• 对威胁刺激的碰撞时间估计

    Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》

    Abstract: Estimating the time-to-collision (TTC) of approaching objects is crucial for organism survival. Researchers have proposed the constructivist approaches, the ecological optics theory and the tau hypothesis to explain how humans estimate TTC and which factors may affect the estimation. Recently, a few studies examined how the emotional content of stimuli impacts TTC estimation, by comparing TTC judgements between threatening and nonthreatening stimuli. Their findings suggest that natural threatening stimuli (e.g., images of snakes) lead to underestimation of TTC compared to natural nonthreatening stimuli (e.g., images of rabbits). However, other findings suggest that TTC underestimation of social threatening stimuli (e.g. pictures of angry faces) is smaller or absent. Underestimated TTC of threatening stimuli may be due to 1) a specific response to threatening stimuli, 2) high emotional arousal of threatening stimuli, and 3) a perceptual bias causing threatening stimuli to appear closer and move faster than typical. We suggest that future studies should (1) further investigate the reasons why TTC underestimation of social threatening stimuli is smaller or absent, (2) explore the autonomic physiological response patterns and neural correlates of TTC estimation of threatening stimuli, (3) examine TTC estimation of threatening stimuli in virtual reality (VR) environments, and (4) experimentally test the effects of individual differences (e.g., gender and personality traits) on TTC estimation.

  • Estimating the time-to-collision with a threatening object

    Subjects: Psychology >> Cognitive Psychology submitted time 2020-06-09

    Abstract: Estimating the time-to-collision (TTC) of approaching objects is crucial for organism survival. Researchers have proposed the constructivist approaches, the ecological optics theory and the tau hypothesis to explain how humans estimate TTC and which factors may affect the estimation. Recently, a few studies examined how the emotional content of stimuli impacts TTC estimation, by comparing TTC judgements between threatening and nonthreatening stimuli. Their findings suggest that natural threatening stimuli (e.g., images of snakes) lead to underestimation of TTC compared to natural nonthreatening stimuli (e.g., images of rabbits). However, other findings suggest that TTC underestimation of social threatening stimuli (e.g. pictures of angry faces) is smaller or absent. Underestimated TTC of threatening stimuli may be due to 1) a specific response to threatening stimuli, 2) high emotional arousal of threatening stimuli, and 3) a perceptual bias causing threatening stimuli to appear closer and move faster than typical. We suggest that future studies should (1) further investigate the reasons why TTC underestimation of social threatening stimuli is smaller or absent, (2) explore the autonomic physiological response patterns and neural correlates of TTC estimation of threatening stimuli, (3) examine TTC estimation of threatening stimuli in virtual reality (VR) environments, and (4) experimentally test the effects of individual differences (e.g., gender and personality traits) on TTC estimation. "

  • Research on the Characteristics of Emotional Expression of

    Subjects: Psychology >> Applied Psychology submitted time 2019-01-21

    Abstract: [Objective] Explore the characteristics of emotional expression of "empty nest youth" and "non-empty nest youth" using Weibo data. [Methods] This study selected the "empty nest youth" group and the "non-empty nest youth" group from 1 million active users which are based on the activity status of Weibo users, and compared the differences in emotional expression between the two groups of users in the Weibo. [Results] From the results of independent sample t-test and two-way analysis of variance, it can be seen that the emotional expressions of "empty nest youth" group and "non-empty nest youth" are significantly different. According to regional and gender division, it can be found that there are also differences in emotional expression. [Limitations] The word frequency analysis is not completely equivalent to the emotion measured by the psychometric scale. Although the word frequency analysis based on the Weibo data provides an efficient analysis method, it cannot completely replace the strict psychological measurement. [Conclusions] The "empty nest" state affects emotional expression; "empty nest youth" tends to express inner emotions. " "