Ilya ZakharovRussian Academy of Education | RAO · Psychological Institute, Developmental Behavioral Genetics Lab
Ilya Zakharov
PhD in Psychology
Study psychological, neurophysiological, and genetic sources of individual differences in cognition.
About
64
Publications
26,154
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392
Citations
Citations since 2017
Introduction
I work as a researcher in the Psychological Institute of Russian Academy of Education. My current interests lie in the intersection between behavioural genetics, network neuroscience, individual differences in cognition. I also try to advance open science practices among Russain scientists.
Additional affiliations
September 2014 - present
Psychological Institute of Russian Academy of Education
Position
- Research Associate
Publications
Publications (64)
In response to the COVID-19 pandemic, the Psychological Science Accelerator coordinated three large-scale psychological studies to examine the effects of loss-gain framing, cognitive reappraisals, and autonomy framing manipulations on behavioral intentions and affective measures. The data collected (April to October 2020) included specific measures...
Introduction
Brain age prediction has been shown to be clinically relevant, with errors in its prediction associated with various psychiatric and neurological conditions. While the prediction from structural and functional magnetic resonance imaging data has been feasible with high accuracy, whether the same results can be achieved with electroence...
Graph thresholding is a frequently used practice of eliminating the weak connections in brain functional connectivity graphs. The main aim of the procedure is to delete the spurious connections in the data. However, the choice of the threshold is arbitrary, and the effect of the threshold choice is not fully understood. Here we present the descript...
The COVID-19 pandemic (and its aftermath) highlights a critical need to communicate health information effectively to the global public. Given that subtle differences in information framing can have meaningful effects on behavior, behavioral science research highlights a pressing question: Is it more effective to frame COVID-19 health messages in t...
Cognitive effort is intrinsically linked to task difficulty, intelligence, and mental toughness. Intelligence reflects an individual’s cognitive aptitude, whereas mental toughness (MT) reflects an individual’s resilience in pursuing success. Research shows that parietal alpha oscillations are associated with changes in task difficulty. Critically,...
The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about...
This study investigates the psychometric properties of brief COPE in Russian schoolteachers. A total of 773 (91% female; M = 43, SD = 9.79) teachers participated in the study. Principal component analysis (PCA) and confirmatory factor analysis (CFA) were applied to assess the psychometric properties of the brief COPE. The Perceived Stress Scale (PS...
The study of moral judgements often centres on moral dilemmas in which options consistent with deontological perspectives (that is, emphasizing rules, individual rights and duties) are in conflict with options consistent with utilitarian judgements (that is, following the greater good based on consequences). Greene et al. (2009) showed that psychol...
Significance
Communicating in ways that motivate engagement in social distancing remains a critical global public health priority during the COVID-19 pandemic. This study tested motivational qualities of messages about social distancing (those that promoted choice and agency vs. those that were forceful and shaming) in 25,718 people in 89 countries...
Adolescents face many barriers on the path towards a STEM profession, especially girls. We examine the gender stereotypes, cognitive abilities, self-perceived ability and intrinsic values of 546 Russian school children from 12 to 17 years old by sex and STEM preferences. In our sample, STEM students compared to no-STEM have higher cognitive abiliti...
The graph thresholding is a frequently used practice of eliminating the weak connections in brain functional connectivity graphs. The main aim of the procedure is to delete the spurious connections in the data. However, the choice of the threshold is arbitrary and the effect of the threshold choice in not fully understood. Here we present the descr...
In the present manuscript, we present the preliminary analysis and the dataset from the ongoing Russian Sexual literacy research. With more than 2500 participants, it is the largest up-to-date open dataset regarding sexual literacy in Russian-speaking population. We encourage the researchers to collaborate with our team on the subsequent analysis....
The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about...
The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about...
There is growing awareness across the neuroscience community that the replicability of findings on the relationship between brain activity and cognitive phenomena can be improved by conducting studies with high statistical power that adhere to well-defined and standardized analysis pipelines. Inspired by efforts from the psychological sciences, and...
Citation: Feklicheva, I.; Zakharov, I.; Chipeeva, N.; Maslennikova, E.; Korobova, S.; Adamovich, T.; Ismatullina, V.; Malykh, S. Assessing the Relationship between Verbal and Nonverbal Cognitive Abilities Using Resting-State EEG Functional Connectivity. Brain Sci. 2021, 11, 94.
The present study investigates the relationship between individual dif...
Over the past 10 years, Oosterhof and Todorov’s valence–dominance model has emerged as the most prominent account of how people evaluate faces on social dimensions. In this model, two dimensions (valence and dominance) underpin social judgements of faces. Because this model has primarily been developed and tested in Western regions, it is unclear w...
The procedure of thresholding for graph construction is one of the common steps in calculating networks of brain connections. However, this procedure can lead to incomparable results from different studies. In the present study we aim to test the effect of thresholding or algorithmic reduction of the number of connected nodes on the construction of...
This article is devoted to the development of a model of an artificial neural network for predicting the level of nonverbal intelligence according to the EEG of the brain. Cognitive functioning relies on the synchronization between different brain structures. However, it is still
unclear how individual differences in intelligence are related to the...
There is growing awareness across the neuroscience community that the replicability of findings on the relationship between brain activity and cognitive phenomena can be improved by conducting studies with high statistical power that adhere to well-defined and standardised analysis pipelines. Inspired by efforts from the psychological sciences, and...
Web-surveys are one of the most popular forms of primary data collection used for various researches. However, mass surveys involve some challenges. It is required to consider different platforms and browsers, as well as different data transfer rates using connections in different regions of the country. Ensuring guaranteed data delivery in these c...
Introduction. This paper provides an overview of current research in individual differences in structural brain characteristics. The impact of individual differences in structural brain characteristics on individual differences in psychological characteristics is considered within the concept of endophenotypes, which represent an intermediate link...
Web-surveys have their own characteristics, including the need to consider various platforms and browsers, as well as different data transfer rate over networks in regions and territories of the country. Ensuring guaranteed data delivery under these conditions should determine the right choice of technologies for implementing web surveys. A solutio...
The aim of the present study was to investigate whether EEG resting state connectivity correlates with intelligence. One-hundred and sixty five participants took part in the study. Six minutes of eyes closed EEG resting state was recorded for each participant. Graph theoretical connectivity metrics were calculated separately for two well-establishe...
Aim. The purpose of the article is to study the correlation between physical activity and functional connectivity (FC) of the brain based on EEG data. Materials and methods. The study sample included 43 healthy persons aged from 17 to 35 years (26 women). The participants were divided into two groups. The first group (21 persons) was engaged in phy...
The paper presents result of the development of the open digital platform (DigitalPsyTools.ru), which provides support for conducting the large-scale psychological research. Development of the dedicated information and data analysis instrument has a goal to consolidate the efforts of the professional interdisciplinary specialists in the area of psy...
Over the last ten years, Oosterhof and Todorov’s valence-dominance model has emerged as the most prominent account of how people evaluate faces on social dimensions. In this model, two dimensions (valence and dominance) underpin social judgments of faces. Because this model has primarily been developed and tested in Western regions, it is unclear w...
В статье представлены результаты разработки открытой цифровой платформы (DigitalPsyTools.ru), предназначенной для масштабных психологических исследований. Создание специализированного информационно-аналитического инструментария направлено на консолидацию на единой платформе усилий специалистов в области междисциплинарных психологических исследовани...
The choice of the tools and programming technologies for information systems creation is relevant. For every projected system, it is necessary to define a number of criteria for development environment, used libraries and technologies. The paper describes the choice of technological solutions using the example of the developed web-based platform of...
Background. Mental fatigue is a state of tiredness, decreased motivation, and increased aversion to performing a task. Mental fatigue is associated with the length of engagement in an activity (time-on-task) and the degree of cognitive e ort required. In addition, mental fatigue can be affected by personality characteristics, such as trait or domai...
We live in an age of rapidly advancing genetic research. This research is generating new knowledge that has implications for personal health and well-being. The present study assessed the level of genetic knowledge and personal engagement with genetics in a large sample (N = 5404) of participants. Participants received secondary education in 78 cou...
Research into test-retest stability of emotional and cognitive responses has focused on behavioural and ERP components in relation to very well-established paradigms (such as oddball, mismatch negativity, continuous performance task, etc.). However, there is a lack of evidence for more integrative paradigms that contain a variety of tasks in a sing...
This paper considers the design and development of a web-based platform for conducting psychological online research. As a result, a scalable multicomponent platform architecture is formed, implying the separation into a public and private Intranet parts. To organize communication between components , it is intended to use the REST API. The basic u...
This paper considers the design and development of a web-based platform for conducting psychological online research. As a result, a scalable multicomponent platform architecture is formed, implying the separation into a public and private Intranet parts. To organize communication between components, it is intended to use the REST API. The basic un...
The choice of the tools and programming technologies for information systems creation is relevant. For every projected system, it is necessary to define a number of criterions for development environment, used libraries and technologies. The paper describes the choice of technological solutions of the example of the developed web-based platform of...
Исследования в сфере образования становятся междисциплинарными
и всё чаще используются подходы и методы целого
ряд других наук. Популяционные исследования позволяют
дать адекватную оценку индивидуально-психологических и возрастных
особенностей современных школьников в разные периоды
обучения. Они являются основой для определения современных
возраст...
A web platform for psychological research needs a single format of questionnaire tests to ensure interaction between its components. The study proposes a general test structure, variant questions, variations in response types, and an embedded domain-specific language for computations. The use of JSON is proposed and justified to store the hierarchi...
The study examines the design and development of a web-based platform for conducting online
psychological research. The authors substantiated the need for the development of a platform and
described advantages over the pen-and-paper approach, both with respect to data collection and
subsequent processing. The necessity of using NoSQL solutions for...
In this article we present the results of a cross-cultural study of non-verbal intelligence in primary school students. Significant differences with the effect size of 9% were found in non-verbal intelligence scores of 1057 students from Russia and Kyrgyzstan. The differences were also found for city and countryside residents (effect size of 10%)....
This article is devoted to contemporary methods of risk management under the conditions of crisis on financial markets. The article deals with developing the new approaches to studying finance and financial markets. It outlays new methods to compare fundamental events and their technical interpretation shown on quotation charts. It also introduces...
The study examines the relationship between intelligence and visual recognition processes in adolescents from Russia and Kyrgystan (n=327). We used “Raven Progressive Matrices” test to measure IQ and “Pattern Recognition memory” subtest of neuropsychological battery CANTAB to measure visual recognition. After adjusting for age effects number and la...
In this article we presented the computerized tools for psychological studies of memory. The importance of implementing computerized automated tools for psychological studies is discussed. It has been shown that this tools can be used both for cross-cultural and genetically informative studies. The validity of these tools for cross-cultural and gen...
Structural equation modelling (SEM) has become an important tool in behaviour genetic research. The application of SEM for multivariate twin analysis allows revealing the structure of genetic and environmental factors underlying individual differences in human traits. We outline the framework of twin method and SEM, describe SEM implementation of a...
In the current study we investigated the contribution of genetic and environmental factors to the relationship between the Big Five personality traits and nonverbal intelligence assessed with Raven’s Standard Progressive Matrices. The sample included a total of 290 people: 59 monozygotic (MZ) and 86 dizygotic (DZ, 58 same-sex and 28 opposite-sex) t...
Current study aimed to estimate the impact of genetic and environmental factors in the individual differences in non-verbal ability in Russian adolescents. The sample included 580 twins. Non-verbal ability was assessed by means of Standard Raven’s Progressive Matrices. Individual differences in non-verbal ability were explained almost entirely by f...
Projects
Projects (7)
The aim of the current study is to identify behavioral and neural correlates of different anxiety types during maths, verbal and spatial problem solving
The main goal of the project is the analysis of the aetiology of individual differences in mathematical ability and achievement. The project focuses on cognitive and non-cognitive aspects of mathematical learning including memory, motivation and anxiety. The project includes a variety of methods and approaches, in particular the twin method, EEG and cognitive psychology. The purpose of the project is to contribute to the development of new "mathematically friendly" education programmes from school to university.