I'm currently writing a paper and one of the points is about cognitive performance being impeded on in general anxiety disorder patients.
The issue I have is that I found a great paper:
The stressed prefrontal cortex and goal-directed behaviour: acute psychosocial stress impairs the flexible implementation of task goals
that has identified how stress hinders cognitive flexibility.
At the same time though the consensus, drawn by another paper is that
Experimentally induced and real-world anxiety have no demonstrable effect on goal-directed behaviour
Basically one papers points out that stress works against cognitive flexibility and goal directed behaviour, while anxiety seems to have no effect. The acute anxiety paper references the stress paper, suggesting their findings are complementary rather than mutually exclusive.
Im not sure how this can make sense, aren't anxiety and stress co-occuring phenomena in GAD?