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This paper describes the importance of theta frequency oscillations through analysis in emotion regulation and in various oscillatory patterns with reappraising sad and fear stimuli. Previous research suggests that the processing of fear and sadness has different neural bases, and that dynamics in theta frequency is particularly sensitive to the processing of emotional stimuli. However, it remains...
Prefrontal cortex (PFC) plays an important role in the emotional processing as well as in the functional brain network. Hyperactivity in the right dorsolateral prefrontal cortex (DLPFC) would be found in anxious participants. However, it is still unclear what the role of PFC played in a resting functional network. Continuous theta burst transcranial magnetic stimulation (cTBS) is an effective tool...
This study explored the phase synchronization in young, old adults, and old cognitively declined adults using 2 minutes baseline resting EEG data. Sixteen young students recruited from shanghai university and eighteen elders recruited from a community in Shanghai, including nine old adults and nine old cognitively declined adults, participated in our experiment. The global phase synchrony index was...
For insight into the laws of brain functional networks in the elder with different MMSE scores, 20 elders participated in our Opera experience task. We recorded their EEG at no-task and eyes-closed conditions. The elderly subjects were divided into high score group (HSG) and low score group (LSG) according to the MMSE score. The partially oriented coherent (PDC) values were computed separately in...
In this study we investigated the role right prefrontal cortex played on emotion-related processing while applying the active intervention by continuous theta burst stimulation (TBS). Electroencephalography (EEG) activities were recorded in 14 healthy subjects when they performed an emotional recognition task for facial expressions. TBS was delivered over dorsolateral prefrontal cortex (DLPFC) between...
The electroencephalography (EEG)-based phase synchronization in patients with mild cognitive impairment (MCI) was investigated in this study. Thirty elders from a community in Beijing, including 9 patients with MCI and 21 normal controls, participated in our experiment. We recorded their EEG when they were judging whether the color of two graphics was matched or not. The first 3 seconds EEG data after...
The abnormality of sensory gating is one of the important mechanisms in schizophrenia. The present study aims to discuss the auditory sensory gating effect on the dynamical complexity of brain activity in schizophrenia compared to normal control groups. Event-related Electroencephalograms (EEG) during the standard P50 sensory gating test were recorded from 9 schizophrenia and 14 normal controls. A...
Recent studies have applied Granger causality to electroencephalography (EEG) in event-related paradigms. This study aimed to explore the causal modulation of gamma band in response to emotional face. The EEGs during emotional face search task were recorded from 13 normal subjects (6 males and 7 females). We utilized granger causality to establish a causal model of different brain areas under different...
Cognitive control of emotion plays an important role in maintaining emotional stability in people's daily life. However, the neural mechanism remains unclear. This study examined the induced gamma activity in response to emotional expressions which was associated with the cognitive regulation. Electroencephalogram (EEG) was recorded in fifteen normal subjects when detecting emotional expressions....
Emotion and race are two major aspects of human mental life that are widely regarded as distinct. However, it is still under debate whether the race affects emotion processing or not. The studies based on Event-related potentials indicated many interesting results, but conflicting conclusions to some degree. This paper presents a study on how race influences emotion cognition during a cognitive task...
This paper presents a study about how emotion influences cognition. We used wavelet entropy as a tool to analyze event-related electroencephalograph during a cognitive task. Emotion and cognition are two major aspects of human mental life that are widely regarded as distinct but interacting. However, the mechanism of this interacting is still not well known. In our study, a recognition task with facial...
Stroke has been one of the leading causes of mortality and long-term morbidity around the world. Describing the cortical synchrony has been useful in understanding of central nervous system disorders after brain injury. In this paper, we investigated the large scale cortical phase synchronization derived from multichannel electroencephalogram (EEG) recordings of bilateral ischemic stroke patients(n...
The aim of this study is to compare the brain activities in depression patients and healthy controls by a quantitative method. In the present study, the wavelet entropy (WE) and subband segmentation analysis are proposed to characterize the degree of disorder and complexity of the electroencephalographic (EEG) signals recorded from 16 scalp electrodes in 20 depression patients and 20 normal controls...
A face with the inversion of eyes and mouth relative to the rest parts of the face looks grotesque when viewed upright but not when viewed upside down, which is called "the Thatcher illusion". Brain studies indicate that this is caused by the disruption of facial information processing. However, the neural mechanism of the face processing is still ambiguous. In the current study, we investigated...
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