Table 2.

Correlations between lesion extent and changes in song metrics

Lesion extent versusPearson’s correlation, rCorrelation significance, p
Final pitch change0.42610.1466
Baseline variance0.2960.3261
Final variance–0.04980.8716
Percent increase in variance–0.42720.1454
  • The lesion extent for each bird was defined as the proportion of sections with OD ratio below the 5th percentile of OD ratios for the population of saline-injected birds. A Pearson’s correlation coefficient (r) and the associated p value is reported for this lesion extent versus changes in song metrics. Variances were computed across either 3 d of baseline or the final 3 d of the shift period.