scholarly journals Emotion-Attention Interaction in the Right Hemisphere

2021 ◽  
Vol 11 (8) ◽  
pp. 1006
Author(s):  
Kaisa M. Hartikainen
Keyword(s):  
Right Hemisphere ◽  
Resource Competition ◽  
Attention Capture ◽  
Attentional Resource ◽  
Hemispheric Dominance ◽  
Special Role ◽  
Emotional Stimuli ◽  
Brain Physiology ◽  
Brain Functions ◽  
The Right

Hemispheric asymmetries in affective and cognitive functions have been extensively studied. While both cerebral hemispheres contribute to most affective and cognitive processes, neuroscientific literature and neuropsychological evidence support an overall right hemispheric dominance for emotion, attention and arousal. Emotional stimuli, especially those with survival value such as threat, tend to be prioritized in attentional resource competition. Arousing unpleasant emotional stimuli have prioritized access, especially to right-lateralized attention networks. Interference of task performance may be observed when limited resources are exhausted by task- and emotion-related processing. Tasks that rely on right hemisphere-dependent processing, like attending to the left visual hemifield or global-level visual features, are especially vulnerable to interference due to attention capture by unpleasant emotional stimuli. The aim of this review is to present literature regarding the special role of the right hemisphere in affective and attentional brain processes and their interaction. Furthermore, clinical and technological implications of this interaction will be presented. Initially, the effects of focal right hemisphere lesion or atrophy on emotional functions will be introduced. Neurological right hemisphere syndromes including aprosodia, anosognosia and neglect, which further point to the predominance of the intact right hemisphere in emotion, attention and arousal will be presented. Then there will be a brief review of electrophysiological evidence, as well as evidence from patients with neglect that support attention capture by emotional stimuli in the right hemisphere. Subsequently, experimental work on the interaction of emotion, attention and cognition in the right hemispheres of healthy subjects will be presented. Finally, clinical implications for better understanding and assessment of alterations in emotion–attention interaction due to brain disorder or treatment, such as neuromodulation, that impact affective brain functions will be discussed. It will be suggested that measuring right hemispheric emotion–attention interactions may provide basis for novel biomarkers of brain health. Such biomarkers allow for improved diagnostics in brain damage and disorders and optimized treatments. To conclude, future technological applications will be outlined regarding brain physiology-based measures that reflect engagement of the right hemisphere in affective and attentional processes.

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.

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.

scholarly journals Right-hemispheric dominance for visual remapping in humans

2011 ◽  
Vol 366 (1564) ◽  
pp. 572-585 ◽  
Author(s):  
L. Pisella ◽  
N. Alahyane ◽  
A. Blangero ◽  
F. Thery ◽  
S. Blanc ◽  
...  
Keyword(s):  
Posterior Parietal Cortex ◽  
Right Hemisphere ◽  
Target Location ◽  
Original Data ◽  
Hemispheric Dominance ◽  
Cortical Lesion ◽  
Constructional Apraxia ◽  
Posterior Parietal ◽  
The Right ◽  
Transfer Of Information

We review evidence showing a right-hemispheric dominance for visuo-spatial processing and representation in humans. Accordingly, visual disorganization symptoms (intuitively related to remapping impairments) are observed in both neglect and constructional apraxia. More specifically, we review findings from the intervening saccade paradigm in humans—and present additional original data—which suggest a specific role of the asymmetrical network at the temporo-parietal junction (TPJ) in the right hemisphere in visual remapping: following damage to the right dorsal posterior parietal cortex (PPC) as well as part of the corpus callosum connecting the PPC to the frontal lobes, patient OK in a double-step saccadic task exhibited an impairment when the second saccade had to be directed rightward . This singular and lateralized deficit cannot result solely from the patient's cortical lesion and, therefore, we propose that it is due to his callosal lesion that may specifically interrupt the interhemispheric transfer of information necessary to execute accurate rightward saccades towards a remapped target location. This suggests a specialized right-hemispheric network for visuo-spatial remapping that subsequently transfers target location information to downstream planning regions, which are symmetrically organized.

scholarly journals Atypical Hemispheric Dominance for Attention: Functional MRI Topography

2005 ◽  
Vol 25 (9) ◽  
pp. 1197-1208 ◽  
Author(s):  
Agnes Flöel ◽  
Andreas Jansen ◽  
Michael Deppe ◽  
Martin Kanowski ◽  
Carsten Konrad ◽  
...  
Keyword(s):  
Spatial Attention ◽  
Right Hemisphere ◽  
Regional Distribution ◽  
Visuospatial Attention ◽  
Hemispheric Dominance ◽  
Neural Activation ◽  
Brain Organization ◽  
Attention Task ◽  
Control Subjects ◽  
The Right

The right hemisphere is predominantly involved in tasks associated with spatial attention. However, left hemispheric dominance for spatial attention can be found in healthy individuals, and both spatial attention and language can be lateralized to the same hemisphere. Little is known about the underlying regional distribution of neural activation in these ‘atypical’ individuals. Previously a large number of healthy subjects were screened for hemispheric dominance of visuospatial attention and language, using functional Doppler ultrasonography. From this group, subjects were chosen who were ‘atypical’ for hemispheric dominance of visuospatial attention and language, and their pattern of brain activation was studied with functional magnetic resonance imaging during a task probing spatial attention. Right-handed subjects with the ‘typical’ pattern of brain organization served as control subjects. It was found that subjects with an inverted lateralization of language and spatial attention (language right, attention left) recruited left-hemispheric areas in the attention task, homotopic to those recruited by control subjects in the right hemisphere. Subjects with lateralization of both language and attention to the right hemisphere activated an attentional network in the right hemisphere that was comparable to control subjects. The present findings suggest that not the hemispheric side, but the intrahemispheric pattern of activation is the distinct feature for the neural processes underlying language and attention.

scholarly journals Researching Hemispheric Specialization in the Control of Final Position Accuracy Using the Transcranial Direct Current Stimulation

2017 ◽  
Vol 9 (7) ◽  
pp. 138 ◽  
Author(s):  
Mostafa Teymuri Kheravi ◽  
Alireza Saberi Kakhki ◽  
Hamidreza Taheri ◽  
Ali Ghanaie Chamanabad ◽  
Mohammad Darainy
Keyword(s):  
Direct Current ◽  
Right Hemisphere ◽  
Hemispheric Specialization ◽  
Final Position ◽  
Brain Functions ◽  
Position Accuracy ◽  
Left Dlpfc ◽  
Dorsolateral Prefrontal ◽  
The Right ◽  
Male University Students

Transcranial Direct Current Simulation (tDCS) can improve or disrupt brain functions and can therefore be used to investigate hemispheric specialization. Accordingly, this study was designed to research hemispheric specialization in the control of final position accuracy by comparing the effects of tDCS on dorsolateral prefrontal cortex (DLPFC) in the right and left hemispheres. Forty-three right-handed male university students (aged 21.34±1.61) volunteered to participate in this study. They were divided into the right DLPFC, left DLPFC, sham, and practice groups, including 12, 11, 9, and 11 participants, respectively. After learning motor skills in two days, the participants practiced final position accuracy in one day. They were asked to move the cursor toward the centers of targets appearing randomly at the top, middle, and bottom on the right side of a monitor as accurately and quickly as they could. At the time of practice, the participants received anodic stimulation in one hemisphere and cathodic stimulation in the other. The results indicated that the left anodic/right cathodic group (left DLPFC) showed the worst performance, which may be caused by the inhibitory effects of cathodic stimulations in the right DLPFC. Therefore, it is predicted that the right hemisphere may have greater specialization in final position accuracy of movement.

scholarly journals Brain Functional Asymmetry of Chimpanzees (Pan troglodytes): the Example of Auditory Laterality

2017 ◽  
Vol 48 (1) ◽  
pp. 87-92 ◽  
Author(s):  
Justyna Szymańska ◽  
Maciej Trojan ◽  
Anna Jakucińska ◽  
Katarzyna Wejchert ◽  
Maciej Kapusta ◽  
...  
Keyword(s):  
Pan Troglodytes ◽  
Right Hemisphere ◽  
Functional Asymmetry ◽  
Single Sample ◽  
Zoological Garden ◽  
Emotional Stimuli ◽  
Orientation Reaction ◽  
The Subject ◽  
Species Specific ◽  
The Right

Abstract The aim of this study was to verify whether chimpanzees (Pan troglodytes) demonstrate an auditory laterality during the orientation reaction, and which hemisphere is responsible for processing the emotional stimuli and which for the species-specific vocalizations. The study involved nine chimpanzees from the Warsaw Municipal Zoological Garden. They were tested individually in their bedrooms. Chimpanzees approached a tube filled with food, located in the centre of the cage. Randomly selected sounds were played from the speakers when the subject was focused on getting food. Individual reactions were observed and outcomes reported. The four types of sound used: thunderstorm, dog barking, chimpanzee vocalization and a zookeeper’s voice. To test whether chimpanzees demonstrate auditory laterality we used a single sample X2 test. The existence of auditory laterality has been confirmed. The sound of the storm caused the orientation reaction to the left, while chimpanzee vocalization - to the right. On this basis we can conclude that among chimpanzees, arousing stimuli are being processed by the right hemisphere, and species-specific vocalizations by the left. However, the set of stimuli was limited so the study did not unequivocally resolve this issue.

Language Hemispheric Dominance in Patients with Congenital Lesions of Eloquent Brain

Neurosurgery ◽  
2000 ◽  
Vol 47 (3) ◽  
pp. 562-570 ◽  
Author(s):  
Eric M. Vikingstad ◽  
Yue Cao ◽  
Ajith J. Thomas ◽  
Alex F. Johnson ◽  
Ghaus M. Malik ◽  
...  
Keyword(s):  
Early Development ◽  
Left Hemisphere ◽  
Right Hemisphere ◽  
Normal Subjects ◽  
Hemispheric Dominance ◽  
Similar Process ◽  
Stroke Patients ◽  
Congenital Lesions ◽  
Language Representation ◽  
The Right

ABSTRACT OBJECTIVE In 90% of normal subjects, the left hemisphere is dominant for language function. We investigated whether congenital lesions of the left perisylvian regions altered cortical language representation in right-handed individuals. METHODS Using functional magnetic resonance imaging, we studied language hemispheric dominance in five right-handed adult patients with congenitally acquired arteriovenous malformations (AVMs) originating from left hemispheric cortical language regions. The AVMs had not caused neurological symptoms during early development, but patients presented as adults with migraine, seizure, or minor hemorrhage. Results obtained from the AVM patients were contrasted to those from right-handed brain-injured stroke patients recovering from aphasia and to those from right-handed normal subjects. RESULTS During silent picture naming and verb generation tasks, cortical language networks lateralized primarily to the right hemisphere in the AVM group, compared with the left hemisphere in the normal group. This right hemisphere-shifted language network in the AVM group exceeded the shifts toward right hemispheric dominance found in the stroke group. CONCLUSION Patients with AVMs affecting the left perisylvian regions recruited the right hemisphere into language processing networks during early development, presumably in response to congenitally aberrant circulation. This early right hemisphere recruitment in the AVM patients exceeded the similar process in the brains of stroke patients whose left cortical language networks were damaged in adulthood. Our data provide evidence of effective plasticity in the developing human brain compared with the mature brain response to injury. Knowledge of cortical language representation should assist presurgical planning in patients with developmental anomalies affecting apparently language-dominant brain regions.

A special role for the right hemisphere in metaphor comprehension?

2007 ◽  
Vol 1146 ◽  
pp. 128-145 ◽  
Author(s):  
Seana Coulson ◽  
Cyma Van Petten
Keyword(s):  
Right Hemisphere ◽  
Special Role ◽  
Metaphor Comprehension ◽  
The Right

scholarly journals The Right Lateral Frontal Cortex Processes Features of Emotional Faces as a Function of Their Likelihood of Occurrence

2021 ◽  
Author(s):  
André Forster ◽  
Johannes Hewig ◽  
John JB Allen ◽  
Johannes Rodrigues ◽  
Philipp Ziebell ◽  
...  
Keyword(s):  
Frontal Cortex ◽  
Model Building ◽  
Right Hemisphere ◽  
Inferior Frontal Gyrus ◽  
Special Role ◽  
Emotional Faces ◽  
Stochastic Learning ◽  
Stimulus Features ◽  
The Right ◽  
Probabilistic Context

The lateral frontal Cortex serves an important integrative function for converging information from a number of neural networks. It thus provides context and direction to both stimulus processing and accompanying responses. Especially in emotion related processing, the right hemisphere has often been described to serve a special role including a special sensitivity to stochastic learning and model building. In this study, the right inferior frontal gyrus (riFG) of 41 healthy participants was targeted via ultrasound neuromodulation to shed light on the involvement of this area in the representation of probabilistic context information and the processing of currently presented emotional faces. Analyses reveal that the riFG does not directly contribute to processing of currently depicted emotional stimuli but provides for information about the estimated likelihood of occurrence of stimulus features.

scholarly journals SPATIAL ABILITY, 3D MODELING AND STYLES OF THINKING IN RELATION TO BRAIN HEMISPHERE DOMINANCE

2013 ◽  
Vol 54 (1) ◽  
pp. 91-98
Author(s):  
Andrej Šafhalter ◽  
Srečko Glodež ◽  
Karin Bakračevič Vukman
Keyword(s):  
Secondary School ◽  
Spatial Ability ◽  
Left Hemisphere ◽  
3D Modeling ◽  
Right Hemisphere ◽  
Hemispheric Dominance ◽  
Lower Secondary School ◽  
School Students ◽  
Brain Hemisphere ◽  
The Right

The progress of neuroscience and the understanding of children's styles of thinking are opening up new teaching styles that take into account differences in individual cognitive perception. Students can be classified into three distinctive perceptive types, according to the pronounced activity of one cerebral hemisphere in their thinking and information processing: left-hemisphere, right-hemisphere, and integrative type that does not exhibit a considerable dominance of one particular hemisphere. The purpose of the research was to establish differences in the 3D modeling encouraged progression of spatial ability between the left-hemisphere, right-hemisphere and integrative types of students. Computerized 3D modeling employed during technical extra-curricular activity in lower secondary school (grades 6 to 9) may affect the spatial ability of students, which according to other studies, appears to be predominantly connected with the right brain hemisphere. Research was conducted among a variety of lower secondary school students across Slovenia aged 11 – 15 years. Data on spatial ability and its development was collected using a hybrid spatial intelligence test conducted on two separate occasions, while assessment of the learning perception type of students – depending on hemispheric dominance – was obtained using a self-evaluation questionnaire. The 3D modeling of technical objects and objects drawn in orthographic or isometric projection was done with the software Trimble SketchUp. Key words: cognitive development, 3D modeling, hemispheric dominance, spatial ability.

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