Janet H. Hsiao
University of Hong Kong
Stimulus (physiology)OrthographyWord recognitionEye movementArtificial intelligencePsychologyFace perceptionCognitionCognitive psychologyHidden Markov modelPerceptionPronunciationCharacter (mathematics)Chinese charactersSpeech recognitionFacial recognition systemComputer scienceLinguisticsCommunicationReading (process)Eye trackingLateralization of brain function
155Publications
18H-index
1,336Citations
Publications 145
Newest
#1Janet H. Hsiao (HKU: University of Hong Kong)H-Index: 18
#2Antoni B. Chan (CityU: City University of Hong Kong)H-Index: 40
Last. Li Jingling (China Medical University (Taiwan))H-Index: 8
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Recent research has reported that, while both orientation contrast and collinearity increase target salience in visual search, a combination of the two counterintuitively masks a local target. Through eye-tracking and eye-movement analysis with hidden Markov models (EMHMM), here we showed that this collinear masking effect was associated with reduced eye-fixation consistency (as measured in entropy) at the central fixation cross prior to the search display presentation. As a decreased precision ...
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#1Janet H. Hsiao (HKU: University of Hong Kong)H-Index: 18
#2Jeehye An (HKU: University of Hong Kong)H-Index: 4
Last. Antoni B. Chan (CityU: City University of Hong Kong)H-Index: 40
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Abstract Recent research has suggested the importance of part-based information in face recognition in addition to global, whole-face information. Nevertheless, face drawing experience was reported to enhance selective attention to the eyes but did not improve face recognition performance, leading to speculations about limited plasticity in adult face recognition. Here we examined the mechanism underlying the limited advantage of face drawing experience in face recognition through the Eye Moveme...
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#1Janet H. Hsiao (HKU: University of Hong Kong)H-Index: 18
#2Hui Lan (CityU: City University of Hong Kong)H-Index: 1
Last. Antoni B. Chan (CityU: City University of Hong Kong)H-Index: 40
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The eye movement analysis with hidden Markov models (EMHMM) method provides quantitative measures of individual differences in eye-movement pattern. However, it is limited to tasks where stimuli have the same feature layout (e.g., faces). Here we proposed to combine EMHMM with the data mining technique co-clustering to discover participant groups with consistent eye-movement patterns across stimuli for tasks involving stimuli with different feature layouts. Through applying this method to eye mo...
1 CitationsSource
#1Jeehye An (HKU: University of Hong Kong)H-Index: 4
#2Janet H. Hsiao (HKU: University of Hong Kong)H-Index: 18
In face recognition, looking at the eyes has been associated with engagement of local attention, as well as better recognition performance. As recent research has suggested negative mood facilitates local attention while positive mood facilitates global attention, negative mood changes may lead to more eyes-focused eye movement patterns and consequently enhance recognition performance. Here we test this hypothesis using mood induction. Through eye movement analysis with hidden Markov models, we ...
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#1Rui Sun (HKU: University of Hong Kong)
#2Cynthia Y. H. Chan (HKU: University of Hong Kong)H-Index: 3
Last. Akaysha C. Tang (HKU: University of Hong Kong)
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Neurophysiological investigation of neural processes are hindered by the presence of large artifacts associated with eye movement. Although blind source separation (BSS)-based hybrid algorithms are useful for separating, identifying, and removing these artifacts from EEG, it remains unexamined to what extent neural signals can remain mixed with these artifact components, potentially resulting in unintended removal of critical neural signals. Here, we present a novel validation approach to quanti...
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#1Sherry Kit Wa Chan (HKU: University of Hong Kong)H-Index: 22
#2Tianyin Liu (HKU: University of Hong Kong)H-Index: 5
Last. Eric Y.H. Chen (HKU: University of Hong Kong)H-Index: 63
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Abstract Self-referential gaze perception (SRGP)—the perception that others' gaze is towards oneself—is a core experience in patients with schizophrenia, and may be related to common delusional themes such as delusions of reference. Studies exploring SRGP bias in schizophrenia are limited and results have been inconsistent, particularly regarding its relationship with symptomatology and cognition. Seventy-five patients with schizophrenia-spectrum disorders (25 with high level of reference delusi...
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#1Becky P.Y. Loo (HKU: University of Hong Kong)H-Index: 30
#2Feiyang Zhang (HKU: University of Hong Kong)
Last. Hui Lan (CityU: City University of Hong Kong)H-Index: 1
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With the emergence of the Internet of Things (IoT), there has been a proliferation of urban studies using big data. Yet, another type of urban research innovations that involve interdisciplinary thinking and methods remains underdeveloped. This paper represents an attempt to adopt a Hidden Markov Model (HMM) toolbox developed in Computer Science for the analysis of eye movement patterns in Psychology to answer urban mobility questions in Geography. The main idea is that both people’s eye movemen...
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We propose a ParametRIc MAnifold Learning (PRIMAL) algorithm for Gaussian Mixtures Models (GMM), assuming that GMMs lie on or near to a manifold of probability distributions that is generated from a low-dimensional hierarchical latent space through parametric mappings. Inspired by Principal Component Analysis (PCA), the generative processes for priors, means and covariance matrices are modeled by their respective latent space and parametric mapping. Then, the dependencies between latent spaces a...
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#1R. Sun (HKU: University of Hong Kong)
Last. A. Tang
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Ocular artifact in EEG has long been viewed as a problem for interpreting EEG data in basic and applied research. The removal of such artifacts has been an on-going effort over many decades. We have recently introduced a hybrid method combining second-order blind identification (SOBI) with DANS, a novel automatic identification method, to extract components containing specifically signals associated with horizontal and vertical saccadic eye movements (H and V Comps) and found that these componen...
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#1Frederick H. F. Chan (HKU: University of Hong Kong)H-Index: 1
#2Todd Jackson (SWU: Southwest University)H-Index: 37
Last. Tom J. Barry ('KCL': King's College London)H-Index: 12
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BACKGROUND Few studies examining the effect of pain-related threat on eye movements have incorporated a measure of interpretation bias. However, theories suggest that interpretation biases also play an important role in the anticipation of harm in situations where pain could be imminent. The current study investigates the association between interpretation biases and pain-related threat expectancies and their associations with eye movements to pain-related imagery. METHODS Healthy adults' (N = 9...
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