6th February 2024

A 78-year-old female with chronic alcoholism presents with poor memory.

A 78-year-old female with chronic alcoholism presents with poor memory. She reports that she is unable to remember recent events well. In addition, she has gaps in her memory. Her friend states that she will occasionally create scenarios when she forgets events and will be insistent that these events are true. 

Which of the following is the cause of the underlying condition?