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Pearson correlations between decline in verbal fluency and fluency characteristics after DBS.
| Letter fluency | Category fluency | |
|---|---|---|
| Words: 0–15 s | .59∗ | .58∗ |
| Words: 16–60 s | .75∗ | .74∗ |
| Cluster size | −.15 | .32 |
| Number of switches | .27 | .25 |
| Total errors | .12 | −.17 |
∗ p < .05.
