scholarly journals The Right Hemisphere Is Responsible for the Greatest Differences in Human Brain Response to High-Arousing Emotional versus Neutral Stimuli: A MEG Study

2021 ◽  
Vol 11 (8) ◽  
pp. 960
Author(s):  
Mina Kheirkhah ◽  
Philipp Baumbach ◽  
Lutz Leistritz ◽  
Otto W. Witte ◽  
Martin Walter ◽  
...  
Keyword(s):  
Human Brain ◽  
Right Hemisphere ◽  
Emotional Stimuli ◽  
Brain Response ◽  
Whole Brain ◽  
Brain Responses ◽  
Cortical Regions ◽  
The Right ◽  
Healthy Participants

Studies investigating human brain response to emotional stimuli—particularly high-arousing versus neutral stimuli—have obtained inconsistent results. The present study was the first to combine magnetoencephalography (MEG) with the bootstrapping method to examine the whole brain and identify the cortical regions involved in this differential response. Seventeen healthy participants (11 females, aged 19 to 33 years; mean age, 26.9 years) were presented with high-arousing emotional (pleasant and unpleasant) and neutral pictures, and their brain responses were measured using MEG. When random resampling bootstrapping was performed for each participant, the greatest differences between high-arousing emotional and neutral stimuli during M300 (270–320 ms) were found to occur in the right temporo-parietal region. This finding was observed in response to both pleasant and unpleasant stimuli. The results, which may be more robust than previous studies because of bootstrapping and examination of the whole brain, reinforce the essential role of the right hemisphere in emotion processing.

scholarly journals A Systematic Review on the Interaction between Emotion and Pseudoneglect

Symmetry ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1531
Author(s):  
Francesca Strappini ◽  
Gaspare Galati ◽  
Anna Pecchinenda
Keyword(s):  
Left Visual Field ◽  
Right Hemisphere ◽  
Emotional State ◽  
Large Body ◽  
Behavioral Effects ◽  
Emotional Stimuli ◽  
Right Hemisphere Hypothesis ◽  
The Right ◽  
Healthy Participants

Background: A large body of research has shown brain asymmetries in spatial attention. Specifically, there is an attention-processing advantage for the left visual field in healthy, right-handed subjects, known as “pseudoneglect.” Several studies have revealed that emotions modulate this basic spatial phenomenon, but the direction of the effect is still unclear. Here we systematically review empirical evidence on the behavioral effects of emotion on pseudoneglect. Methods: We searched through Pubmed, Scopus, PsycINFO, and PsychArticles. Original peer-reviewed articles published until February 2021 were included if they (1) were written in English; (2) were conducted on adults; (3) included at least one task to measure pseudoneglect, and (4) included at least one task with emotional stimuli or employed a measure of emotional state/trait, as they relate to pseudoneglect. Results: Fifteen studies were included, and 784 healthy participants took part in all studies reviewed. Discussion: The results show some evidence of emotion modulation of pseudoneglect, but evidence on the direction of the effect is mixed. We discuss the role of methodological factors that could account for the available findings and the implications for emotion asymmetry hypotheses such as the right-hemisphere hypothesis, the valence-specific hypothesis, as well as neural and arousal frameworks of attention–emotion interactions.

Brain asymmetry, immunity, handedness

Open Medicine ◽  
2012 ◽  
Vol 7 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Zlatislav Stoyanov ◽  
Lyoubka Decheva ◽  
Irina Pashalieva ◽  
Piareta Nikolova
Keyword(s):  
Immune Response ◽  
Human Brain ◽  
Right Hemisphere ◽  
Functional Organization ◽  
Brain Asymmetry ◽  
Internal Environment ◽  
Living Nature ◽  
Left Right Asymmetry ◽  
The Right

AbstractThe principle of symmetry-asymmetry is widely presented in the structural and functional organization of the nonliving and living nature. One of the most complex manifestations of this principle is the left-right asymmetry of the human brain. The present review summarizes previous and contemporary literary data regarding the role of brain asymmetry in neuroimmunomodulation. Some handedness-related peculiarities are outlined additionally. Brain asymmetry is considered to be imprinted in the formation and regulation of the individual’s responses and relationships at an immunological level with the external and internal environment. The assumptions that the hemispheres modulate immune response in an asymmetric manner have been confirmed in experiments on animals. Some authors assume that the right hemisphere plays an indirect role in neuroimmunomodulation, controlling and suppressing the left hemispheric inductive signals.

Lateralization of Language

2019 ◽  
pp. 876-906
Author(s):  
Lise Van der Haegen ◽  
Qing Cai
Keyword(s):  
Human Brain ◽  
Speech Processing ◽  
Right Hemisphere ◽  
Hemispheric Specialization ◽  
Unique Contribution ◽  
Language Impaired ◽  
Language Functions ◽  
Hemisphere Dominance ◽  
The Right

It is intriguing that the two brain halves of the human brain look so similar, but are in fact quite different at the anatomical level, and even more so at the functional level. In particular, the highly frequent co-occurrence of right-handedness and left hemisphere dominance of language has led to an abundance of laterality research. This chapter discusses the most important recent finding on laterality (i.e., left or right hemisphere) and degree of hemispheric specialization for speech production, auditory speech processing, and reading. Following a descriptive overview of these three core sub-processes of language, the chapter summarizes possible influences on the lateralization of each, including anatomical, evolutionary, genetic, developmental, and experiential factors, as well as handedness and impairment. It will become clear that language is a heterogeneous cognitive function driven by a variety of underpinning origins. Next, the often-underestimated role of the right hemisphere for language is discussed with respect to prosody and metaphor comprehension, as well as individual differences in the lateralization of healthy and language-impaired brains. Finally, recent insights into the relationship between lateralized language and non-language functions are discussed, highlighting the unique contribution of lateralization research to the growing knowledge of general human brain mechanisms.

The role of the right hemisphere in processing negative sentences in context

1986 ◽  
Vol 24 (2) ◽  
pp. 289-292 ◽  
Author(s):  
Valentina D'Urso ◽  
Gianfranco Denes ◽  
Stefano Testa ◽  
Carlo Semenza
Keyword(s):  
Right Hemisphere ◽  
The Right

Metaphors and verbal creativity: The role of the right hemisphere

2012 ◽  
Vol 17 (5) ◽  
pp. 602-614 ◽  
Author(s):  
Rinat Gold ◽  
Miriam Faust ◽  
Elisheva Ben-Artzi
Keyword(s):  
Right Hemisphere ◽  
Verbal Creativity ◽  
The Right

scholarly journals Studies on semantic priming effects in right hemisphere stroke: A systematic review

2013 ◽  
Vol 7 (2) ◽  
pp. 155-163
Author(s):  
Juliana de Lima Müller ◽  
Jerusa Fumagalli de Salles
Keyword(s):  
Systematic Review ◽  
Semantic Priming ◽  
Cerebral Hemisphere ◽  
Semantic Processing ◽  
Right Hemisphere ◽  
Priming Effects ◽  
Right Cerebral Hemisphere ◽  
The Right ◽  
Right Hemisphere Stroke

ABSTRACT The role of the right cerebral hemisphere (RH) associated with semantic priming effects (SPEs) must be better understood, since the consequences of RH damage on SPE are not yet well established. Objective: The aim of this article was to investigate studies analyzing SPEs in patients affected by stroke in the RH through a systematic review, verifying whether there are deficits in SPEs, and whether performance varies depending on the type of semantic processing evaluated or stimulus in the task. Methods: A search was conducted on the LILACS, PUBMED and PSYCINFO databases. Results: Out of the initial 27 studies identified, 11 remained in the review. Difficulties in SPEs were shown in five studies. Performance does not seem to vary depending on the type of processing, but on the type of stimulus used. Conclusion: This ability should be evaluated in individuals that have suffered a stroke in the RH in order to provide treatments that will contribute to their recovery.

The dysfunction of affective picture processing in pituitary patients: an ERPs study

2020 ◽  
Author(s):  
Chenglong Cao ◽  
Jian Song ◽  
Binbin Liu ◽  
Jianren Yue ◽  
Yuzhao Lu ◽  
...  
Keyword(s):  
Pituitary Adenoma ◽  
Patient Group ◽  
Electric Potential ◽  
Emotional Processing ◽  
Right Hemisphere ◽  
Event Related Potentials ◽  
Emotional Stimuli ◽  
Affective Stimuli ◽  
Related Potentials ◽  
The Right

Abstract Background: Cognitive impairments have been reported in patients with pituitary adenoma; however, there is a lack of knowledge of investigating the emotional stimuli processing in pituitary patients. Thus, we aimed to investigate whether there is emotional processing dysfunction in pituitary patients by recording and analyzing the late positive potential (LPP) elicited by affective stimuli.Methods: Evaluation of emotional stimuli processing by LPP Event related potentials (ERPs) was carried out through central- parietal electrode sites (C3, Cz, C4, P3, Pz, P4) on the head of the patients and healthy controls (HCs).Results: In the negative stimuli, the amplitude of LPP was 2.435 ± 0.419μV for HCs and 0.656 ± 0.427μV for patient group respectively ( p = 0.005). In the positive stimuli, the elicited electric potential 1.450 ± 0.316μV for HCs and 0.495 ± 0.322μV for patient group respectively ( p = 0.040). Moreover, the most obvious difference of LPP amplitude between the two groups existed in the right parietal region. On the right hemisphere (at the P4 site), the elicited electric potential was 1.993 ± 0.299μV for HCs and 0.269 ± 0.305μV for patient group respectively( p = 0.001).Conclusion: There are functional dysfunction of emotional stimuli processing in pituitary adenoma patients. Our research provides the electrophysiological evidence for the presence of cognitive dysfunction which need to be intervened in the pituitary adenoma patients.

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