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Research > Research Group

Research Focus Areas

  1. Neural Mechanism of Visual Selection and Eye Movement 
  2. Visual Short-Term Memory
  3. Neural Mechanisms of Cognitive Control
  4. Development of Attention and Cognitive Control
  5. Cognitive Neuroscience and Crime Sciences 
  6. Sport and Human Cognitive Performance
  7. Human Brain Stimulation Techniques and their Applications

Visual Short-Term Memory

Visual attention and short-term memory have a high relevance to fluid intelligence. Recent studies have shown that the capacity of short-term memory may be regulated by attention. Therefore, we apply transcranial direct-current stimulation (tDCS) to posterior parietal cortex, one of the brain regions responsible to spatial attention, and observe the discrepancies in cognitive behavior performance before and after the stimulation. We measure and record the brain waves of test subjects during the visual short-term memory experiments and found that tDCS was not only able to improve the performance in visual short-term memory but also received positive feedbacks on N2 posterior contralateral (N2pc), the attentional component of event-related potential.
Selected Papers
  1. 5. Yi-Jen Wu, Philip Tseng, Chi-Fu Chang, Ming-Chyi Pai, Kuei-Sen Hsu, Chou-Ching Lin, Chi-Hung Juan (2014, Aug). Modulating the Interference Effect on Spatial Working Memory by Applying Transcranial Direct Current Stimulation over the Right Dorsolateral Prefrontal Cortex. Brain and Cognition, 91: 87–94. (SCI). MOST 103-2410-H-008-023-MY3.
  2. Tzu-Yu Hsu, Philip Tseng, Wei-Kuang Liang, Shih-Kuen Cheng, and Chi-Hung Juan (2014, Apr). Transcranial direct current stimulation over right posterior parietal cortex changes prestimulus alpha oscillation in visual short-term memory task . Neuroimage, 98:306–313. (SCI, 2/14 (Neuroimaging), 26/251 (Neurosciences) & 3/120(Radiology, Nuclear Medicine & Medical imaging)).MOST 101-2628-H-008-001-MY4.
  3. Tseng, P., Hsu, TY, Chang, CF, Tzeng, OJL, Hung, DL, Muggleton, NG, Walsh, V, Liang, WK, Cheng, SK & Juan, CH*. (Aug, 2012) Unleashing potential: tDCS over the right posterior parietal cortex improves change detection in low-performing individuals. Journal of Neuroscience 32(31):10554 –10561 PDF
  4. Tseng, P., Hsu, TY., Muggleton, NG., Tzeng, OJL., Hung, DL. & Juan, C.H*. (Mar, 2010) Posterior Parietal Cortex Mediates Encoding and Maintenance Processes in Change Blindness. Neuropsychologia, 48(4):1063-70. PDF
(* denotes the corresponding author)
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