Thatcher effect (Q2066298)

phenomenon where it becomes more difficult to detect local feature changes in an upside-down face, despite identical changes being obvious in an upright face

Thatcher illusion

Language	Label	Description	Also known as
English	Thatcher effect	phenomenon where it becomes more difficult to detect local feature changes in an upside-down face, despite identical changes being obvious in an upright face	Thatcher illusion