Final answer:
Alfred Kinsey previously dominated sexual research in the US until the 1950s. His large-scale survey research and publications sparked controversy and opened up discussions on human sexuality.
Step-by-step explanation:
In the US, Alfred Kinsey previously dominated sexual research until the 1950s. He conducted large-scale survey research and published two books, Sexual Behavior in the Human Male and Sexual Behavior in the Human Female, in 1948 and 1953, respectively. His research findings sparked controversy and opened up conversations about human sexuality.