Fig. 2.

Psychological questionnaire scores and hippocampal grey matter. (A) Psychological questionnaire scores are displayed separately for the Tetris and therapy-only control groups, at 3 time points: before therapy (pre), directly after therapy (post) and approximately 6 months later (follow-up). (B) Increases in hippocampal volume after therapy were correlated with decreases in symptoms at follow-up in the Tetris group, but not in the therapy-only control group. Follow-up data were missing for 4 participants (2 Tetris, 2 therapy-only controls). Analyses based on 36 participants. BDI = Beck Depression Inventory; PDS = Post-traumatic Diagnostic Scale; STAI = State Trait Anxiety Inventory.