Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： A number of researches suggest that dorso-dorsal stream represents grasping action and ventro- dorsal stream represents using action. They form structure-based action representation and function-based action representation respectively, which play a role in manipulable object representation and recognition. Difference exists between the two kinds of action representation in neural substrates, activation condition, time course, and their relationships with long-term memory. Researches on the two kinds of action representation not only demonstrate the importance of action information for manipulable object recognition, but also provide implication for further researches on how manipulable objects are represented in human brain.
Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： “Sense of agency” refers to the sense of controlling one’s actions and the course of events in the outside world. It is based on the match between the expected action and the real sensory feedback. The first part of this article introduces a method for implicit measurement of sense of agency. The second part deals with the factors that influence the sense of agency from the aspects of intentionality and sensory feedback. Part three provides the conclusion. With an emphasis on the functions of the prefrontal and parietal lobes, this article provides evidence to explain the mechanism of sense of agency through the theoretical model and cognitive neuroscience.
Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： The two-dimension tactile image is the main approach of translating visual information into haptic information. It plays an important role in helping visually impaired people perceive the external world. The recognition of haptic two-dimension image is considered to be based on the “visual translation” process where the haptic input is translated into the visual image. This process is influenced by the graphic geometric feature, perspective, visual experience, capability of visual representation, the process of tactile exploration, training and age. Exploration of the cognitive neural mechanism of two-dimension images haptic recognition is significant for improving the design and usability of two-dimension tactile images.
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.
Subjects: Psychology >> Social Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： Sense of agency (SOA) refers to the feeling of controlling one's own actions and events in the external world through voluntary actions. Over the past two decades, SOA has increasingly attracted attention from researchers, and its cognitive neural mechanism is still a cutting-edge scientific problem in this field. There are two ways to measure SOA: explicit measurement (i.e., the explicit judgements of agency reported by individuals) and implicit measurement (i.e., sensory perception difference). Both the temporal binding effect and the sensory attenuation effect can be used as implicit measures for SOA. Intention of action and sensory feedback are two core components constituting the SOA. Intention of action is a conscious experience of determining or planning to initiate an action. Extinction and termination of intention can prospectively affect SOA. The valence of action outcome, the causal relationship between an action and its outcome, and the characteristics of the outcome may retrospectively affect the sense of agency. According to the Comparator Model, a copy of the action command contained in the subjective intention predicts the outcome before action. When comparing the predicted sensory outcome with the actual feedback of the action, the prediction error is zero, generating SOA. Evidence from cognitive neuroscience suggests that intention may be closely related to the activities in the supplementary and pre-supplementary motor areas, and the action outcome may be related to the activities of the posterior parietal cortex. This project will focus on the neural substrates underlying SOA, and explore the prospective way of intention and the retrospective way of outcome exerting on SOA by manipulating different attributes of two core components (i.e., subjective intention and action outcome). The magnetoencephalography technology, which is of high temporal and spatial resolution, is employed to extract the time-space characteristics of SOA at the fronto-parietal network in both the time windows of action-outcome and after-outcome. Elucidating the neural mechanism of SOA will contribute to our understanding of the generation and aftereffects of human actions, thus providing implications for demarcating behavioral responsibilities in moral and legal settings, and for diagnosing related mental diseases.
Subjects: Psychology >> Social Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： Two-dimensional (2D) tangible image is an important alternative way for visually impaired people to obtain image information. Most existing tactile 2D images are tangible line drawings directly transformed from visual 2D images. The expression of spatial information in the visual 2D images usually follows principles of perspective and viewpoint transforming three-dimensional (3D) space into 2D planar. The mapping from 2D image to 3D space in visual system is learned through long-time perceptual learning. However, it still needs further exploration about cognitive mechanisms of 2D-to-3D spatial information transformation established by haptic system in haptic recognition of 2D images. The visual features of 2D images, including perspective, viewpoint, occlusion, texture gradient and hollow-out, affect the 2D-to-3D spatial information transformation in haptic recognition of 2D images mainly. These visual factors usually interfere with the recognition of 2D tactile images which are directly transformed from 2D visual images. Therefore, visual factors, such as perspective and viewpoint, cannot be directly transferred to tactile 2D images. Based on the findings of existing researches, a dual-imagery processing model is proposed to explain the mechanisms of 2D-to-3D spatial information transformation when touching 2D tangible images, and the cognitive mechanism concerning about how visual factors modulate the 2D-to-3D spatial information transformation. The following are key points of this model: Firstly, the cognitive process of haptic recognition of 2D images consists of three modules: haptic perception, working memory and long-term memory. (1) The "haptic perception" module receives tactile and proprioceptive information, obtains the texture, shape and size information of the object, then forms the spatial relationship information of each part of the object, including perspective and viewpoint, by further sensory integration; (2) The "working memory" contains two sub-modules: Object-imagery-based sub-module forms the object imagery of the 2D images using the object information (texture, shape and size) offered by the "haptic perception", In contrast, spatial-imagery-based sub-module forms the spatial imagery of 2D images using the space information (spatial relationship, perspective, and viewpoint) offered by the "haptic perception" module; (3) The "long-term memory" module stores the individual's prior knowledge, experience, and representation of the objects and interacts with other two modules Secondly, haptic recognition of 2D images depends on the coordination of object imagery and spatial imagery. Successful haptic recognition of 2D images requires the effective integration of object imagery and spatial imagery. Otherwise, the 2D images cannot be recognized by touching. The dual-imagery processing model could contribute to the further exploration of haptic recognition and its cognitive mechanism, and provide theoretical guidance for the design of 2D tangible images.
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