But then he devised the critical test: He showed subjects images of food like this and compared them to images with very similar color and shape, but that weren't food, like these.
Pero despois ideou unha proba determinante: Amosáballes aos suxeitos imaxes de comida coma estas, e mais imaxes con cores e formas moi semellantes, pero que non eran comida, coma estas.