A5061559918- Consumer Perception and Purchasing Behavior
- Neural and Behavioral Psychology Studies
- Education and Learning Interventions
- Functional Brain Connectivity Studies
- Cultural and Historical Studies
- Schizophrenia research and treatment
- Psychosocial Factors Impacting Youth
- Color perception and design
- Visual perception and processing mechanisms
- Neural dynamics and brain function
- Action Observation and Synchronization
- Digital Media and Visual Art
- Virtual Reality Applications and Impacts
- Face Recognition and Perception
- Diverse Approaches in Healthcare and Education Studies
- Mental Health and Psychiatry
- Healthcare Education and Workforce Issues
- Obsessive-Compulsive Spectrum Disorders
- Diverse Topics in Contemporary Research
- Neuroscience and Music Perception
- Education, Safety, and Science Studies
- Memory and Neural Mechanisms
- Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Multisensory perception and integration
- Educational Systems and Policies
Duksung Women's University
2012-2024
Seoul National University
1999-2012
Vanderbilt University
2003-2011
Schizophrenia is often accompanied by a range of visual perception deficits, with many involving impairments in motion perception. The presence perceptual abnormalities may impair neural processes that depend on normal analysis, which turn affect overall functioning dynamic environments. Here, we examine the integrity suppressive center-surround mechanisms schizophrenic patients. Center-surround suppression has been implicated functions, including figure–ground segregation and pursuit eye...
Background Anomalous visual perception is a common feature of schizophrenia plausibly associated with impaired social cognition that, in turn, could affect behavior. Past research suggests impairment biological motion schizophrenia. Behavioral and functional magnetic resonance imaging (fMRI) experiments were conducted to verify the existence this impairment, clarify its perceptual basis, identify accompanying neural concomitants those deficits. Methodology/Findings In Experiment 1, we...
Schizophrenia patients exhibit deficient processing of perceptual and cognitive information. However, it is not well-understood how basic deficits contribute to higher level problems in this mental disorder. Perception biological motion, a motion-based recognition task, relies on both visual motion social processing, thus providing useful paradigm evaluate the potentially hierarchical relationship between these two levels information processing.In study, we designed which signals were...
Obsessive-compulsive disorder (OCD) is associated with a variety of well-documented cognitive deficits such as in memory and executive functioning, but little known about basic perceptual concomitants OCD. This study investigated global, configural processing OCD using dynamic (moving) static stimuli minimal demands on function. Twenty patients 16 age- education-matched healthy control subjects were tested four tasks: two motion tasks involved detection discrimination human activity...
Perceptual salience improves the encoding of information into visual working memory (WM). However, factors that contribute to this facilitation effect are not well understood. This study tested influence target familiarity on WM encoding. In each trial, participants were presented with either one or three targets and asked encode their locations WM. Experiment 1, was manipulated by presenting an upright (familiar target) upside-down (unfamiliar/novel A. Increasing novelty led improved...
It has been reported that visual perception can be influenced not only by the physical features of a stimulus but also emotional valence stimulus, even without explicit emotion recognition. Some previous studies an anger superiority effect while others found happiness during perception. thus remains unclear as to which is more influential. In present study, we conducted two experiments using biological motion (BM) stimuli examine whether would affect BM perception; and if so, specific type...
While much is known about the role of prefrontal cortex (PFC) in working memory (WM) deficits schizophrenia, nature relationship between cognitive components WM and brain activation patterns remains unclear. We aimed to elucidate neural correlates maintenance component verbal by examining correct error trials with event-related fMRI.Twelve schizophrenia patients (SZ) thirteen healthy control participants (CO) performed a phonological delayed-matching-to-sample-task which set three nonsense...
AbstractIntroductionAlthough working memory (WM) impairments are well documented in schizophrenic patients (PSZ), the underlying mechanisms poorly understood. The aim of this study was to investigate role target salience during encoding determine whether impaired visual attention PSZ leads poor WM.MethodsThirty-one and 28 demographically matched healthy controls (HC) performed a spatial delayed-response task. Attentional demands were manipulated WM by presenting high salient (novel) or low...
Exploration of the ability to process socially relevant events portrayed by biological motion and identify underlying neuronal processes can provide clues for understanding pathophysiology psychosis. Individuals with schizotypal personality disorder (SPD) have pervasive interpersonal deficits odd behaviors. An neural mechanisms involved in perception relation activity clinical symptoms those is needed.To investigate specificity brain regions responsive individuals SPD compared healthy...
Abstract Schizophrenia is associated with the inability to control and coordinate thoughts, actions, perceptions. In conventional assessments of cognitive control, multiple sensory features stimuli are concomitantly manipulated, introducing a confounding role bottom-up perceptual information. To overcome this difficulty, we used an ambiguous visual stimulus (Necker cube), which allowed measurement constant input. Subjects (20 patients, 20 controls) were asked their perception transparent...
Abstract Foveated rendering (FR) technology is designed to improve the efficiency of graphical processes. In rendering, individualized approaches can help balance users’ experiences visual quality and saving computational resource. However, previous studies have not rigorously examined it related with FR techniques. To address this issue, we developed an (IFR) method using different central vision sizes peripheral resolutions across individuals in virtual reality. three user 88 participants...
Emotion detection using features presented in the body has been comparatively understudied compared to other emotional modalities. This study investigated and how emotions are revealed through bodily sensations movement information. We propose a novel visualization method for addressing part activation or deactivation associated with different motion capture data (bodily maps; BMMs) aim compare its existing methods of sensation towards computerised self-report BSMs). A user is conducted...
Embodiment through a virtual avatar is key element for people to feel that they are in the world.This study aimed elucidate interaction between 2 methods of eliciting embodiment avatar: motion synchronization and appearance similarity human avatar, understand (agency, body ownership, self-location) subjective experience (presence, simulator sickness, emotion) reality.Using full-body capture system, 24 participants experienced their avatars with 3D-scanned face size-matched from first-person...
Abstract Although context-processing deficits may be core features of schizophrenia, context remains a poorly defined concept. To test Phillips & Silverstein's model, we need to operationalize more precisely. We offer several useful ways framing and discuss enhancing or facilitating schizophrenic patients' performance under different contextual situations. Furthermore, creativity byproduct cognitive uncoordination.
Objective The functional strategic mechanisms in the brain during performing visuospatial working memory tasks, especially tasks with heavy load, are controversial. We conducted magnetic resonance imaging (fMRI) while sixteen subjects were face- and location-matching n-back to examine causal relations within frontoparietal networks. Methods applied a sophisticated method, structural equation modeling (SEM), fMRI data. data analyzed by extracting task-related eigenseries using principal...
심리학 분야에서는 구성개념을 수량화하고 구체화할 수 있는 척도를 개발하는 연구가 자주 수행된다. 본 연구의 목적은 분야의 척도 개발이나 타당화 과정에서 흔히 사용되고 탐색적 요인분석의 현황을 개관하고, 문제점들을 고찰하여 올바른 적용 방법을 제시하는 데 있다. 분석을 위해 최근 10년간 한국심리학회지에 게재된 학술지 논문들 중 요인분석을 사용한 280편의 논문을 선정하였다. 선정된 논문들을 대상으로 사용 목적, 참여자수, KMO 및 Bartlett 구형성 검정 결과 제시 여부, 요인추출방법 회전방식, 요인 결정방법 등을 조사하여 빈도분석을 실시하였다. 가장 빈번한 적용상의 오류로는 분석 목적에 맞지 않는 자료 추출 방법의 선택, 미제시, 요인의 상관성에 따른 회전 선택 문제, 결정 과정의 미언급 부적절성 꼽을 있었다. 연구에서는 이와 같은 고찰하고, 바람직한 해결방안을 제시하였다.
Studies of biological motion perception often use stimuli depicting human actions portrayed via point-light (PL) displays. Typically, counterpart, or control, for PL are created by spatially scrambling trajectories individual dots. Depending on the purpose study, however, this procedure may be inappropriate as a foil genuine animations, because spatial not only disrupts coherent activity but also eliminates pair-wise relationships among dots and, unless corrected, alters spread dot motions....
The morphological and laminar characteristics of the dorsal lateral geniculate nucleus (LGN) medial interlaminar (MIN) domestic dog (Canis familiaris) were studied by three-dimensional computer reconstruction labeled retinal afferents following intraocular HRP injections. As previously reported, LGN consisted layers A, A1, C, C1, C2, C3. Layers C2 receive contralateral-eye inputs, A1 C1 ipsilateral inputs. MIN was found to have four orderly interdigitating layers; 1, 2, 3, 4, lateral. 1 3...
Measuring body image is crucial at both personal and social levels. Previous studies have attempted to quantitatively measure but methods for measuring change recognition over time not yet been established. The present study proposes a novel human-computer interaction technique using dynamic morphing ownership illusion, we conducted user investigate how illusion gender would affect recognition. results showed that participant’s was weak when the strong. In addition, female participants were...