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Are Faces Special?

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Are faces special? Critically evaluate the evidence that we have evolved a specialised neural network dedicated to processing faces. Brian Marron, 11461992, SF TSM.
INTRODUCTION
Processing faces is extremely important to humans as social beings. We are able to put and identity on thousands of faces (Gazzaniga, 2002) with ease, something we might take for granted. The value of this ability can be better understood when the world is viewed through the eyes of somebody with prosopagnosia, the inability to recognise faces. The following quotation from David Fine, a prosopagnosic describing the difficulty associated with the disorder.
“I often fail to recognise my children or even my wife … I have failed to acknowledge friends and, more …show more content…

They also said that to allow for this better discrimination, the stimulus must be presented upright. People demonstrate the Face Inversion Effect because they are expert at processing faces. And so, Diamond and Carey asserted faces are not special, merely exemplars of a homogenous group of stimuli of which people tend to be expert. Greebles were created by Gauthier and Tarr (1997) from a need to control for expertise in experiments. Greebles are a group of homogeneous stimuli that do not resemble faces but do have several properties of faces like symmetry and the same number of features. They conducted experiments to see how dependence on configural information increased with expertise. They agreed with Diamond and Carey that faces are not intrinsically special but that humans are particularly expert at processing faces and so rely more on configural information to discriminate between one person and another.
However, Gauthier & Tarr and Diamond & Carey’s methodologies have come under much criticism especially from Robbins and McKone. Robbins and McKone argue that they have found major flaws in the expert hypothesis. The differing views of these psychologists are outlined in fiery academic exchanges (Robbins & McKone 2007), (McKone & Robbins, 2007), (Gauthier & Baukach, 2007). As a

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