LANGUAGE NOTE | Document text in English; abstract also in Chinese.The purpose of this study was to provide normative information regarding gross motor skills performance of Hong Kong Chinese children. The Test of Gross Motor Development-2 (TGMD-2; Ulrich, 2000) was administered to 1251 participants (N = 1251). After preliminary data screening, a total of 1228 cases (N = 1228) were used for further analysis. Mean scores of locomotor subtest, object control subtest and the total scale of the TGMD-2 indicated that the mastery level of gross motor skills tended to follow an age trend. Norm-referenced values of locomotor subtest, object control subtest and total scale of the TGMD-2, based on percentiles, were developed to provide a database for subsequent evaluation of children's gross motor skills performance.本研究之目的為探討香港兒童的大肌肉運動能力表現，並為有關動作技能提供常模數據。是次研究選用由Ulrich (2000)設計的「大肌肉動作發展測驗-二」(Test of Gross Motor Development-2; TGMD-2)來評估1251名香港兒童的大肌肉運動能力表現，其中1228名參加者的測試成績被用作進一步數據分析。結果顯示兒童的大肌肉運動能力表現隨著年齡而提高；本研究更按參加者的年齡及性別計算「移動性基本動作技能」、「操作性基本動作技能」及「整體大肌肉動作發展」的百分位數，這些數據有助體育工作者了解香港兒童的大肌肉運動能力之發展狀況。

LANGUAGE NOTE | Document text in English; abstract also in Chinese.The purpose of this study was to determine the relationship between the 5-minute run test and the incremental treadmill run test in assessing aerobic capacity. Twenty subjects participated in this study. The maximum oxygen uptake was estimated by the 5-minute run test and directly measured by the incremental treadmill run test. Correlations were computed by the SPSS Pearson procedures. Linear regression analysis was utilized to predict the 5-minute run test scores based upon the incremental treadmill run test results in determining maximum oxygen uptake. Significant relationship was found between two tests in assessing maximum oxygen uptake. Simple linear regression showed that running velocity in 5-minute run was a significant predictor for maximum oxygen uptake measured in the incremental treadmill run test. To conclude, the 5-minute run test was valuable to predict maximum oxygen uptake.本文旨在探討兩種評估有氧能力的測試：「五分鐘跑測試」和「遞增負荷跑台測試」之關係。是次研究共有二十位受試者參與，在實驗室進行遞增負荷跑台運動測量其標準的最大攝氧量，用「五分鐘跑測試」來推測和評估其最大攝氧量，所得的資料以相關和直線回歸法分析，從而探求「五分鐘跑測試」和「遞增負荷跑台測試」之關係。研究結果顯示兩種評估有氧能力的測試有密切的關係；此外，研究員利用五分鐘平均跑速推算出最大攝氧量的回歸方程。

Stimuli in reality rarely co-occur with primary reward or punishment to allow direct associative learning of value. Instead, value is thought to be inferred through complex higher-order associations. Rodent research has demonstrated that the formation and maintenance of first-order and higher-order associations are supported by distinct neural substrates. In this study, we explored whether this pattern of findings held true for humans. Participants underwent first-order and subsequent higher-order conditioning using an aversive burst of white noise or neutral tone as the unconditioned stimuli. Four distinct tones, initially neutral, served as first-order and higher-order conditioned stimuli. Autonomic and neural responses were indexed by pupillometry and evoked response potentials (ERPs) respectively. Conditioned aversive values of first-order and higher-order stimuli led to increased autonomic responses, as indexed by pupil dilation. Distinct temporo-spatial auditory evoked response potentials were elicited by first-order and high-order conditioned stimuli. Conditioned first-order responses peaked around 260 ms and source estimation suggested a primary medial prefrontal and amygdala source. Conversely, conditioned higher-order responses peaked around 120 ms with an estimated source in the medial temporal lobe. Interestingly, pupillometry responses to first-order conditioned stimuli were diminished after higher order training, possibly signifying concomitant incidental extinction, while responses to higher-order stimuli remained. This suggests that once formed, higher order associations are at least partially independent of first order conditioned representations. This experiment demonstrates that first-order and higher-order conditioned associations have distinct neural signatures, and like rodents, the medial temporal lobe may be specifically involved with higher-order conditioning.