Face-elicited ERPs and affective attitude: brain electric microstate and tomography analyses

Pizzagalli, Diego A.; Lehmann, Dietrich; Koenig, Thomas; Regard, Marianne; Pascual-Marqui, Roberto D.

doi:10.1016/s1388-2457(99)00252-7

Cited by 81 publications

(43 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Prior studies have produced LORETA estimates consistent with those found in functional hemodynamic imaging studies, reflecting simple visual and auditory processing (Pascual-Marqui et al, 1994), epileptic discharges (Worrell et al, 2000), as well as performance in various cognitive tasks (Pizzagalli, Lehmann, Koenig, Regard, & Pascual-Marqui, 2000;Strik, Fallgatter, Brandeis, & Pascual-Marqui, 1998). LORETA has also been cross-validated in a study with both ERP and functional magnetic resonance imaging (fMRI), in that Topography of differential ERPs (fearful-happy) over the interval from 300 to 400 msec.…”

Section: Low-resolution Brain Electromagnetic Tomography Analysismentioning

confidence: 71%

“…In LORETA, a three-shell spherical head model (Pizzagalli et al, 2000;Pascual-Marqui et al, 1999) is used with electrode coordinates derived from crossregistrations between spherical and realistic head geometry (Towle et al, 1993). The head model has been registered to a standardized stereotactic space (Talairach & Tournoux, 1988), such that current density in each of 2394 voxels (7 Â 7 Â 7 mm) in the brain can be estimated (Pourtois et al, 2004;Pizzagalli, Greischar, & Davidson, 2003).…”

Section: Low-resolution Brain Electromagnetic Tomography Analysismentioning

confidence: 99%

See 1 more Smart Citation

Neural and Behavioral Evidence for Affective Priming from Unconsciously Perceived Emotional Facial Expressions and the Influence of Trait Anxiety

Zinbarg

Boehm

et al. 2008

Journal of Cognitive Neuroscience

135

View full text Add to dashboard Cite

Abstract& Affective judgments can often be influenced by emotional information people unconsciously perceive, but the neural mechanisms responsible for these effects and how they are modulated by individual differences in sensitivity to threat are unclear. Here we studied subliminal affective priming by recording brain potentials to surprise faces preceded by 30-msec happy or fearful prime faces. Participants showed valenceconsistent changes in affective ratings of surprise faces, although they reported no knowledge of prime-face expressions, nor could they discriminate between prime-face expressions in a forced-choice test. In conjunction with the priming effect on affective evaluation, larger occipital P1 potentials at 145-175 msec were found with fearful than with happy primes, and source analyses implicated the bilateral extrastriate cortex in this effect.

show abstract

Section: Low-resolution Brain Electromagnetic Tomography Analysismentioning

confidence: 71%

Section: Low-resolution Brain Electromagnetic Tomography Analysismentioning

confidence: 99%

Neural and Behavioral Evidence for Affective Priming from Unconsciously Perceived Emotional Facial Expressions and the Influence of Trait Anxiety

Zinbarg

Boehm

et al. 2008

Journal of Cognitive Neuroscience

135

View full text Add to dashboard Cite

show abstract

“…We used LORETA to estimate the intracerebral sources of EEG activity. While different analysing models have advantages and disadvantages (Michel et al 2001), several recent studies have successfully employed LORETA as a reliable tool for localising cortical activation in various tasks ranging from visual and auditory to complex cognitive tasks (Pizzagalli et al 2000;Vitacco et al 2002;Esslen et al 2004;Mulert et al 2004a). Interestingly, the combined use of LORETA and fMRI revealed similar cortical maps to those obtained with fMRI and LORETA separately (Vitacco et al 2002;Mulert et al 2002).…”

Section: Discussionmentioning

confidence: 99%

Neuronal Modifications During Visuomotor Association Learning Assessed by Electric Brain Tomography

et al. 2006

View full text Add to dashboard Cite

Summary: In everyday life specific situations need specific reactions. Through repetitive practice, such stimulus-response associations can be learned and performed automatically. The aim of the present EEG study was the illustration of learning dependent modifications in neuronal pathways during short-term practice of visuomotor associations. Participants performed a visuomotor association task including four visual stimuli, which should be associated with four keys, learned by trial and error. We assumed that distinct cognitive processes might be dominant during early learning e.g., visual perception and decision making. Advanced learning, however, might be indicated by increased neuronal activation in integration-and memory-related regions. For assessment of learning progress, visual-and movement-related brain potentials were measured and compared between three learning stages (early, intermediate, and late). The results have revealed significant differences between the learning stages during distinct time intervals. Related to visual stimulus presentation, Low Resolution Electromagnetic Brain Tomography (LORETA) revealed strong neuronal activation in a parieto-prefrontal network in time intervals between 100-400 ms post event and during early learning. In relation to the motor response neuronal activation was significantly increased during intermediate compared to early learning. Prior to the motor response (120-360 ms pre event), neuronal activation was detected in the cingulate motor area and the right dorsal premotor cortex. Subsequent to the motor response (68-430 ms post event) there was an increase in neuronal activation in visuomotor-and memory-related areas including parietal cortex, SMA, premotor, dorsolateral prefrontal, and parahippocampal cortex. The present study has shown specific time elements of a visuomotor-memory-related network, which might support learning progress during visuomotor association learning.

show abstract

“…Affective stimuli elicit distinctive ERP responses as early as 80 ms (Pizzagalli et al, 1999;Pizzagalli et al, 2000;Keil et al, 2001) and as late as 1000 ms (Eimer and Holmes, 2002) post-stimulus. Aversive and socially salient stimuli tend to elicit rapid responses-between 80 and 170 ms post-stimulus (Pizzagalli et al, 1999;Streit et al, 1999;Halgren et al, 2000;Halit et al, 2000;Pizzagalli et al, 2000;Eimer and Holmes, 2002). The simple perception of a face, perhaps the most socially salient of all stimuli, elicits a vertex-positive/occiput-negative ERP component approximately 165-170 ms post-stimulus.…”

Section: Introductionmentioning

confidence: 99%

Facial emotion recognition in schizophrenia:When and why does it go awry?

Turetsky

Kohler

Indersmitten

et al. 2007

Schizophrenia Research

211

170

View full text Add to dashboard Cite

Objective-Schizophrenia patients demonstrate impaired emotional processing that may be due, in part, to impaired facial emotion recognition. This study examined event-related potential (ERP) responses to emotional faces in schizophrenia patients and controls to determine when, in the temporal processing stream, patient abnormalities occur.Method-16 patients and 16 healthy control participants performed a facial emotion recognition task. Very sad, somewhat sad, neutral, somewhat happy, and very happy faces were each presented for 100 ms. Subjects indicated whether each face was "Happy", "Neutral", or "Sad". Evoked potential data were obtained using a 32-channel EEG system.Results-Controls performed better than patients in recognizing facial emotions. In patients, better recognition of happy faces correlated with less severe negative symptoms. Four ERP components corresponding to the P100, N170, N250, and P300 were identified. Group differences were noted for the N170 "face processing" component that underlies the structural encoding of facial features, but not for the subsequent N250 "affect modulation" component. Higher amplitude of the N170 response to sad faces was correlated with less severe delusional symptoms. Although P300 abnormalities were found, the variance of this component was explained by the earlier N170 response. Conclusion-Patientswith schizophrenia demonstrate abnormalities in early visual encoding of facial features that precedes the ERP response typically associated with facial affect recognition. This suggests that affect recognition deficits, at least for happy and sad discrimination, are secondary Correspondence: Bruce I. Turetsky, M.

show abstract

Face-elicited ERPs and affective attitude: brain electric microstate and tomography analyses

Cited by 81 publications

References 50 publications

Neural and Behavioral Evidence for Affective Priming from Unconsciously Perceived Emotional Facial Expressions and the Influence of Trait Anxiety

Neural and Behavioral Evidence for Affective Priming from Unconsciously Perceived Emotional Facial Expressions and the Influence of Trait Anxiety

Neuronal Modifications During Visuomotor Association Learning Assessed by Electric Brain Tomography

Facial emotion recognition in schizophrenia:When and why does it go awry?

Contact Info

Product

Resources

About