Publications by authors named "Kwangsu Cho"
Article Synopsis
- The study focuses on how adolescents often struggle to recognize depressive symptoms and may not seek help despite experiencing them, highlighting the need for early intervention.* -
- Researchers collected various types of digital data, such as keystroke and stylus information, from 927 first-year middle school students as they completed language and math problems to analyze their depressive symptoms.* -
- The findings suggest that certain digital behaviors (like stroke length and tap pressure) can indicate mood and cognitive issues, pointing toward the possibility of using automated data for early screening of depression in students.*
Article Synopsis
- - Awareness and stigma surrounding internet gaming disorder (IGD) hinder early detection, with prevalence varying significantly and recognized as a serious issue that affects young people's academics and mental health.
- - The study aims to identify digital indicators from tablet sensor data to detect IGD early in students, integrating these insights into daily school activities as a mental health screening tool.
- - Analysis revealed that higher IGDS scores correlated with poorer learning outcomes, and five specific digital behaviors were linked to IGD, explaining a notable portion of the variance in IGD scores.
Article Synopsis
- Cytoplasmic chloroplast genomes and nuclear ribosomal DNA are crucial for studying plant diversity and evolution, particularly in rice.
- A new high-throughput method utilizing Illumina sequencing was developed to obtain complete sequences of both cp and nR from 30 rice specimens across nine Oryza species.
- The research revealed insights into rice evolution and domestication, highlighting biases in cp-based classifications, the hybridization of wild rice species, and the identification of perennial traits in certain Australian rice varieties.
Consumers often rely on observable cues that hint at the hidden quality of a product. The aim of this study was to investigate brain activities associated with the country-of-origin (COO) effect and consumer evaluation of a product design. Electroencephalogram recordings were used to observe event-related brain potentials associated with the COO effect and design evaluation.
View Article and Find Full Text PDFSmooth Vibrotactile Flow Generation Using Two Piezoelectric Actuators.
IEEE Trans Haptics
March 2016
This paper proposes a method for generating a smooth directional vibrotactile flow on a thin plate. While actuating two piezoelectric actuators spatially across the plate, temporal sweeping of the input excitation frequency from zero to the first mode of the resonance frequency can smooth the perceived directional vibrotactile flow, as compared to a vibrotactile flow generated by conventional apparent tactile movement and phantom sensation methods. In order to ascertain important factors in the excitation pattern, a user study was conducted for three factors (amplitude (constant versus modulated), frequency (constant versus swept), and ending shape (sharp versus smooth)).
View Article and Find Full Text PDFThe influence of media type on attitude toward mobile advertisements over time.
Cyberpsychol Behav Soc Netw
January 2012
This study explores the relationships between consumers and mobile advertisements on attitude change over time. Two experiments were used to investigate both immediate and delayed effects of different media types on attitudes toward mobile advertisements. Experiment 1 formulated three types of advertisements corresponding to three media types: text, still pictures, and motion pictures.
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