Steady-State Visually Evoked Potential Topography during Processing of Emotional Valence in Healthy Subjects

Kemp, Andrew H.; Gray, Marcus A.; Eide, P.; Silberstein, Richard B.; Nathan, Pradeep J.

doi:10.1006/nimg.2002.1298

Cited by 80 publications

(56 citation statements)

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“…The prefrontal lobes play a central role in the integration of responses from these areas [26,49]. Since dysfunctions of frontal networks have been repeatedly demonstrated in ALS [2,20,27,38,39], it might be speculated that emotional changes in these patients are associated with frontal dysfunction.…”

Section: Discussionmentioning

confidence: 99%

Emotional responding in amyotrophic lateral sclerosis

et al. 2005

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Amyotrophic lateral sclerosis (ALS) is a fatal disease, leaving the patient in a partially or completely deafferented state. In an explorative study, we investigated responses to visual socio-emotional stimuli in ALS patients. Pictures from the International Affective Picture System (IAPS) were verbally judged by 12 moderately affected ALS patients with a spinal onset and a slow progression and 18 age-matched controls, and data were compared with psychophysiological responses. Verbal emotional judgments of patients were more positive than ratings of controls. Regarding arousal, patients neutralized extreme pictures, in that they rated calm pictures as more exciting than controls and exciting pictures as more calm. These changes of emotional processing were unrelated to depression or frontal lobe dysfunction. There were no major differences between patients and controls concerning physiological responses to emotional stimuli. We conclude that emotional responses of ALS patients tend to be altered towards positive valence and towards a more balanced arousal state in early stages of the disease. These findings contradict assumptions of a generally negative impact of the disease on the emotional disposition and may indicate compensatory cognitive or neuroplastic changes.

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Section: Discussionmentioning

confidence: 99%

Emotional responding in amyotrophic lateral sclerosis

et al. 2005

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“…This would hold especially in cases in which the emotional content of repeatedly presented stimuli is constant and reentrant modulation can be in effect over a longer period of time, as is the case in ssVEP paradigms. Using IAPS pictures together with ssVEPs elicited by 13-Hz peripheral flicker, Kemp and collaborators (Kemp, Gray, Eide, Silberstein, & Nathan, 2002) found transient reduction of latency at frontal sites when low-arousal pleasant and unpleasant IAPS pictures were viewed, as compared with neutral pictures. Amplitude of ssVEP background flicker was reduced during perception of unpleasant stimuli, which might be interpreted as desynchronization or activation in frontal networks.…”

Section: Discussionmentioning

confidence: 99%

Early modulation of visual perception by emotional arousal: Evidence from steady-state visual evoked brain potentials

Keil

Gruber

Müller

et al. 2003

Cognitive, Affective, & Behavioral Neuroscience

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“…In summary, SST is an established methodology being used in numerous studies of both normal brain function, such as visual attention (Silberstein et al, 1990); working memory (Ellis, Silberstein, and Nathan, 2006;Silberstein, Nunez, Pipingas, Harris, and Danieli, 2001); visual imagery (Silberstein, Danieli, and Nunez, 2003); and decision making (Silberstein, Ciorciari, and Pipingas, 1995); and changes associated with emotional processes (Gray, Kemp, Silberstein, and Nathan, 2003;Kemp, Gray, Eide, Silberstein, and Nathan, 2002;Kemp, Gray, Silberstein, Armstrong, and Nathan, 2004). SST also has been used to study disturbed brain function such as attention deficit hyperactivity disorder and schizophrenia (Line, Silberstein, Wright, and Copolov, 1998;Silberstein et al, 1990).…”

Section: Neuroscience Methodologymentioning

confidence: 99%