Prompt

Create a realistic portrait of Haldan Keffer Hartline, a middle-aged American physiologist and neuroscientist, sitting in a study with a warm and intellectual atmosphere. He is wearing a pair of glasses and a suit, with a slight smile on his face, surrounded by books and scientific equipment. The background should include subtle hints of his achievements, such as a Nobel Prize medal or a certificate. The style should be formal and dignified, reflecting his professional accomplishments and personality.

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