ERP investigation of study-test background mismatch during face recognition in schizophrenia

Perceptually or conceptually driven recognition: On the specificities of the memory deficit in schizophrenia

“…By demonstrating a familiarity deficit with highly conceptual material such as common objects, the present study is in line with the finding in other studies that dual process estimates are modulated by different types of contextual manipulations (e.g., Clark and Gronlund, 1996;McKenzie and Tiberghien, 2004), and adds support to the proposal of a familiarity deficit in schizophrenia specifically in conditions of study-test perceptual mismatch (Guillaume et al, 2007(Guillaume et al, , 2012a(Guillaume et al, , 2012b. In line with this proposal, much caution is warranted about the drawing of a straightforward distinction between a contextually based recollection and acontextually based familiarity.…”

“…Considered in light of the context memory deficit hypothesis (Waters et al, 2004;Wang et al, 2010), the present data are consistent with the spared picture superiority effect observed in schizophrenia (Weiss et al, 2002;Huron et al, 2003) and the fact that visual mismatch interferes with patients' recognition to a greater extent than that of controls (Lepage et al, 2005;Guillaume et al, 2007Guillaume et al, , 2012aGuillaume et al, , 2012b. They confirm also that the memory deficits observed in schizophrenia depend on the manipulation that determines how the target is to be interpreted (Bazin and Perruchet, 1996;Bazin et al, 2000).…”

“…The dissociation between priming and explicit memories could be critical in schizophrenia (Gras-Vincendon et al, 1994) where study-test perceptual mismatch disturbs patients' recognition to a greater extent than controls (Guillaume et al, 2012a(Guillaume et al, , 2012b. Impaired inhibition of irrelevant information has been associated with disorganization symptoms such as thought disorders (Baxter and Liddle, 1998;Bazin et al, 2000;Guillem et al, 2003;Guillaume et al, 2012a), whereas the source memory impairment is thought to be a key determinant of hallucinations and delusions, i.e., the most common symptoms of schizophrenia (Bentall, 1990).…”

“…Impaired inhibition of irrelevant information has been associated with disorganization symptoms such as thought disorders (Baxter and Liddle, 1998;Bazin et al, 2000;Guillem et al, 2003;Guillaume et al, 2012a), whereas the source memory impairment is thought to be a key determinant of hallucinations and delusions, i.e., the most common symptoms of schizophrenia (Bentall, 1990). It has been suggested that reduced integration of contextual information into episodic representations is one of the main causes of episodic memory impairment in schizophrenia (Clare et al, 1993;Danion et al, 1999;Titone et al, 2004;Talamini et al, 2010).…”

Target-context unitization effect on the familiarity-related FN400: A face recognition exclusion task

“…On the other hand, a number of studies offer strong support for the claim that the FN400 is not limited to conceptual priming or amodal familiarity (Bridger et al, 2012;Mecklinger et al, 2012;Rugg and Curran, 2007). For example, changes in the magnitude of the mid-frontal old-new effect have been observed using manipulations of perceptual congruency between study and test (Groh-Bordin et al, 2006;Guillaume et al, 2012b;Speer and Curran, 2007;Tsivilis et al, 2001) or perceptual manipulations (such as the background in object or face recognition) that seem unlikely to be explainable in terms of changes in conceptual priming (Ecker et al, 2007a,b;Guillaume et al, 2012a). Tsivilis et al (2001) reported a contextual sensitivity of familiarity (to object background) as reflected by the FN400 effect, and concluded that the effect indexes some process "downstream" from familiarity.…”