Which of the following correctly lists a sign of Alzheimer’s dementia related to familiarity?

The sign of Alzheimer's dementia related to familiarity is the progressive inability to recognize friends or family. In Alzheimer's disease, cognitive decline typically manifests as difficulties with memory, particularly as the disease progresses. One of the hallmark features is a gradual loss of the ability to recognize familiar faces, including close family members and friends, which can lead to emotional distress both for the individual and their loved ones.

As Alzheimer's disease progresses, individuals may struggle to recall even the names or relationships of those they have known their entire lives. This specific cognitive challenge highlights the impact of the disease on social interactions and personal relationships, illustrating the fundamental disruptions to the sense of self and emotional connections.

Other options, while related to cognitive decline, do not specifically focus on the recognition aspect. Increased forgetfulness is a general symptom and can be present in various forms of cognitive impairment. Dysphagia pertains to swallowing difficulties and is not directly a sign of problems with familiarity or recognition. Oral fixations typically relate to behaviors rather than cognitive recognition, making them less relevant in this context. Therefore, the progressive inability to recognize friends or family correctly identifies a sign of Alzheimer's dementia related to familiarity.