I too recommend Joel Turner's stuff. The Hunt Backcountry
Podcast Episode 087 "The Cure for Target Panic" with Joel Turner and
Episode 242 How To Make A Good Shot When It Matters Most feature Joel in both, and would be a good starting point to listen to his material.
Also if shooting a wrist release, Jon Dudley teaches that, rather than using the pad of your index finger to activate the trigger, hook your finger around the trigger so that the second bone contacts the trigger - and then don't pull the finger to activate the trigger, but rather use your shoulder muscle to draw back slowly until the trigger is activated by back tension.