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. 2022 Sep 12;11:e75515. doi: 10.7554/eLife.75515

Figure 5. TRF correlations are highest in response to familiar songs.

(A) Normalized (to the maximum value per rating/participant), averaged behavioral ratings of enjoyment, familiarity and easiness to tap to the beat (± SEM). No significant differences across tempo conditions were observed (repeated-measure ANOVA with Greenhouse-Geiser correction). (B) Mean TRF correlations topography across all ratings (based on the analysis of 15 trials with highest and lowest ratings per behavioral measure). (C) Violin plots of TRF correlations comparing low vs. highly enjoyed, low vs. highly familiar, and subjectively difficult vs. easy beat trials. Strongest TRF correlations were found in response to familiar music and music with an easy-to-perceive beat (n=34, paired-sample t-test, *pFDR <0.05). Boxplots indicate median, 25th and 75th percentile. (D) Mean TRFs (± SEM) for time lags between 0–400ms of more and less enjoyable music songs. (E)-(F) Same as (D) for trials with low vs. high familiarity and difficult vs. easy beat ratings.

Figure 5—source data 1. Source data of the behavioral ratings and TRF correlations.

Figure 5.

Figure 5—figure supplement 1. Significant differences of FFT amplitudes at stimulus-relevant frequencies between differently rated trials.

Figure 5—figure supplement 1.

Z-scored average FFT amplitudes at the stimulation tempo and first harmonic of the 15 highest vs. lowest ratings per behavioral rating category (n=34, low vs. highly enjoyed, low vs. highly familiar, and subjectively difficult vs. easy beat trials). Significant differences were observed for all pairwise comparisons (paired-sample t-test, pFDR≈0.01).
Figure 5—figure supplement 2. Musical training did not have an effect on TRF correlations regardless of the musical feature.

Figure 5—figure supplement 2.

Scatter plot between the general sophistication index (F7, Gold-MSI) and mean TRF correlations per participant (n=34). No significant correlations between the Gold-MSI and TRF correlations were observed in response to the (A) amplitude envelope, (B) first derivative, (C) beat onsets and (D) spectral flux.
Figure 5—figure supplement 3. Music tapping rate across participants.

Figure 5—figure supplement 3.

(A)-(B) Illustrative histograms of the relative number of trials per tapped music rate of two participants with a fitted skewed Gaussian. The modes indicate the preferred music tapping rate and the width the shape of the fitted Gaussian. (C) Mean music-tapping histogram across all participants (n=29, 5 participants were excluded from the music tapping analysis due to inconsistent taps). The mean preferred tapping frequency was 1.55 Hz.