Interesting bit of info. Seems like you could do the same thin in daily life...
While attention bias modification trains attention either away from or toward threat, attention-control training implicitly teaches participants that threatening stimuli are irrelevant to performing their task. It requires them to attend equally to threatening and neutral stimuli. The study determined that this reduced symptoms by reducing attention bias variability. Attention control training balances such moment-to-moment fluctuations in attention bias from threat vigilance to threat avoidance, which correlated with the severity of PTSD symptoms and distinguished PTSD patients from healthy controls and patients with social anxiety or acute stress disorders.