scholarly journals Imbalance between Emotionally Negative and Positive Life Events Retrieval and the Associated Asymmetry of Brain Activity

2019 ◽  
Vol 10 (1) ◽  
pp. 18
Author(s):  
Olga Razumnikova ◽  
Ekaterina Khoroshavtseva
Keyword(s):  
Life Events ◽  
Positive Emotions ◽  
Brain Activity ◽  
Negative Emotions ◽  
Temporal Cortex ◽  
Emotional Memory ◽  
Self Assessment ◽  
Posterior Cortex ◽  
Synchronization Effect ◽  
The Right

Sustained focusing on a negative assessment of life events can create negative background and changes in the emotional feedback to new information. In this regard, it is important to assess the balance between self-assessment of emotional memories and their reflection in brain activity. The study was aimed at exploring the brain activity using electroencephalographic (EEG) analysis in six frequency ranges from delta to beta2 during the retrieval of positive or negative emotional memory compared with the resting state. According to ANOVA results, the most informative for differentiation of emotions were the alpha2 and beta2 rhythms with greater synchronization effect for positive than for negative emotions. The memory retrieval, regardless of the valence of emotions, was accompanied by alpha1 desynchronization at the posterior cortex. Self-assessment of the memory intensity was not significantly different due to emotion valences. However, the scores of positive emotions were related positively with beta2 oscillations at the left anterior temporal site, whereas for negative emotions, at the right one. Thus, the emotional autobiographical memory is reflected by activation processes in the visual cortex and areas associated with multimodal information processing, whereas differentiation of the valence of emotions is presented by the high-frequency oscillations at the temporal cortex areas.

Purchase decision: does too much choice leave us unhappy?

2017 ◽  
Vol 51 (7/8) ◽  
pp. 1248-1265 ◽  
Author(s):  
Yun-Chia Tang ◽  
Yi-Ching Hsieh ◽  
Hung-Chang Chiu
Keyword(s):  
Positive Emotions ◽  
Negative Emotions ◽  
Real Life ◽  
Product Variety ◽  
Purchase Intentions ◽  
Self Assessment ◽  
Content Type ◽  
Emotional Factors ◽  
Willingness To Purchase ◽  
Virtual Store

Purpose The purpose of this study is to determine how and when choice variety influences consumers’ willingness to purchase, according to a personal emotion perspective. The choice paradox indicates that although having many choices can be beneficial, it can also cause customer decision paralysis and unhappiness. This article proposes that the desire and motivation to process information vary from person to person, and emotional factors are relevant. Design/methodology/approach With a 2 × 2 experimental design, this study examines the influence of the interaction of choice variety with need for cognition (NFC) on positive and negative emotions, and then tests the mediating effects on purchase intentions. The sample includes 214 college students, assigned randomly to self-assessment questionnaires. Findings Both high NFC respondents in the high variety condition and low NFC respondents in the low variety condition exhibit more positive emotions than low NFC respondents in the high variety condition but not more than high NFC respondents in the low variety condition. Positive (negative) emotions increase (decrease) consumers’ purchase intentions. Research limitations/implications The experiment was conducted in a virtual store, which may not match real-life store environments or reflect participants’ actual purchase behaviours, so additional research should consider the influence of involvement further. Practical implications The results offer suggestions for developing more effective communication with emotions, increasing involvement to maintain consumers’ positive emotions and relieve their confusion, and managing product variety. Originality/value This article meets the identified need to study how choice variety influences consumers’ willingness to purchase from a personal emotion perspective.

scholarly journals The Menstrual Cycle Alters Resting-State Cortical Activity: A Magnetoencephalography Study

2021 ◽  
Vol 15 ◽  
Author(s):  
Rika Haraguchi ◽  
Hideyuki Hoshi ◽  
Sayuri Ichikawa ◽  
Mayuko Hanyu ◽  
Kohei Nakamura ◽  
...  
Keyword(s):  
Menstrual Cycle ◽  
Resting State ◽  
Functional Neuroimaging ◽  
Brain Activity ◽  
Temporal Cortex ◽  
Neural Oscillations ◽  
Median Frequency ◽  
Accurate Interpretation ◽  
High Gamma ◽  
The Right

Resting-state neural oscillations are used as biomarkers for functional diseases such as dementia, epilepsy, and stroke. However, accurate interpretation of clinical outcomes requires the identification and minimisation of potential confounding factors. While several studies have indicated that the menstrual cycle also alters brain activity, most of these studies were based on visual inspection rather than objective quantitative measures. In the present study, we aimed to clarify the effect of the menstrual cycle on spontaneous neural oscillations based on quantitative magnetoencephalography (MEG) parameters. Resting-state MEG activity was recorded from 25 healthy women with normal menstrual cycles. For each woman, resting-state brain activity was acquired twice using MEG: once during their menstrual period (MP) and once outside of this period (OP). Our results indicated that the median frequency and peak alpha frequency of the power spectrum were low, whereas Shannon spectral entropy was high, during the MP. Theta intensity within the right temporal cortex and right limbic system was significantly lower during the MP than during the OP. High gamma intensity in the left parietal cortex was also significantly lower during the MP than during the OP. Similar differences were also observed in the parietal and occipital regions between the proliferative (the late part of the follicular phase) and secretory phases (luteal phase). Our findings suggest that the menstrual cycle should be considered to ensure accurate interpretation of functional neuroimaging in clinical practice.

scholarly journals Association between Emotional Intelligence and Hemispheric Activity Asymmetry

2018 ◽  
Author(s):  
O Razumnikova ◽  
E Khoroshavtseva ◽  
A Yashanina
Keyword(s):  
Emotional Intelligence ◽  
Emotional Reactivity ◽  
Negative Emotion ◽  
Low Frequency ◽  
Hemispheric Dominance ◽  
Emotional States ◽  
Self Assessment ◽  
Posterior Cortex ◽  
The Right ◽  
Delta Oscillations

The relations between the asymmetry of hemispheric activity using the EEG rhythms in resting and both trait emotional intelligence (EI-IPIP) and self-assessment of emotional reactivity on IAPS stimuli were studied in university students. The obtained EEG patterns of power asymmetry in both low-frequency and high-frequency indicate different variants of the hemispheric dominance in the anterior and posterior regions of the brain, depending not only on the valence of induced emotions, but also on selfassessment of perception or expression of emotional states. Total EI was associated with relatively greater left frontal activation on low frequency delta oscillations and on higher beta2 oscillations in posterior cortex. Using EEG mapping positive relations were found between the right hemispheric delta rhythm and emotional reactivity to negative emotive stimuli and between the left hemispheric delta and positive affect. Self-rating of positive to negative emotion during both EI and IAPS stimuli-induced affect testing was more pronounced in the relationships to asymmetry of hemispheric activity than separate traits EI. Keywords: Emotional intelligence traits, self-assessment of emotional reactivity, EEG, hemispheric asymmetry, frequency bands

Infants of mothers with depressive symptoms: Electroencephalographic and behavioral findings related to attachment status

1992 ◽  
Vol 4 (1) ◽  
pp. 67-80 ◽  
Author(s):  
Geraldine Dawson ◽  
Laura Grofer Klinger ◽  
Heracles Panagiotides ◽  
Susan Spieker ◽  
Karin Frey
Keyword(s):  
Depressive Symptoms ◽  
Positive Emotions ◽  
Maternal Separation ◽  
Brain Activity ◽  
Well Being ◽  
Frontal Region ◽  
Strange Situation ◽  
Frontal Brain ◽  
Frontal Activity ◽  
The Right

AbstractEvidence suggests that the left frontal region is specialized for the expression of positive emotions, such as joy, whereas the right frontal region is specialized for certain negative emotions, such as distress. We previously reported that infants of mothers with depressive symptoms exhibited atypical patterns of frontal electroencephalographic (EEG) activity. We now extend these findings by examining the combined influence of maternal depression and attachment security on the infant's behavior and brain activity. Participants were 26 infants, 11–17 months of age, and their mothers. Twelve mothers reported elevated levels of depressive symptoms. Attachment behavior was observed in the traditional Strange Situation. While left and right, frontal and parietal EEG was recorded, infants were exposed to a baseline and three emotion-eliciting conditions (play with mother, stranger approach, maternal separation). During baseline and the condition designed to elicit positive emotion (play with mother), securely attached infants of symptomatic mothers exhibited reduced left frontal brain activity, compared to securely attached infants of nonsymptomatic mothers. During maternal separation, the most robust finding was that infants of symptomatic mothers, regardless of their attachment classification, exhibited reduced right frontal activity and lower levels of behavioral distress. The results suggest that both the mother's emotional well-being and her attachment relationship with her infant can influence infant frontal brain activity and affective behavior.

scholarly journals Self-Positivity or Self-Negativity as a Function of the Medial Prefrontal Cortex

2021 ◽  
Vol 11 (2) ◽  
pp. 264
Author(s):  
Alla Yankouskaya ◽  
Jie Sui
Keyword(s):  
Prefrontal Cortex ◽  
Medial Prefrontal Cortex ◽  
Positive Emotions ◽  
Negative Emotion ◽  
Brain Activity ◽  
Negative Emotions ◽  
Univariate Analysis ◽  
Region Of Interest ◽  
Well Being ◽  
Neural Mechanisms

Self and emotions are key motivational factors of a person strivings for health and well-being. Understanding neural mechanisms supporting the relationship between these factors bear far-reaching implications for mental health disorders. Recent work indicates a substantial overlap between self-relevant and emotion information processing and has proposed the medial prefrontal cortex (MPFC) as one shared neural signature. However, the precise cognitive and neural mechanisms represented by the MPFC in investigations of self- and emotion-related processing are largely unknown. Here we examined whether the neural underpinnings of self-related processing in the MPFC link to positive or negative emotions. We collected fMRI data to test the distinct and shared neural circuits of self- and emotion-related processing while participants performed personal (self, friend, or stranger) and emotion (happy, sad, or neutral) associative matching tasks. By exploiting tight control over the factors that determine the effects of self-relevance and emotions (positive: Happy vs. neutral; negative: Sad vs. neutral), our univariate analysis revealed that the ventral part of the MPFC (vmPFC), which has established involvement in self-prioritisation effects, was not recruited in the negative emotion prioritisation effect. In contrast, there were no differences in brain activity between the effects of positive emotion- and self-prioritisation. These results were replicated by both region of interest (ROI)-based analysis in the vmPFC and the seed- to voxel functional connectivity analysis between the MPFC and the rest of the brain. The results suggest that the prioritisation effects for self and positive emotions are tightly linked together, and the MPFC plays a large role in discriminating between positive and negative emotions in relation to self-relevance.

scholarly journals BRAIN ACTIVITY OF INDUSTRIAL DESIGNERS IN CONSTRAINED AND OPEN DESIGN: THE EFFECT OF GENDER ON FREQUENCY BANDS

2021 ◽  
Vol 1 ◽  
pp. 571-580
Author(s):  
Sonia Liliana da Silva Vieira ◽  
Mathias Benedek ◽  
John S. Gero ◽  
Gaetano Cascini ◽  
Shumin Li
Keyword(s):  
Prefrontal Cortex ◽  
Problem Solving ◽  
Design Research ◽  
Brain Activity ◽  
Temporal Cortex ◽  
Frequency Bands ◽  
Open Design ◽  
Main Effect ◽  
Industrial Designers ◽  
The Right

AbstractIn this paper, we present results from an experiment using EEG to measure brain activity and explore EEG frequency power associated with gender differences of professional industrial designers while performing two prototypical stages of constrained and open design tasks, problem-solving and design sketching. Results indicate no main effect of gender. However, among other main effects, a consistent main effect of hemisphere for the six frequency bands under analysis was found. In the problem-solving stage, male designers show higher alpha and beta bands in channels of the prefrontal cortices and female designers in the right occipitotemporal cortex and secondary visual cortices. In the design sketching stage, male designers show higher alpha and beta bands in the right prefrontal cortex, and female designers in the right temporal cortex and left prefrontal cortex, where higher theta is also found. Prioritising different cognitive functions seem to play a role in each gender's approach to constrained and open design tasks. Results can be useful to design professionals, students and design educators, and for the development of methodological approaches in design research and education.

scholarly journals Perceived facial happiness during conversation correlates with insular and hypothalamus activity for humans, not robots. An investigation of the somatic marker hypothesis applied to social interactions.

2021 ◽  
Author(s):  
Thierry Chaminade ◽  
Nicolas Spatola
Keyword(s):  
Social Interactions ◽  
Positive Emotions ◽  
Right Hemisphere ◽  
Brain Activity ◽  
Brain Regions ◽  
Autonomous Nervous System ◽  
Somatic Marker ◽  
Somatic Marker Hypothesis ◽  
The Right ◽  
Marker Hypothesis

The somatic marker hypothesis posits that perceiving emotions entails reenacting markers of self emotions, in particular in the autonomous nervous system. Well studied in decision-making tasks, it has not been tested in a social cognitive neuroscience framework, and in particular for the automatic processing of positive emotions during natural interactions. Here, we address this question using a unique corpus of brain activity recorded during unconstrained conversations between participants and a human or a humanoid robot. fMRI recordings are used to test whether activity in the most important brain regions in relation to the autonomic system, the amygdala, hypothalamus and insula, is affected by the level of happiness expressed by the human and robot agents. Results indicate that for the hypothalamus and the insula, in particular the anterior agranular region strongly involved in processing social emotions, activity in the right hemisphere increases with the level of happiness expressed by the human, but not the robot. Results indicate that perceiving positive emotions in social interactions induces the local brain responses predicted by the somatic marker hypothesis, but only when the interacting agent is a real human.

scholarly journals A face-selective ventral occipito-temporal map of the human brain with intracerebral potentials

2016 ◽  
Vol 113 (28) ◽  
pp. E4088-E4097 ◽  
Author(s):  
Jacques Jonas ◽  
Corentin Jacques ◽  
Joan Liu-Shuang ◽  
Hélène Brissart ◽  
Sophie Colnat-Coulbois ◽  
...  
Keyword(s):  
Signal To Noise Ratio ◽  
Brain Activity ◽  
Temporal Cortex ◽  
Hemispheric Dominance ◽  
High Signal ◽  
Supporting Evidence ◽  
Fixed Rate ◽  
Susceptibility Artifacts ◽  
Regional Specialization ◽  
The Right

Human neuroimaging studies have identified a network of distinct face-selective regions in the ventral occipito-temporal cortex (VOTC), with a right hemispheric dominance. To date, there is no evidence for this hemispheric and regional specialization with direct measures of brain activity. To address this gap in knowledge, we recorded local neurophysiological activity from 1,678 contact electrodes implanted in the VOTC of a large group of epileptic patients (n = 28). They were presented with natural images of objects at a rapid fixed rate (six images per second: 6 Hz), with faces interleaved as every fifth stimulus (i.e., 1.2 Hz). High signal-to-noise ratio face-selective responses were objectively (i.e., exactly at the face stimulation frequency) identified and quantified throughout the whole VOTC. Face-selective responses were widely distributed across the whole VOTC, but also spatially clustered in specific regions. Among these regions, the lateral section of the right middle fusiform gyrus showed the largest face-selective response by far, offering, to our knowledge, the first supporting evidence of two decades of neuroimaging observations with direct neural measures. In addition, three distinct regions with a high proportion of face-selective responses were disclosed in the right ventral anterior temporal lobe, a region that is undersampled in neuroimaging because of magnetic susceptibility artifacts. A high proportion of contacts responding only to faces (i.e., “face-exclusive” responses) were found in these regions, suggesting that they contain populations of neurons involved in dedicated face-processing functions. Overall, these observations provide a comprehensive mapping of visual category selectivity in the whole human VOTC with direct neural measures.

Emotional Reactivity to Visual Content as Revealed by ERP Component Clustering

2015 ◽  
Vol 29 (4) ◽  
pp. 135-146 ◽  
Author(s):  
Miroslaw Wyczesany ◽  
Szczepan J. Grzybowski ◽  
Jan Kaiser
Keyword(s):  
Emotional Reactivity ◽  
Brain Activity ◽  
Affective State ◽  
Occipital Lobe ◽  
Stimulus Onset ◽  
Emotional States ◽  
Neural Basis ◽  
Temporoparietal Junction ◽  
The Right ◽  
The Impact

Abstract. In the study, the neural basis of emotional reactivity was investigated. Reactivity was operationalized as the impact of emotional pictures on the self-reported ongoing affective state. It was used to divide the subjects into high- and low-responders groups. Independent sources of brain activity were identified, localized with the DIPFIT method, and clustered across subjects to analyse the visual evoked potentials to affective pictures. Four of the identified clusters revealed effects of reactivity. The earliest two started about 120 ms from the stimulus onset and were located in the occipital lobe and the right temporoparietal junction. Another two with a latency of 200 ms were found in the orbitofrontal and the right dorsolateral cortices. Additionally, differences in pre-stimulus alpha level over the visual cortex were observed between the groups. The attentional modulation of perceptual processes is proposed as an early source of emotional reactivity, which forms an automatic mechanism of affective control. The role of top-down processes in affective appraisal and, finally, the experience of ongoing emotional states is also discussed.

Don’t Put Me in This Group

2019 ◽  
Vol 50 (2) ◽  
pp. 80-93
Author(s):  
Jort de Vreeze ◽  
Christina Matschke
Keyword(s):  
Positive Emotions ◽  
Negative Emotions ◽  
Negative Information ◽  
The Self ◽  
The Other ◽  
Other Hand ◽  
Group Memberships

Abstract. Not all group memberships are self-chosen. The current research examines whether assignments to non-preferred groups influence our relationship with the group and our preference for information about the ingroup. It was expected and found that, when people are assigned to non-preferred groups, they perceive the group as different to the self, experience negative emotions about the assignment and in turn disidentify with the group. On the other hand, when people are assigned to preferred groups, they perceive the group as similar to the self, experience positive emotions about the assignment and in turn identify with the group. Finally, disidentification increases a preference for negative information about the ingroup.

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