Motor Reproduction of Time Interval Depends on Internal Temporal Cues in the Brain: Sensorimotor Imagery in Rhythm

Abstract

How the human brain perceives time intervals is a fascinating topic that has been explored in many fields of study. This study examined how time intervals are replicated in three conditions: with no internalized cue (PT), with an internalized cue without a beat (AS), and with an internalized cue with a beat (RS). In PT, participants accurately reproduced the time intervals up to approximately 3 s. Over 3 s, however, the reproduction errors became increasingly negative. In RS, longer presentations of over 5.6 s and 13 beats induced accurate time intervals in reproductions. This suggests longer exposure to beat presentation leads to stable internalization and efficiency in the sensorimotor processing of perception and reproduction. In AS, up to approximately 3 s, the results were similar to those of RS whereas over 3 s, the results shifted and became similar to those of PT. The time intervals between the first two stimuli indicate that the strategies of time-interval reproduction in AS may shift from RS to PT. Neural basis underlying the reproduction of time intervals without a beat may depend on length of time interval between adjacent stimuli in sequences.

Entropy, Uncertainty, and the Depth of Implicit Knowledge on Musical Creativity: Computational Study of Improvisation in Melody and Rhythm

“…This hypothesis may be supported in the models of temporal sequence with pitches. No correlation was detected in temporal sequence (Daikoku et al, 2018) with pitches. Future study is needed to investigate how rhythms affect improvisational music, and how the SL of rhythms interact with those of pitches.…”

Musical Creativity and Depth of Implicit Knowledge: Spectral and Temporal Individualities in Improvisation

“…Other studies also detected neural correlates to the motor control for auditory prediction and production when playing the piano (Bianco et al, 2016 ), and to improvisational creativity of music (Pinho et al, 2015 ; Adhikari et al, 2016 ; Lopata et al, 2017 ). These studies suggest that the mental representation of a musician's knowledge facilitates optimisation of motor actions (Daikoku et al, 2018 ) in the framework of information theory on brain function. The findings of the present study were based on relative but not absolute stochastic feature of music.…”

Simple and Cheap Setup for Timing Tapping Responses Synchronized to Auditory Stimuli

“…Other paradigms that fit into the general experimental setup scheme proposed are auditory Go/No-Go (Barry, De Blasio, & Borchard, 2014) tasks and auditory time interval reproduction (Daikoku, Takahashi, Tarumoto, & Yasuda, 2018). The Go/No-Go task presents one of two stimuli, with one designated as target.…”

“…Participants were asked to tap as soon as they heard the target stimulus or ignore it otherwise. Schematic time interval reproduction task inDaikoku et al (2018). Participants were asked to reproduce the heard time interval by performing two taps.…”