In my experience with my mother in a similar situation, I found the feeling she experienced from any activity she did would be with her for hours afterward, even if she couldn't remember what gave her the feeling. So, I always tried to make her day a pleasant one. She particularly enjoyed music and rides in the car and later, just being wheeled outside in the garden and smelling the flowers, breathing the fresh air, feeling the sunshine on her back. Even a tasty treat - ice cream or homemade pie would make her happy and while she would forget in minutes what she had eaten or done, the emotion of happiness would stay with her a long time, usually the rest of the day.
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