Differential Contributions of Global and Local Object Landmarks in Human Wayfinding Behavior

By factorially manipulating landmark scale (global vs. local) and environmental regularity, this study shows that local landmarks serve as immediate route anchors while global landmarks become critical in irregular, unpredictable environments — resolving a longstanding inconsistency in the navigation literature.

January 2025 · Wen-Jing Lin, Erik Chihhung Chang

The Application of Information Theory in Studying Motor Control

This chapter introduces information-theoretic tools — including Shannon entropy and mutual information — as principled metrics for quantifying the regularity, variability, and computational demands of motor behavior, with applications to motor learning and aging research.

January 2025 · Hsin-Ping Tien, Erik Chihhung Chang

Inequivalent and Uncorrelated Response Priming in Motor Imagery and Execution

Using a response repetition paradigm with EMG monitoring, we demonstrate that motor imagery and motor execution produce inequivalent and — after controlling for subthreshold muscle activity — uncorrelated repetition effects, challenging the dominant functional equivalence hypothesis.

May 2024 · Hsin-Ping Tien, Erik C. Chang

Information-Theoretic Quantification of Dedifferentiation in the Aging of Motor and Executive Functions

Using information-theoretic measures, this study quantifies how neural specificity (differentiation) of motor and executive functions declines with age — shedding light on the mechanisms of cognitive aging.

January 2021 · Erik Chang

Taiwanese Norms for the Harvard Group Scale of Hypnotic Susceptibility, Form A

This study establishes the first normative data for the Harvard Group Scale of Hypnotic Susceptibility, Form A (HGSHS:A) in the Taiwanese Mandarin-speaking population, validating the scale against 15 international reference samples and identifying cross-cultural factors affecting item performance.

April 2019 · Mei-Jing Lin, Erik Chihhung Chang

Relationship Between Mode of Sport Training and General Cognitive Performance

This study compares general cognitive performance across athletes trained in open-skill sports (requiring reactive, unpredictable responses) versus closed-skill sports (stereotyped, self-paced), finding that open-skill training is associated with superior attention switching and executive flexibility.

March 2017 · Erik Chih-Hung Chang, Chien-Heng Chu, Costas I. Karageorghis, Chun-Chih Wang, Jack Han-Chao Tsai, Yung-Shun Wang, Yu-Kai Chang

Effects of Aerobic Training Intensity on Executive Functions in Middle-to-Old Age Adults

Comparing moderate versus vigorous aerobic training, this study examines how exercise intensity differentially benefits executive function components — including working memory, cognitive flexibility, and inhibitory control — in middle-to-old age adults.

June 2016 · Shen, Yau, Erik Chihhung Chang

Neural Mechanisms of Inhibitory Response in a Battlefield Scenario: A Simultaneous fMRI-EEG Study

Using a novel, motivationally engaging battlefield scenario and simultaneous fMRI-EEG, this study identifies the neural circuits supporting successful response inhibition, revealing distinct contributions of prefrontal, parietal, and cingulate regions to inhibitory control under real-world-like conditions.

May 2016 · Li-Wei Ko, Yi-Cheng Shih, Rupesh Kumar Chikara, Ya-Ting Chuang, Erik C. Chang

Bimanual Coordination Learning with Different Augmented Feedback Modalities and Information Types

This study investigates how the modality (visual vs. auditory) and type (knowledge of results vs. knowledge of performance) of augmented feedback affect the acquisition and retention of a bimanual coordination skill, revealing interaction effects between feedback modality and information specificity.

February 2016 · Shiau-Chuen Chiou, Erik Chihhung Chang

Structural Differences in Basal Ganglia of Elite Running Versus Martial Arts Athletes: A Diffusion Tensor Imaging Study

Using diffusion tensor imaging (DTI), we reveal sport-specific structural differences in basal ganglia white matter pathways between elite endurance runners and open-skill martial arts athletes, suggesting that different types of motor expertise shape subcortical brain structure differently.

May 2015 · Yu-Kai Chang, Jack Han-Chao Tsai, Chun-Chih Wang, Erik Chihhung Chang

Dissociable Neural Mechanisms for Perceived Heaviness and Predicted Weight During Lifting: An fMRI Investigation of the Size-Weight Illusion

Using fMRI, we show that the perception of object weight and the prediction of force required for lifting are supported by distinct neural circuits — providing key evidence for separate visuomotor and perceptual streams.

January 2009 · Patrick A. Chouinard, Meaghan Large, Erik Chang, Melvyn A. Goodale

The Intermanual Transfer of Anticipatory Force Control in Precision Grip Lifting Is Not Influenced by the Perception of Weight

When lifting objects with one hand, the brain builds internal models predicting the force required. This study shows these predictive grip force models transfer across hands independently of how heavy the object feels — dissociating motor prediction from perceptual weight estimates.

January 2008 · Erik C. Chang, J. Randall Flanagan, Melvyn A. Goodale

Maintenance of Visual Stability in the Human Posterior Parietal Cortex

Using TMS applied to the posterior parietal cortex, we demonstrate a causal role for this region in visual stability — the ability to perceive a stable world despite the constant displacement of images on the retina during eye movements.

February 2007 · Erik Chang, Tony Ro

Inhibition of Return in Perception and Action

This study systematically examines whether inhibition of return (IOR) — the delayed processing of previously attended locations — affects both perceptual judgments and action responses similarly, addressing whether IOR is a unitary or task-specific phenomenon.

April 2005 · Erik Chang, Tony Ro

Inhibition of Return and the Human Frontal Eye Fields

Using transcranial magnetic stimulation (TMS) over the frontal eye fields, we demonstrate that this oculomotor region plays a causal role in generating inhibition of return — the slowing of attention to previously cued spatial locations.

April 2003 · Tony Ro, Alessandro Farnè, Erik Chang