Event-related potentials and event-related oscillations during identity and facial emotional processing in schizophrenia

Ramos-Loyo, Julieta; González-Garrido, Andrés A.; Loyo, Luis Miguel Sánchez; Medina, Virginia Tejada; Başar-Eroğlu, Canan

doi:10.1016/j.ijpsycho.2008.07.008

Cited by 48 publications

(44 citation statements)

References 44 publications

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“…In contrast, other studies did not find any differences in the P1 (Herrmann et al , 2004; Johnston et al , 2005; Bediou et al , 2007; Turetsky et al , 2007; Wynn et al , 2008) or N170 response (Streit et al , 2001; Wynn et al , 2008; Ramos-Loyo et al , 2009) between patients and controls.…”

Section: Discussionmentioning

confidence: 61%

“…Deficits in early visual processing of faces in schizophrenia have been reported in a number of studies, with the majority reporting N170 reductions (Herrmann et al , 2004; Johnston et al , 2005; Campanella et al , 2006; Bediou et al , 2007; Caharel et al , 2007; Turetsky et al , 2007; Lynn and Salisbury, 2008), but some also found decreased P1 (Campanella et al , 2006; Caharel et al , 2007) and increased P2 (Herrmann et al , 2004; Ramos-Loyo et al , 2009) amplitudes. In contrast, other studies did not find any differences in the P1 (Herrmann et al , 2004; Johnston et al , 2005; Bediou et al , 2007; Turetsky et al , 2007; Wynn et al , 2008) or N170 response (Streit et al , 2001; Wynn et al , 2008; Ramos-Loyo et al , 2009) between patients and controls.…”

Section: Discussionmentioning

confidence: 98%

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Modulation of affective face processing deficits in Schizophrenia by congruent emotional sounds

Müller

Kellermann

Seligman

et al. 2012

Soc Cogn Affect Neurosci

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Schizophrenia is a psychiatric disorder resulting in prominent impairments in social functioning. Thus, clinical research has focused on underlying deficits of emotion processing and their linkage to specific symptoms and neurobiological dysfunctions. Although there is substantial research investigating impairments in unimodal affect recognition, studies in schizophrenia exploring crossmodal emotion processing are rare. Therefore, event-related potentials were measured in 15 patients with schizophrenia and 15 healthy controls while rating the expression of happy, fearful and neutral faces and concurrently being distracted by emotional or neutral sounds. Compared with controls, patients with schizophrenia revealed significantly decreased P1 and increased P2 amplitudes in response to all faces, independent of emotion or concurrent sound. Analyzing these effects with regard to audiovisual (in)congruence revealed that P1 amplitudes in patients were only reduced in response to emotionally incongruent stimulus pairs, whereas similar amplitudes between groups could be observed for congruent conditions. Correlation analyses revealed a significant negative correlation between general symptom severity (Brief Psychiatric Rating Scale-V4) and P1 amplitudes in response to congruent audiovisual stimulus pairs. These results indicate that early visual processing deficits in schizophrenia are apparent during emotion processing but, depending on symptom severity, these deficits can be restored by presenting concurrent emotionally congruent sounds.

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Section: Discussionmentioning

confidence: 61%

Section: Discussionmentioning

confidence: 98%

Modulation of affective face processing deficits in Schizophrenia by congruent emotional sounds

Müller

Kellermann

Seligman

et al. 2012

Soc Cogn Affect Neurosci

View full text Add to dashboard Cite

show abstract

“…The highest consensus is that slow wave activity, including theta, in patients is enhanced during rest (Boutros et al, 2008). Task-related theta activity of patients may be reduced (A. T. Bates, Kiehl, Laurens, & Liddle, 2009;Doege, Jansen, Mallikarjun, Liddle, & Liddle, 2010;Doege et al, 2010;Haenschel et al, 2009;Kaser et al, 2013;Ramos-Loyo, Gonzalez-Garrido, Sanchez-Loyo, Medina, & Basar-Eroglu, 2009;Schmiedt, Brand, Hildebrandt, & Basar-Eroglu, 2005) or enhanced (Fehr et al, 2003;L.E. Hong, Moran, Du, O'Donnell, & Summerfelt, 2012;L.…”

Section: Theta Oscillations In Schizophreniamentioning

confidence: 99%

Theta response in schizophrenia is indifferent to perceptual illusion

Mathes

Schmiedt-Fehr

Kedilaya

et al. 2016

Clinical Neurophysiology

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“…Accordingly, changes in oscillatory brain activity in patients with schizophrenia are multifold and are reflected in multiple frequency bands, such as delta, theta, alpha and gamma (e.g., Basar-Eroglu et al, 2009;Herrmann and Demiralp, 2005;Ramos-Loyo et al, 2009). Changes in patients with schizophrenia have been described with regard to the evoked response (a measure of the amplitude after averaging over trials), total response (a measure of the amplitude before averaging over trials), induced response (the evoked response subtracted from the total response) and the degree of phase locking (a measure of the similarity of the oscillatory response over trials that is closely related to the evoked response; see Basar-Eroglu et al, 1996b;Herrmann et al, 1999;Martinez-Montes et al, 2008 for detailed explanation of terms).…”

Section: Introductionmentioning

confidence: 99%