the human skill of sensorimotor synchronization, like playing music in an ensemble or finger tapping to an external beat. In finger tapping, a mechanistic explanation in biologically plausible terms of how the brain achieves synchronization is still missing despite considerable research. In this work we show that nonlinear effects are important for the recovery of synchronization following a perturbation (a step change in stimulus period), even for perturbation magnitudes smaller than 10% of the period, which is well below the amount of perturbation needed to evoke other nonlinear effects like saturation. We build a nonlinear mathematical model for the error correction mechanism and test its predictions, and further propose a framework that allows us to unify the description of the three common types of perturbations. While previous authors have used two different model mechanisms for fitting different perturbation types, or have fitted different parameter value sets for different perturbation magnitudes, we propose the first unified description of the behavior following all perturbation types and magnitudes as the dynamical response of a compound model with fixed terms and a single set of parameter values. © 2012 Elsevier B.V. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01679457_v32_n1_p21_Bavassi http://hdl.handle.net/20.500.12110/paper_01679457_v32_n1_p21_Bavassi |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Dynamical systems analysis Error correction Modeling Synchronization Tapping adult article auditory feedback behavior female finger genetic algorithm human male mathematical model nonlinear system prediction sensorimotor function simulation Acoustic Stimulation Adaptation, Psychological Attention Awareness Discrimination (Psychology) Humans Memory, Short-Term Models, Theoretical Motor Activity Nonlinear Dynamics Psychomotor Performance Subliminal Stimulation Time Perception |
| spellingShingle |
Dynamical systems analysis Error correction Modeling Synchronization Tapping adult article auditory feedback behavior female finger genetic algorithm human male mathematical model nonlinear system prediction sensorimotor function simulation Acoustic Stimulation Adaptation, Psychological Attention Awareness Discrimination (Psychology) Humans Memory, Short-Term Models, Theoretical Motor Activity Nonlinear Dynamics Psychomotor Performance Subliminal Stimulation Time Perception Small perturbations in a finger-tapping task reveal inherent nonlinearities of the underlying error correction mechanism |
| topic_facet |
Dynamical systems analysis Error correction Modeling Synchronization Tapping adult article auditory feedback behavior female finger genetic algorithm human male mathematical model nonlinear system prediction sensorimotor function simulation Acoustic Stimulation Adaptation, Psychological Attention Awareness Discrimination (Psychology) Humans Memory, Short-Term Models, Theoretical Motor Activity Nonlinear Dynamics Psychomotor Performance Subliminal Stimulation Time Perception |
| description |
Time processing in the few hundred milliseconds range is involved in the human skill of sensorimotor synchronization, like playing music in an ensemble or finger tapping to an external beat. In finger tapping, a mechanistic explanation in biologically plausible terms of how the brain achieves synchronization is still missing despite considerable research. In this work we show that nonlinear effects are important for the recovery of synchronization following a perturbation (a step change in stimulus period), even for perturbation magnitudes smaller than 10% of the period, which is well below the amount of perturbation needed to evoke other nonlinear effects like saturation. We build a nonlinear mathematical model for the error correction mechanism and test its predictions, and further propose a framework that allows us to unify the description of the three common types of perturbations. While previous authors have used two different model mechanisms for fitting different perturbation types, or have fitted different parameter value sets for different perturbation magnitudes, we propose the first unified description of the behavior following all perturbation types and magnitudes as the dynamical response of a compound model with fixed terms and a single set of parameter values. © 2012 Elsevier B.V. |
| title |
Small perturbations in a finger-tapping task reveal inherent nonlinearities of the underlying error correction mechanism |
| title_short |
Small perturbations in a finger-tapping task reveal inherent nonlinearities of the underlying error correction mechanism |
| title_full |
Small perturbations in a finger-tapping task reveal inherent nonlinearities of the underlying error correction mechanism |
| title_fullStr |
Small perturbations in a finger-tapping task reveal inherent nonlinearities of the underlying error correction mechanism |
| title_full_unstemmed |
Small perturbations in a finger-tapping task reveal inherent nonlinearities of the underlying error correction mechanism |
| title_sort |
small perturbations in a finger-tapping task reveal inherent nonlinearities of the underlying error correction mechanism |
| publishDate |
2013 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01679457_v32_n1_p21_Bavassi http://hdl.handle.net/20.500.12110/paper_01679457_v32_n1_p21_Bavassi |
| _version_ |
1768545414526533632 |