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Table 4 Some proposed ‘y’ codes in a ‘PMC x.y.z’ taxonomy

From: A new conception and subsequent taxonomy of clinical psychological problems

x.1.z Avoidance (implying exposure therapy)
x.2.z Erroneous Cognitions (implying psychoeducation, cognitive restructuring, thought stopping, self-talk coaching, etc.)
x.3.z Selective Attention/Hypervigilance/Preoccupation (implying attentional control training, thought stopping, etc.)
x.4.z Sleep Disturbance
x.5.z Problematic Reinforcement
x.6.z Narrowed Coping Repertoire