scholarly journals Dysfunctional temporal stages of eye-gaze perception in adults with ADHD: a high-density EEG study

2021 ◽  
Author(s):  
Cheyenne Mauriello ◽  
Eleonore Pham ◽  
Samika Kumar ◽  
Camille Piguet ◽  
Jean-Michel Aubry ◽  
...  
Keyword(s):  
Social Cognitive ◽  
Eye Gaze ◽  
Event Related Potentials ◽  
Adult Brain ◽  
Matching Task ◽  
Gaze Perception ◽  
Neural Basis ◽  
Direct Gaze ◽  
Related Potentials ◽  
Reduced Activity

ADHD have been associated with social cognitive impairments across the lifespan, but no studies have specifically addressed the presence of abnormalities in eye-gaze processing in the adult brain. This study investigated the neural basis of eye-gaze perception in adults with ADHD using event-related potentials (ERP). Twenty-three ADHD and 23 controls performed a delayed face-matching task with neutral faces that had either direct or averted gaze. ERPs were classified using microstate analyses. ADHD and controls displayed similar P100 and N170 microstates. ADHD was associated with cluster abnormalities in the attention-sensitive P200 to direct gaze, and in the N250 related to facial recognition. For direct gaze, source localization revealed reduced activity in ADHD for the P200 in the left/midline cerebellum, as well as in a cingulate-occipital network at the N250. These results suggest brain impairments involving eye-gaze decoding in adults with ADHD, suggesting that neural deficits persist across the lifespan.

Abnormal Neural Basis of Emotional Conflict Control in Treatment-Resistant Depression

2016 ◽  
Vol 48 (2) ◽  
pp. 103-110 ◽  
Author(s):  
Song Xue ◽  
Shanshan Wang ◽  
Xia Kong ◽  
Jiang Qiu
Keyword(s):  
Stroop Task ◽  
Event Related Potentials ◽  
Frontal Region ◽  
Healthy Controls ◽  
Treatment Resistant Depression ◽  
Treatment Resistant ◽  
Neural Basis ◽  
Emotional Conflict ◽  
Related Potentials ◽  
Resistant Depression

Emotional conflict has received increased attention as a research topic. The objective of this study is to confirm that the processing of emotional conflict is impaired in treatment-resistant depression (TRD). We compared the event-related potentials of 17 patients with TRD and 17 healthy controls during the face-word Stroop task, which is an effective way of assessing the effects of emotional conflict directly. Compared with healthy controls, the accuracy scores of the TRD patients were lower in both “congruent stimuli” and “incongruent stimuli” conditions, and their response times were longer. The TRD patients also had larger N2 amplitudes over the frontal region, regardless of stimulus condition, which might reflect that TRD patients pay more attention to emotional information. A larger P3 amplitude over the frontal region for “incongruent stimuli minus congruent stimuli” was also found among patients with TRD, which indicates interference effects in the Stroop task. The results of this study provide novel behavioral and neurophysiological evidence of anomalies in cognitive inhibition among patients with TRD using the word-face task. These findings not only improve our understanding of deficient inhibition in TRD, but also pave the way for a cognitive neuropsychiatric model of depression.

scholarly journals Aberrant Activation of the Mentalizing Brain System During Eye Gaze Discrimination in Bipolar Disorder

2021 ◽  
Author(s):  
Ivy F. Tso ◽  
Cynthia Z Burton ◽  
Carly A Lasagna ◽  
Saige Rutherford ◽  
Beier Yao ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Cognitive Deficits ◽  
Social Cognitive ◽  
Eye Gaze ◽  
Healthy Controls ◽  
Gaze Perception ◽  
Brain System ◽  
Social Cognitive Deficits ◽  
Mentalizing System ◽  
Preferential Activation

Bipolar disorder (BD) is associated with a range of social cognitive deficits. This study investigated the functioning of the mentalizing brain system in BD probed by an eye gaze perception task during fMRI. Compared with healthy controls (n = 21), BD participants (n = 14) showed reduced preferential activation for self-directed gaze discrimination in the medial prefrontal cortex (mPFC) and temporo-parietal junction (TPJ), which was associated with poorer cognitive and social functioning. Aberrant functions of the mentalizing system should be further investigated as marker of social dysfunction and treatment targets.

Facial Emotion Processing and Language During Middle Childhood: An Event Related Potential Study

2021 ◽  
Author(s):  
Felicity J Bigelow ◽  
Gillian M Clark ◽  
Jarrad Lum ◽  
Peter Gregory Enticott
Keyword(s):  
Middle Childhood ◽  
Cognitive Skills ◽  
Social Cognitive ◽  
Emotion Processing ◽  
Event Related Potentials ◽  
Event Related Potential ◽  
Facial Emotion ◽  
Physiological Indicators ◽  
Facial Emotion Processing ◽  
Related Potentials

Facial emotion processing (FEP) is critical to social cognitive ability. Developmentally, FEP rapidly improves in early childhood and continues to be fine-tuned throughout middle childhood and into adolescence. Previous research has suggested that language plays a role in the development of social cognitive skills, including non-verbal emotion recognition tasks. Here we investigated whether language is associated with specific neurophysiological indicators of FEP. One hundred and fourteen children (4-12 years) completed a language assessment and a FEP task including stimuli depicting anger, happiness, fear, and neutrality. EEG was used to record key event related potentials (ERPs; P100, N170, LPP at occipital and parietal sites separately) previously shown to be sensitive to faces and facial emotion. While there were no main effects of language, the P100 latency to negative expressions appeared to increase with language, while LPP amplitude increased with language for negative and neutral expressions. These findings suggest that language is linked to some early physiological indicators of FEP, but this is dependent on the facial expression. Future studies should explore the role of language in later stages of neural processing, with a focus on processes localised to ventromedial prefrontal regions.

Categorical Perception of Happiness and Fear Facial Expressions: An ERP Study

2002 ◽  
Vol 14 (2) ◽  
pp. 210-227 ◽  
Author(s):  
S. Campanella ◽  
P. Quinet ◽  
R. Bruyer ◽  
M. Crommelinck ◽  
J.-M. Guerit
Keyword(s):  
Facial Expressions ◽  
Emotional Expression ◽  
Categorical Perception ◽  
Event Related Potentials ◽  
Matching Task ◽  
Emotional Expressions ◽  
Behavioral Studies ◽  
Temporal Course ◽  
Related Potentials ◽  
Repetition Priming Effect

Behavioral studies have shown that two different morphed faces perceived as reflecting the same emotional expression are harder to discriminate than two faces considered as two different ones. This advantage of between-categorical differences compared with within-categorical ones is classically referred as the categorical perception effect. The temporal course of this effect on fear and happiness facial expressions has been explored through event-related potentials (ERPs). Three kinds of pairs were presented in a delayed same–different matching task: (1) two different morphed faces perceived as the same emotional expression (within-categorical differences), (2) two other ones reflecting two different emotions (between-categorical differences), and (3) two identical morphed faces (same faces for methodological purpose). Following the second face onset in the pair, the amplitude of the bilateral occipito-temporal negativities (N170) and of the vertex positive potential (P150 or VPP) was reduced for within and same pairs relative to between pairs. This suggests a repetition priming effect. We also observed a modulation of the P3b wave, as the amplitude of the responses for the between pairs was higher than for the within and same pairs. These results indicate that the categorical perception of human facial emotional expressions has a perceptual origin in the bilateral occipito-temporal regions, while typical prior studies found emotion-modulated ERP components considerably later.

Neural Basis of Semantically Dependent and Independent Cross-Modal Boosts on the Attentional Blink

2020 ◽  
Author(s):  
Song Zhao ◽  
Chengzhi Feng ◽  
Xinyin Huang ◽  
Yijun Wang ◽  
Wenfeng Feng
Keyword(s):  
Object Recognition ◽  
Attentional Blink ◽  
Temporal Dynamics ◽  
Recognition Task ◽  
Event Related Potentials ◽  
Visual Object ◽  
Visual Object Recognition ◽  
Neural Basis ◽  
Related Potentials ◽  
The Cross

Abstract The present study recorded event-related potentials (ERPs) in a visual object-recognition task under the attentional blink paradigm to explore the temporal dynamics of the cross-modal boost on attentional blink and whether this auditory benefit would be modulated by semantic congruency between T2 and the simultaneous sound. Behaviorally, the present study showed that not only a semantically congruent but also a semantically incongruent sound improved T2 discrimination during the attentional blink interval, whereas the enhancement was larger for the congruent sound. The ERP results revealed that the behavioral improvements induced by both the semantically congruent and incongruent sounds were closely associated with an early cross-modal interaction on the occipital N195 (192–228 ms). In contrast, the lower T2 accuracy for the incongruent than congruent condition was accompanied by a larger late occurring cento-parietal N440 (424–448 ms). These findings suggest that the cross-modal boost on attentional blink is hierarchical: the task-irrelevant but simultaneous sound, irrespective of its semantic relevance, firstly enables T2 to escape the attentional blink via cross-modally strengthening the early stage of visual object-recognition processing, whereas the semantic conflict of the sound begins to interfere with visual awareness only at a later stage when the representation of visual object is extracted.

The Cultural Neuroscience of Holistic Thinking

2018 ◽  
Author(s):  
Bobby K. Cheon ◽  
Rongxiang Tang ◽  
Joan Y. Chiao ◽  
Yi-Yuan Tang
Keyword(s):  
Social Interactions ◽  
Social Cognitive ◽  
Cultural Influences ◽  
Event Related Potentials ◽  
Neural Systems ◽  
Holistic Thinking ◽  
Psychological Theories ◽  
Cultural Systems ◽  
The World ◽  
Related Potentials

Cultural diversity in patterns for understanding and conceptualizing one’s relationships with others may have led to diverse cultural systems for interpreting, thinking, and reasoning about the world. Eastern holistic systems of thought rely on connectedness and relations as a primary way of understanding the world, whereas Western analytic systems of thought rely on discreteness or substansiveness as an epistemological way of thinking. From attention and cognition to social cognitive processes, neural systems have likewise adapted differently across cultural contexts to facilitate divergent systems of social interactions and relations. This chapter reviews recent evidence for cultural influences on neural systems of analytic/holistic thinking, and discusses the relevance of this neuroscientific evidence, such as that from functional magnetic resonance imaging and analysis of event-related potentials, for cultural-psychological theories of holism and dialecticism.

scholarly journals Neural Basis of Intrinsic Motivation: Evidence from Event-Related Potentials

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Jia Jin ◽  
Liping Yu ◽  
Qingguo Ma
Keyword(s):  
Intrinsic Motivation ◽  
Social Factor ◽  
Event Related Potentials ◽  
P300 Amplitude ◽  
Neural Basis ◽  
Outcome Feedback ◽  
Quantitative Measurements ◽  
Machine Learning Model ◽  
Stop Watch ◽  
Related Potentials

Human intrinsic motivation is of great importance in human behavior. However, although researchers have focused on this topic for decades, its neural basis was still unclear. The current study employed event-related potentials to investigate the neural disparity between an interesting stop-watch (SW) task and a boring watch-stop task (WS) to understand the neural mechanisms of intrinsic motivation. Our data showed that, in the cue priming stage, the cue of the SW task elicited smaller N2 amplitude than that of the WS task. Furthermore, in the outcome feedback stage, the outcome of the SW task induced smaller FRN amplitude and larger P300 amplitude than that of the WS task. These results suggested that human intrinsic motivation did exist and that it can be detected at the neural level. Furthermore, intrinsic motivation could be quantitatively indexed by the amplitude of ERP components, such as N2, FRN, and P300, in the cue priming stage or feedback stage. Quantitative measurements would also be convenient for intrinsic motivation to be added as a candidate social factor in the construction of a machine learning model.

scholarly journals Cortico-Cortical Interactions in Spatial Attention: A Combined ERP/TMS Study

2006 ◽  
Vol 95 (5) ◽  
pp. 3277-3280 ◽  
Author(s):  
Giorgio Fuggetta ◽  
Enea F. Pavone ◽  
Vincent Walsh ◽  
Monika Kiss ◽  
Martin Eimer
Keyword(s):  
Posterior Parietal Cortex ◽  
Right Hemisphere ◽  
Response Times ◽  
Event Related Potentials ◽  
Single Pulse ◽  
Behavioral Effect ◽  
Search Display ◽  
Delayed Response ◽  
Neural Basis ◽  
Related Potentials

To gain insight into the neural basis of visual attention, we combined transcranial magnetic stimulation (TMS) and event-related potentials (ERPs) during a visual search task. Single-pulse TMS over right posterior parietal cortex (rPPC) delayed response times to targets during conjunction search, and this behavioral effect had a direct ERP correlate. The early phase of the N2pc component that reflects the focusing of attention onto target locations in a search display was eliminated over the right hemisphere when TMS was applied there but was present when TMS was delivered to a control site (vertex). This finding demonstrates that rPPC TMS interferes with attentional selectivity in remote visual areas.

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