Individual differences are often ignored, but they can have real consequences. It appears that there are individual differences in face recognition ability:
“Research carried out in a number of labs over the last 15 years has revealed that people vary greatly in their ability to recognize faces. These individual differences in face recognition ability have interested researchers for several reasons. First, individual differences provide a means to try to better understand how face recognition is carried out, how it develops and which genes contribute to it (Yovel, Wilmer, & Duchaine, 2014). Second, this substantial variation in face recognition skills from person to person has important implications for a number of critical occupations and for how we interpret eyewitness testimony.”
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