Depression in bipolar disorder can also manifest itself in cognitive disorders, e.g., concentration, attention, and memory. These symptoms can cause anxiety in both the patient and their loved ones, who sometimes try to “force” patients to read newspapers or watch films.
In the case of depression, there is no such need because these symptoms usually disappear completely with the improvement of the mental state.
It is worth making the patient aware of this, especially in the case of deeper depression, when they may have a constantly resurfacing fear that they have irretrievably lost their intellect, that they have “gone numb” and will not be able to return to their previous mental condition, return to work and previous activities.