Why did Charlotte Perkins Gilman use first-person narration in her short story "The Yellow Wallpaper"?

In "The Yellow Wallpaper" By Charlotte Perkins Gilman and "The Black

Cat" By Edgar Allen Poe, two short and sinister stories, 1st person

narration is used by both authors to create atmospheric tension and

unease. By using 1st person narration, a story told through the eyes

of one person present in that story, the authors can get far more

intimate and detailed in the individual characters feelings and

emotions. This makes it an invaluable style of writing if the readers

are intended to empathise with the character. It is controlled

voyeurism, peering into another's consciences and seeing the world

through their eyes.