Ivan Ivanchei

• PhD
• PostDoc Position at Ghent University

Recent theories claim that valence plays an important role in conscious perception (eg. Barrett & Bar, 2009). Inspired by these theories, we tested how valence judgments relate to similarity judgments and whether they correlate with different stages of processing in deep neural networks (DNNs). To support the hypothesis that all perception is valen...

Cognitive conflict is typically experienced as negative, which has been argued to drive adaptive behavior following a conflict. We tried to change the negative value of conflict using evaluative conditioning, and measured changes in conflict adaptation in a subsequent Stroop task (N = 416 Prolific participants, English native speakers from differen...

Human task performance elicits diverse subjective metacognitive experiences, such as boredom, effort, fatigue and frustration, which are thought to play important roles in the monitoring and regulation of cognitive processes. Yet, their specific contributions to task performance remain poorly understood. Therefore, we investigated temporal dynamics...

People tend to slow down after committing an error in many tasks. However, some studies failed to observe such post-error slowing. Furthermore, recent work found speeding after another type of sub-optimal outcomes: people often speed up after losses in gambling situations. What features determine whether people slow down or speed up after sub-optim...

In two experiments, we investigated a cross-task transfer of implicit knowledge between two dissimilar tasks requiring manual motor activity. In the first experiment, participants were aware of the relevance of their experience in one task for the solution of the other. In this condition, we observed transfer. In the second experiment, the particip...

In two experiments, we investigated a cross-task transfer of implicit knowledge between two dissimilar tasks requiring manual motor activity. In the first experiment, participants were aware of the relevance of their experience in one task for the solution of the other. In this condition, we observed transfer. In the second experiment, the particip...

Recent studies have demonstrated that cognitive conflict, as experienced during incongruent Stroop-trials, is automatically evaluated as negative in line with theories emphasizing the aversive nature of conflict. However, while this is well-replicated when people only see the conflict stimuli, results are mixed when participants also respond to sti...

Measurement of consciousness is one of the key methodological problems of cognitive experiments. The choice of method is often made without reference to a specific theory or the explication of the underlying assumptions about the nature of the phenomenon being measured. It is suggested that the lack of theoretical justification of the employed meth...

Recent studies have demonstrated that cognitive conflict, as experienced during incongruent Stroop-trials, is automatically evaluated as negative in line with theories emphasizing the aversive nature of conflict. However, while this is well-replicated when people only see the conflict stimuli, results are mixed when participants also respond to sti...

We present a study investigating the neural correlates of artificial grammar learning – a process of implicit processing of regularities in the environment. Participants observed visual stimuli that were created using a set of complex rules and then classified items from a new stimulus set as either consistent with these rules or not. Unlike previo...

We address the question how people’s opinion and features of information interact in the process of indirect social influence. Implicit learning was considered as a mechanism for conformity in social perception. We carried out 2 experiments using a hidden covariation detection paradigm. In a learning phase, participants memorized a set of female ph...

Implicit learning research is closely related to the problem of consciousness measurement. The chapter reviews trial-by-trial consciousness measures and focuses on the effects they can have on the learning process itself. The requirements of awareness measures are discussed with the focus on the non-reactivity criterion which is the effect of the m...

Attempts to estimate the contribution made by motor activity to insight problem solving is hindered by a lack of detailed description of motor behavior. The goal of this study was to develop and put to the test a novel method for studying the dynamics of insight problem solving based on a quantitative analysis of ongoing motor activity. As a proper...

Статья посвящена исследованию автоматической аффективной реакции, возникающей в ответ на противоречие в обрабатываемой информации. Противоречие моделировалось путем формирования у испытуемого имплицитного навыка (различение грамматических и неграмматических псевдоязыковых стимулов) и последующего предъявления противоречивой информации. В противореч...

People hiss and swear when they make errors, frown and swear again when they encounter conflicting information. Such error- and conflict-related signs of negative affect are found even when there is no time pressure or external reward and the task itself is very simple. Previous studies, however, provide inconsistent evidence regarding the affectiv...

The article presents a database of women’s faces for research in the field of social perception. Each of 55 models was photographed full-face under four conditions: with a neutral or smiling face with hair up or down. The database includes the results of facial morphometry (relative positions of homologous points), expert ratings of appearance styl...

Основная цель проекта – проверка предположения о том, что имплицитное научение может быть одним из механизмов, обеспечивающих конформное поведение, усвоение социальных норм и стереотипов. Мы выделили два направления для экспериментальных исследований: изучение влияния социальной обратной связи (мнения других людей) на имплицитное научение в социаль...

This paper investigates the characteristics of the affective component in the structural mere exposure effect (SMEE). Two approaches are considered – fluency attribution approach (FA) and affect as predictive efficiency approach (APE) – within a predictive coding framework. Using the artificial grammar learning and affective priming paradigms, we d...

Systematic research into implicit learning requires well-developed awareness-measurement techniques. Recently, trial-by-trial measures have been widely used. However, they can increase complexity of a study because they are an additional experimental variable. We tested the effects of these measures on performance in artificial grammar learning stu...

Preferences are determined not only by stimuli themselves but also by the way they are processed in the brain. The efficacy of cognitive processing during previous interactions with stimuli is particularly important. When observers make errors in simple tasks such as visual search, recognition, or categorization, they later dislike the stimuli asso...

Работа посвящена созданию и апробации базы реалистичных стимулов для исследований в области социальной перцепции. База содержит погрудные фотопортреты 55 девушек в возрасте от 17 до 27 лет, которые были сфотографированы дважды: один раз с распущенными волосами, один раз — с собранными (всего 110 фотографий). К каждой фотографии приводится три типа...

Изучение принятия решения в условии социального влияния имеет долгую историю в психологии. Несмотря на тот факт, что первые, и, возможно, самые известные эксперименты в данной области, демонстрируют эффект конформизма в перцептивных задачах (Sherif, 1937; Asch, 1951). Большинство последующих исследований было посвящено изучению социальных переменны...

In the well-known "dress" photograph, people either see the dress as blue with black stripes or as white with golden stripes. We suggest that the perception of colors is guided by the scene interpretation and the inferred positions of light sources. We tested this hypothesis in two online studies using color matching to estimate the colors observer...

The subject of the work is simulation of human cognitive processes. Authors propose a computational model of artificial grammar learning – the task allowing researchers to explore processing of environmental statistical regularities in humans. A number of the experiments are presented in the literature demonstrating that several cognitive systems t...

The current study investigated the ways of prevention and correction of the reccuring errors within the learning process. The authors assess the influence on the occurrence of errors of the method of change of irrelevant to the tasks characteristics with the aim to increase the efficiency of the tasks solving and correcting the reccuring errors. I...

Almost 50 years ago, Reber described implicit learning as the unintentional and unconscious processing of regularities in the environment. Since then, psychologists have actively investigated this phenomenon. However, there is currently no unambiguous description of the mechanisms of implicit learning. Moreover, the descriptions of implicit learnin...

Работа посвящена двум вопросам, связанным с метакогнитивными мерами осознанности, а именно тому, насколько сильно они различаются по своим характеристикам и в какой степени они отражают осознанность приобретаемого в ходе имплицитного научения знания. Сравниваются оценки уверенности и совершение ставок на собственный ответ. Показано, что две эти мер...

Работа посвящена исследованию взаимодействия осознаваемых и неосознаваемых процессов при научении искусственной грамматике. Основной вопрос исследования: как повлияет противоречие между двумя имплицитно усвоенными закономерностями, содержащимися в стимулах, на принятие решения об их классификации. Результаты проведенного эксперимента показали, что...

This study is dedicated to the investigation of interaction of conscious and unconscious processes in artificial grammar learning. The main problem: how the conflict between two implicitly learned regularities contained in stimuli influences classification of them. The results of the experiment suggest that subjects implicitly learned not only the...

Статья посвящена механизмам возникновения повторяющихся ошибок у спортсменов — как на этапе формирования навыка, так и на этапе его использования в условиях соревнований. Выдвинуто предположение, что возникающие ошибки во многом могут быть связаны с неэффективными стратегиями контроля, в частности с избытком проверочных операций. Для проверки выдви...

Различение процессов осознаваемой и неосознаваемой перера- ботки информации стало одной из центральных проблем когнитивной психологии. В настоящей работе данная проблема рассматривается на примере исследований феномена имплицитного научения. Проводится сопоставление накопленных эмпирических данных, используемых ме- тодов исследования и основных тео...