Visual evoked potentials elicited by culturally-specific images in women with different levels of hostility

Vorobyeva, Elena; Kovsh, Ekaterina; Yavna, Denis V.

doi:10.1016/j.ijpsycho.2016.07.225

Cited by 4 publications

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“…The stimuli database ( Stoletniy et al , 2020b ) of the experiment, contained 445 images, has already been used in our previous works ( Ermakov et al , 2016 ; Vorobyeva et al , 2016 ). 147 of them are conditionally negative, 149 are positive, 149 are neutral.…”

Section: Methodsmentioning

confidence: 99%

Association between categorization of emotionally-charged and neutral visual scenes and parameters of event-related potentials in carriers of different COMT, HTR2A, BDNF gene genotypes

et al. 2020

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Background: This study aimed to discover the association between parameters of event-related potentials (ERPs) and categorization of images of visual scenes, both emotionally-charged and neutral, in carriers of different genotypes of the COMT, HTR2A, BDNF genes. Methods: Electroencephalogram (EEG) and ERPs were recorded at 128 leads, with two ear referents. Images of different visual scenes were presented to the study participants sequentially on a monitor screen. The participants’ task was to examine these images and indicate what emotions (negative, neutral or positive) they elicit. Comparison of event-related potentials was carried out using unpaired Student t-test in EEGLAB toolbox. Results: COMT. A stronger reaction, as reflected in the amplitude of the ERPs, in participants with the recessive homozygous Met/Met genotype was observed on latency around 200 ms to the stimuli, assessed as positive. Carriers of dominant homozygous Val/Val genotype had higher amplitude of 200 ms peak when assessed scene images as either neutral or negative in comparison to other genotypes. Participant with the Val/Met heterozygous genotype had higher amplitude of ERP that Met/Met group on same latency when assessed stimuli as negative. HTR2A. Significant increase in negativity in the parietal-occipital regions revealed in the range of 350-420 ms in participants with the recessive homozygous A/A genotype when choosing any type of assessment, compared to carriers of the heterozygous genotype A/G and the dominant homozygous G/G genotype. BDNF. Participants with Val/Val genotype categorized the visual images more thoroughly, as reflected in greater activation of the parietal-occipital zones and higher amplitude on ERP peak on 190 ms (negative assessment) and 160 ms (neutral assessment) then Val/Met carriers. Conclusions: The COMT, HTR2A, BDNF gene different genotypes are associated with the process of categorizing emotionally charged and neutral visual scenes, and this relationship is reflected in the ERP parameters.

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Section: Methodsmentioning

confidence: 99%

Association between categorization of emotionally-charged and neutral visual scenes and parameters of event-related potentials in carriers of different COMT, HTR2A, BDNF gene genotypes

et al. 2020

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show abstract

“…For this research, 223 images were selected from a database used in previous experiments: 85 of them are conditionally negative, 75 are neutral and 63 are positive (Ermakov et al, 2016;Ermakov et al, 2017;Stoletniyet al, 2020b;Vorobyeva et al, 2016); stimuli are available as Extended data (Kovsh & Yavna, 2020). To obtain stimuli with corresponding characteristics, the computer model of the second-order visual mechanisms developed by (Babenko & Yavna, 2018) was applied.…”

Section: Preparing Stimulimentioning

confidence: 99%

Associations between genetic factors in individualization of visual perception and components of event-related potentials during assessment of emotional visual stimuli (scenes) with distinct second-order features

et al. 2020

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Background: The aim of this paper is to investigate the associations between polymorphisms in the BDNF, COMT, and HTR2A genes with peculiarity of visual perception. In particular, how the carriers of different genotypes of Indicated genes emotionally evaluating visual scenes with distinct second-order features (images modulated by contrast) and how corresponding process is reflected in event-related brain activity (ERP). Methods: The study involved students who underwent PCR-based genetic analysis with the release of BDNF, COMT, and HTR2A genotypes. Participants were asked to emotionally assesse the specific stimuli – visual scenes that were generated from contrast modulations. At the same time the EEG were recorded using a 128-electrodes system. The average frequency of responses and ERPs for different emotional evaluations (negative, neutral and positive) were analyzed. Results: The study showed the BDNF Val/Val polymorphism was associated with the increase in the P2 amplitude in the occipital regions compared to the Val/Met genotype regardless of emotional evaluation. The COMT Met/Met genotype polymorphism associated with the increase of N170 negativity in the occipital regions during evaluation task. The HTR2A polymorphism A/A associated with increase in the P1 amplitude when positive or negative assessment were chosen, and decrease of later positive peak when neutral evaluation was chosen. Conclusions: The results suggested that emotional evaluation and recognition of visual scenes with distinct second-order features, as well as various strategies for processing visual information, reflected in amplitude and latency of different ERPs components and associated with the different genotypes of BDNF, COMT, and HTR2A genes. The indicated interconnections can act as genetic basis of individualize the mechanisms of visual perception.

show abstract

Association between categorization of emotionally-charged and neutral visual scenes and parameters of event-related potentials in carriers of COMT, HTR2A, BDNF gene polymorphisms

et al. 2020

View full text Add to dashboard Cite

Background: This study aimed to discover the association between parameters of event-related potentials (ERPs) and categorization of images of visual scenes, both emotionally-charged and neutral, in carriers of polymorphisms of the COMT, HTR2A, BDNF genes. Methods: Electroencephalogram (EEG) and ERPs were recorded at 128 leads, with two ear referents. Images of different visual scenes were presented to the study participants sequentially on a monitor screen. The participants’ task was to examine these images and indicate what emotions (negative, neutral or positive) they elicit. Comparison of event-related potentials was carried out using unpaired Student t-test in EEGLAB toolbox. Results: COMT. A stronger reaction, as reflected in the amplitude of the ERPs, in participants with the recessive homozygous Met/Met genotype was observed on latency around 200 ms to the stimuli, assessed as positive. Carriers of dominant homozygous Val/Val genotype had higher amplitude of 200 ms peak when assessed scene images as either neutral or negative in comparison to other genotypes. Participant with the Val/Met heterozygous genotype had higher amplitude of ERP that Met/Met group on same latency when assessed stimuli as negative. HTR2A. Significant increase in negativity in the parietal-occipital regions revealed in the range of 350-420 ms in participants with the recessive homozygous A/A genotype when choosing any type of assessment, compared to carriers of the heterozygous genotype A/G and the dominant homozygous G/G genotype. BDNF. Participants with Val/Val genotype categorized the visual images more thoroughly, as reflected in greater activation of the parietal-occipital zones and higher amplitude on ERP peak on 190 ms (negative assessment) and 160 ms (neutral assessment) then Val/Met carriers. Conclusions: The COMT, HTR2A, BDNF gene polymorphisms are associated with the process of categorizing emotionally charged and neutral visual scenes, and this relationship is reflected in the ERP parameters.

show abstract

Visual evoked potentials elicited by culturally-specific images in women with different levels of hostility

Cited by 4 publications

References 0 publications

Association between categorization of emotionally-charged and neutral visual scenes and parameters of event-related potentials in carriers of different COMT, HTR2A, BDNF gene genotypes

Association between categorization of emotionally-charged and neutral visual scenes and parameters of event-related potentials in carriers of different COMT, HTR2A, BDNF gene genotypes

Associations between genetic factors in individualization of visual perception and components of event-related potentials during assessment of emotional visual stimuli (scenes) with distinct second-order features

Association between categorization of emotionally-charged and neutral visual scenes and parameters of event-related potentials in carriers of COMT, HTR2A, BDNF gene polymorphisms

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