Atypical unfamiliar face processing in Williams syndrome: What can it tell us about typical familiarity effects?

Abstract

Introduction: Familiar and unfamiliar face perception is typically dissociated by the relative

Viewing it differently: Social scene perception in Williams syndrome and Autism

“…Visual attention to the eyes may be implicated in other divergent abilities in face perception, such as the interpretation of gaze cues and expressions, where individuals with WS are more proficient than those with autism (Riby et al, 2008b). It may also help to explain the striking finding that individuals with WS are better at matching unfamiliar faces from internal features (eyes, nose etc) rather than external ones (hair, face outline), which is contrary to previous research in unfamiliar face matching (Riby et al, 2008a). Future work might consider exactly where those with WS look when performing unfamiliar face matching, to see what might be learned about how to do it better.…”

Do Raven's Colored Progressive Matrices function in the same way in typical and clinical populations? Insights from the intellectual disability field

“…This point must be stressed, given the growing emphasis on adaptation and norming of this test in many countries around the world (e.g., Barnabas et al, 1995;Costenbader & Ngari 2001;Cotton et al, 2005;Kazem et al, 2007;Knoetze et al, 2005;Uno et al, 2005). In addition, the RCPM is often used as a control or matching variable in comparative studies conducted in the intellectual disability field (e.g., Facon, 2002;Facon et al, 1993;Facon et al, 2002;Facon & Facon-Bollengier 1999;Farran 2005;Farran & Jarrold, 2004Jarrold et al, 2009;Numminen et al, 2001;Numminen et al, 2002;Riby et al, 2008;Stojanovik & van Ewijk 2008;Vicari et al, 2007). In this respect, the present study validates its use by showing that beyond the between-group equality of total score, the probability of correct response to practically every individual item is nearly the same for participants with and without intellectual disability.…”

Do Faces Capture the Attention of Individuals with Williams Syndrome or Autism? Evidence from Tracking Eye Movements

“…People with WS are often described as empathetic and sociable (Gosch & Pankau, 1997) although the way they interpret socially relevant facial cues of emotion, and encode faces for identity, does not appear typical (e.g. Karmiloff-Smith et al, 2004;Riby, Doherty-Sneddon & Bruce, 2008a). Eye-tracking evidence illustrates atypicalities of gaze behaviour towards the faces of human actors (Riby & Hancock, 2008;Riby & Hancock, submitted), corroborating evidence of prolonged face gaze (Mervis et al, 2003;DohertySneddon et al, submitted).…”