Which characteristic is most likely to impact a stroke patient's engagement in cognitive treatment?

Moderate anosognosia for identified deficits is the characteristic most likely to impact a stroke patient's engagement in cognitive treatment because anosognosia involves a lack of awareness or recognition of one's own impairments or deficits. When patients do not recognize that they have a problem, they may lack the motivation or willingness to participate in cognitive therapies. This lack of self-awareness can lead to resistance or a diminished effort during treatment as the individual may not see the need for intervention or improvement.

In contrast, hemiparesis of the left arm and hand, mild word-finding difficulties, and moderate expressive aprosodia can affect a patient's physical functioning or communication but do not inherently diminish the patient’s insight or willingness to engage in cognitive rehabilitation. Therefore, while these other conditions can complicate recovery, it is the anosognosia that fundamentally undermines the patient's ability to engage in and commit to the cognitive treatment process itself.