Yuanyuan Lyu

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BACKGROUND AND PURPOSE Low serum levels of vitamin D have been associated with depression in non-stroke subjects. Our aim was to examine the possible association between serum vitamin D levels and the development of post-stroke depression (PSD). METHODS In total, 189 patients with acute ischaemic stroke were consecutively recruited. Serum levels of(More)
Subjects may voluntarily implement an internal or external strategy during mental rotation (MR) task. However, few studies have reported the spatiotemporal differences of brain activation between the two MR strategies. This study aims to compare the two strategies from the perspective of behavioral performance and spatiotemporal brain activations in each(More)
A potential contributor to impaired motor imagery in amputees is an alteration of the body schema as a result of the presence of a phantom limb. However, the nature of the relationship between motor imagery and phantom experiences remains unknown. In this study, the influence of phantom limb perception on motor imagery was investigated using a hand mental(More)
Depressed patients have a demonstrated cognitive bias in emotional information processing. However, it is unknown how early perceptual processing is modulated by emotional stimuli in depression. To examine this question, we studied 22 depressed patients and 22 healthy controls performing a cued target-response task with emotional facial expression as the(More)
Amputation of the dominant hand forces patients to use their non-dominant hand exclusively. Whether this chronic forced use of the non-dominant hand would affect the handedness preference remains an open question. In this study, the handedness preference in amputees was evaluated using a hand laterality judgment task by comparing recognition speeds of their(More)
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