New York Times: An early researcher of sleep disorders and the role of dreams in emotional health, she studied her subjects’ nights to help them turn their days around.

She knew that dreams played a role in regulating a person’s emotions and sense of self. When sleep was disrupted, dreams could not do their work, stitching the messy narratives of life into an emotionally coherent tapestry.

Rosalind Falk was born on Dec. 30, 1922, in New York City, the second-youngest of four children. Her mother, Stella (Hein) Falk, was a poet; her father, Henry, had trained as a lawyer but became a successful real estate developer in Toronto.