EEG alpha and cortical inhibition in affective attention

Uusberg, Andero; Uibo, Helen; Kreegipuu, Kairi; Allik, Jüri

doi:10.1016/j.ijpsycho.2013.04.020

Cited by 97 publications

(101 citation statements)

References 56 publications

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“…signalling passive inactivity), but in line with alternative perspectives considering α a watchful rhythm with active inhibitory functions (e.g. Knyazev, 2007;Uusberg et al, 2013).…”

Section: Discussionsupporting

confidence: 52%

“…The fact that both α and β band powers were associated in the same way with attentional control individual differences seems to be at odds with traditional views of α band interpretations and in accordance with alternative perspectives (Knyazev, 2007), which are largely ignored in affective research (Uusberg et al, 2013) and consider alpha a watchful or preparedness rhythm with important inhibitory functions. In a subsequent study conducted by the same research group , only right-sided parietal activity in the β2 (13-30 Hz) frequency range was a significant predictor of decreased AC.…”

Section: Introductionmentioning

confidence: 77%

See 1 more Smart Citation

Spontaneous EEG activity and spontaneous emotion regulation

Tortella-Feliu¹,

Morillas-Romero²,

Balle³

et al. 2014

International Journal of Psychophysiology

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“…signalling passive inactivity), but in line with alternative perspectives considering α a watchful rhythm with active inhibitory functions (e.g. Knyazev, 2007;Uusberg et al, 2013).…”

Section: Discussionsupporting

confidence: 52%

Section: Introductionmentioning

confidence: 77%

Spontaneous EEG activity and spontaneous emotion regulation

Tortella-Feliu¹,

Morillas-Romero²,

Balle³

et al. 2014

International Journal of Psychophysiology

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“…We argue that the alpha ERD modulation exerted by death-related images may be explained either by i) higher attentional load allocated as result of a motivational modulation exerted by the more meaningful content of the death-related pictures or by ii) an active attempt to disengage attention from the affective content of the image. Our findings are compatible with other studies investigating the effect of affective pictures observation on alpha band activity using EEG (Uusberg et al, 2013). In the same vein, Onoda et al (2007) investigated event-related power changes of alpha activity during observation of affective images taken from the IAPS database using magnetoencephalography.…”

Section: Discussionsupporting

confidence: 92%

“…The authors found augmented alpha ERD during the period anticipating the negative but not the positive images, an effect that was maximal at the occipital region. One of the most wellestablished finding in the literature on affective picture processing is that emotionally arousing (pleasant and unpleasant) pictures elicit larger magnitude of electrical (Cuthbert et al, 2000) and hemodynamic brain activity (Lane et al, 1999) It is worth noting that, as already suggested by other authors, LPP and alpha ERD may rely on different brain mechanisms and index different processes (Ferrari et al, 2015;Uusberg et al, 2013). The effect we observed in the alpha band was comprised in an earlier latency (i.e.…”

Section: Discussionmentioning

confidence: 89%

Visual reminders of death enhance nociceptive-related cortical responses and event-related alpha desynchronisation

Valentini

Nicolardi

Aglioti

2017

Biological Psychology

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2 Highlights We tested whether images conveying death-related vs. threat-related content had a specific effect on pain perception and cortical activity measured by EEG.  We found increased amplitude of nociceptive P2 potential and oscillatory theta activity associated with death-related images, but no change in pain ratings.  We found increased oscillatory alpha desynchronisation associated with deathrelated images but no significant difference in visual evoked potentials amplitude. AbstractPrevious research suggests that prompting individuals to think on their own mortality affects their perception of painful somatic stimuli and related brain activity. Grounded on the assumption that reminders of mortality may recruit threat-defence mechanisms similar to the ones activated by painful nociceptive stimuli, we hypothesize that the effects exerted by linguistic reminders of death on pain perception and brain activity would be elicited by passive observation of death-related pictures vs. more generic threat-related pictures.Results showed an increase of the laser evoked P2 amplitude and oscillatory theta activity when participants observed death-related images. However, no change in pain ratings was found. Moreover, observation of death-related content was linked to increased oscillatory alpha desynchronisation but not to variations of visual evoked potentials amplitude. Our findings indicate that pairing potentially noxious stimuli with death-related images exerts a preferential modulation of nociceptive and visual cortical representations.

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“…Aftanas et al (2002, 2004), for example, found an increase in posterior and anterior alpha with affective stimuli, whereas De Cesarei and Codispoti (2011) found a decrease in posterior sites. Uusberg et al (2013) found enhanced high alpha in central and parietal areas in late event-related potentials with emotional stimuli, most prominently with aversive stimuli. Müller et al (1999) identified the temporal areas as being associated with positive (right hemisphere) and negative (left hemisphere) emotions.…”

Section: Introductionmentioning

confidence: 89%

Neurophysiological correlates of various mental perspectives

Hinterberger¹,

Zlabinger²,

Blaser³

2014

Front. Hum. Neurosci.

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A common view of consciousness is that our mind presents emotions, experiences, and images in an internal mental (re-)presentation space which in a state of wakefulness is triggered by the world outside. Consciousness can be defined as the observation of this inner mental space. We propose a new model, in which the state of the conscious observer is defined by the observer’s mental position and focus of attention. The mental position of the observer can either be within the mental self (intrapersonal space), in the mental outer world (extrapersonal space) or in an empathic connection, i.e., within the intrapersonal space of another person (perspective taking). The focus of attention can be directed toward the self or toward the outside world. This mental space model can help us to understand the patterns of relationships and interactions with other persons as they occur in social life. To investigate the neurophysiological correlates and discriminability of the different mental states, we conducted an EEG experiment measuring the brain activity of 16 subjects via 64 electrodes while they engaged in different mental positions (intrapersonal, extrapersonal, perspective taking) with different attentional foci (self, object). Compared to external mental locations, internal ones showed significantly increased alpha2 power, especially when the observer was focusing on an object. Alpha2 and beta2 were increased in the empathic condition compared to the extrapersonal perspective. Delta power was significantly higher when the attentional focus was directed toward an object in comparison to the participant’s own self. This exploratory study demonstrates highly significant differences between various mental locations and foci, suggesting that the proposed categories of mental location and intra- and interpersonal attentional foci are not only helpful theoretical concepts but are also physiologically relevant and therefore may relate to basic brain processing mechanisms.

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EEG alpha and cortical inhibition in affective attention

Cited by 97 publications

References 56 publications

Spontaneous EEG activity and spontaneous emotion regulation

Spontaneous EEG activity and spontaneous emotion regulation

Visual reminders of death enhance nociceptive-related cortical responses and event-related alpha desynchronisation

Neurophysiological correlates of various mental perspectives

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