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. Author manuscript; available in PMC: 2022 Jun 1.
Published in final edited form as: Brain Imaging Behav. 2021 Jun;15(3):1622–1640. doi: 10.1007/s11682-020-00358-8

Fig.6.

Fig.6.

Associations between the hemodynamic response function (HRF) parameters and OCD severity measured by the Yale-Brown Obsessive Compulsive Scale (YBOCS) in the caudate head. (a) Association between the percentage change in HRF response height (RH) with treatment (i.e. post-treatment minus pre-treatment RH) and the percentage change in YBOCS score with treatment. Larger increases in RH with treatment were associated with larger decreases in OCD severity. R=−0.4396, R2=0.1932, P 0.0028. (b) Association between RH pre-treatment and OCD severity post-treatment. Higher RH before treatment was associated with lower OCD severity after treatment. R=−0.4790, R2=0.2294, P= 0.0010.