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Remembering pictures of real and unreal faces: Some practical and theoretical considerations.

Three experiments are reported which explore the effects of lines on faces upon recognition memory. In Expt I a comparison of recognition memory for photographs of real faces with memory for Photofit faces indicated that memory for the former is significantly better. Experiment II examined one possible explanation for the first results by comparing memory for faces with memory for the same faces containing lines representing the feature boundaries of Photofit faces. The unlined faces were recognized more readily. This result was replicated in Expt III which also indicated that random lines produced the same deleterious effect on face memory as the systematic Photofit-type lines. 
 
The practical and theoretical implications of these results are discussed in relation to forensic face recall systems and pattern recognition.