Changes in reappraisal mediated the effects of Panoply , but not the expressive writing platform , for both outcomes of depression ( ab = -1.04 , SE 0.58 , 95 % CI -2.67 to -.12 ) and perseverative thinking ( ab = -1.02 , SE 0.61 , 95 % CI -2.88 to -.20 ) .