- Diest, Flanders, Belgium
Hendrik Peuskens
KU Leuven, Medicine, Psychiatry, Department Member
Research Interests:
Observer motion in a stationary visual environment results in an optic flow pattern on the retina, which in simple situations can be used to determine the direction of self motion or heading. The present study, using positron emission... more
Observer motion in a stationary visual environment results in an optic flow pattern on the retina, which in simple situations can be used to determine the direction of self motion or heading. The present study, using positron emission tomography (PET) and functional magnetic resonance imaging (fMRI), investigated the human cerebral activation pattern, elicited when subjects viewing a ground plane optic flow pattern actively judged heading. Several successive experiments controlled for visual input, visuospatial attention, and motor response effects. Results indicate that the network specifically involved in heading consists of only two motion sensitive areas: human MT/V5+, including an inferior satellite, and dorsal intraparietal sulcus area (DIPSM/L), predominantly in the right hemisphere, plus a dorsal premotor region bilaterally. These results suggest possible homologies with the dorsal part of the medial superior temporal area and area 7a in the monkey.
Research Interests:
Studies on the face validity of DSM-5 Section II categorical personality disorder (PD) symptoms indicate a bias against older adults. To extend these results, this article explores whether categorically and dimensionally scored PD... more
Studies on the face validity of DSM-5 Section II categorical personality disorder (PD) symptoms indicate a bias against older adults. To extend these results, this article explores whether categorically and dimensionally scored PD symptoms of DSM-5 Section II, as measured in the Assessment of DSM-IV Personality Disorders (ADP-IV; Schotte & de Doncker, 1994), corroborate potential age bias across younger (aged 18-34), middle-aged (35-59 years), and older adults (aged 60-75). Differential item functioning (DIF) analyses, following a classical test theory approach, showed that 2 of the 79 symptoms were measured differently across 3 age groups when categorically assessed, and 4 when dimensionally measured. Nevertheless, subsequent differential test functioning analyses supported a low aggregated impact of DIF on the dimensional scales, justifying mean-level comparisons across age groups. Generalizability of the results is discussed in light of methodological issues concerning the resear...
Research Interests:
Observer motion in a stationary visual environment results in an optic flow pattern on the retina, which in simple situations can be used to determine the direction of self motion or heading. The present study, using positron emission... more
Observer motion in a stationary visual environment results in an optic flow pattern on the retina, which in simple situations can be used to determine the direction of self motion or heading. The present study, using positron emission tomography (PET) and functional magnetic resonance imaging (fMRI), investigated the human cerebral activation pattern, elicited when subjects viewing a ground plane optic flow pattern actively judged heading. Several successive experiments controlled for visual input, visuospatial attention, and motor response effects. Results indicate that the network specifically involved in heading consists of only two motion sensitive areas: human MT/V5+, including an inferior satellite, and dorsal intraparietal sulcus area (DIPSM/L), predominantly in the right hemisphere, plus a dorsal premotor region bilaterally. These results suggest possible homologies with the dorsal part of the medial superior temporal area and area 7a in the monkey.
Research Interests:
Research Interests:
Research Interests: Neuroscience, Magnetic Resonance Imaging, Visual Cortex, Brain Mapping, Primates, and 18 moreMacaca, Temporal Lobe, Humans, Cerebral Cortex, Form perception, Cues, Orientation, Animals, Functional Imaging, Male, Magnetic Resonance, Parietal Cortex, The, Temporal Cortex, Adult, Parietal Lobe, Species Specificity, and Mr Imaging
Research Interests:
Research Interests: Psychology, Cognitive Science, Magnetic Resonance Imaging, Motion perception, Brain Mapping, and 17 moreBrain, Humans, Human Motion, Female, Animals, Male, Motion processing, Eye Movements, Motion, Wakefulness, Adult, Neuropsychologia, Three Dimensional, Species Specificity, D structure, Neurosciences, and Functional Laterality
Research Interests:
Research Interests: Psychology, Cognitive Science, Magnetic Resonance Imaging, Attention, Motion perception, and 18 moreCognitive Neuroscience, Cognitive, Structure from Motion, Spatial Attention, Temporal Lobe, Humans, Form perception, Female, Male, Motion processing, Task Difficulty, Adult, Parietal Lobe, Three Dimensional, Rotation, Neurosciences, Surface Texture, and Occipital Lobe
Research Interests:
Research Interests:
Research Interests: Psychology, Cognitive Science, Psychophysics, Kinetics, Magnetic Resonance Imaging, and 15 moreMotion perception, Higher Order Thinking, Brain Mapping, Humans, Discrimination Learning, Cerebral Cortex, Male, Contrast sensitivity, European, Spatial Behavior, Single Photon Emission Computed Tomography, Adult, Time Factors, Neurosciences, and Functional Laterality
ABSTRACT This study focuses on the psychometric properties of Young Schema Questionnaire-Long Form (YSQL2, Young in Cognitive therapy for personality disorders: a schema-focused approach. Professional Resource Exchange, Sarasota, 1990) in... more
ABSTRACT This study focuses on the psychometric properties of Young Schema Questionnaire-Long Form (YSQL2, Young in Cognitive therapy for personality disorders: a schema-focused approach. Professional Resource Exchange, Sarasota, 1990) in a large Flemish sample of inpatients with an eating or substance use disorder. Eating disorders (ED) and alcohol/substance use disorders commonly co-occur and have been linked by several theoretical models, making it important to study the psychometric properties of the YSQL2 in these populations. In the present study, a confirmatory factor analysis was used to investigate the latent structure of the YSQL2 in a sample of ED patients (n = 218) and alcohol and substance use disorder (AD) patients (n = 351). Internal consistency, divergent, and convergent validity between early maladaptive schemas (EMS) and personality disorder symptoms were investigated. Results confirm the 16 factor structure of the YSQL2 as well as good internal consistency for all scales. Significant gender differences were observed for some scales within the AD sample, along with different patterns of correlations between age and select scales within the ED and AD groups. Convergent validity was supported by similar elevations on the schema scales and personality disorder symptoms in both subgroups separately. The YSQL2 appears to be a valid instrument to assess EMS among Flemish inpatients with an ED or an alcohol disorder.