Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： The Functional Near-Infrared Spectroscopy (fNIRS) is one of the most promising functional neuroimaging tools in recent years due to its high ecological validity, low cost, and less sensitivity to head motions. Experimental paradigms of instructed lies and spontaneous lies have been used to verify the feasibility and accuracy of fNIRS technology in previous lying researches, and provided an opportunity to explore the cognitive mechanisms involved in lying among children, and the neural mechanisms of lying in real interaction scenarios. Future researches should use multimodal methods and indexes to enhance the accuracy of lie detection, and could explore the brain networks and the neural development of lying behavior to enrich research perspectives.
Subjects: Psychology >> Social Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： Mind sports are competitive sports that aim at developing intelligence and involves multiple high-level cognitive processing. Deliberate practice enables the mind sports experts to exhibit steady expertise effects in domain-specific tasks. A review of previous research reveals that perception and memory are not only the basis of high-level cognitive functions, but also the central to the mind sports expert advantage. That is, the extraordinary performance of the mind sports experts is based on their perceptual and memory advantage. In this paper, we summarize the cognitive neural mechanisms through which expert perception and memory are influenced by the experience of mind sports from the perspective of cognitive neuropsychology to reveal the intrinsic processing patterns and neural mechanisms of the expertise effects in mind sports. Long-term training contributed to a stable holistic perceptual advantage in mind sports experts, as reflected by the fact that experts made a greater proportion of fixations between the pieces and completed the perceptual task with fewer fixations. This performance is consistent with the holistic model of image perception, in which the experts automatically process information about the entire game or board with a larger perceptual span, quickly locate task-relevant target areas with prior knowledge, and process abstract pieces relations in parallel. The temporo-parietal junction and fusiform gyri are the neural bases of a holistic perceptual process. Mind sports experts also have a stable memory advantage. Long-term training in mind sports allows experts to store not only a large amount of visual-spatial information in their long-term memory, but also more abstract and generalized knowledge. The Chunking and Template theory argues that experts rely primarily on concrete visuospatial information and therefore have an advantage when processing familiar stimuli. To explain experts' advantage in memorizing random chess stimuli, the SEEK theory suggests that experts have rich and flexible abstract knowledge and therefore have a memory advantage even when processing unfamiliar or stimuli that change presentation. The neural basis for the expert's advantage in accurate, rapid, and flexible memory is the synergistic activity of the medial temporal, frontotemporal, and frontoparietal regions. The existence of stable superior performance of experts in mind sports on tasks within the domain suggests that deliberate practice can improve experts' specific skills, supporting the view that training can promote intelligence. The following shortcomings still exist: 1) most studies have mainly focused on the chess domain, and it is still unclear whether the differences in cognitive demands of different mind sports lead to differences in extrinsic behavior and intrinsic neural basis; 2) existing studies have mainly examined the neural mechanisms underlying mind sports experts' advantage effects through univariate analysis based on voxels. Multi-voxel pattern analysis and representational similarity analysis can be used to explore the intrinsic neural basis more profoundly; 3) The timing of stimulus presentation has not been standardized and the adequacy of timing may lead to a decrease in group differentiation and a mix of other cognitive components. Multimodal studies can be conducted with high temporal resolution EEG and eye-movement recording to explore the dynamic cognitive neural mechanisms in depth. 4) due to a lack of long-term longitudinal study on how novices would become mind sports experts through deliberate practice, it remains incomplete regarding the cognitive performance and the trajectory of neural mechanism changes of mind sports experts. Future research can examine types of mind sports, innovative experimental paradigms, combined with measurement equipment and cognitive characteristics, to explore in depth and detail the neural mechanisms underlying the holistic perceptual advantage and memory advantage of mind sports experts, to provide a theoretical basis for artificial intelligence and skill training.
Subjects: Psychology >> Social Psychology submitted time 2023-03-27 Cooperative journals: 《心理学报》
Abstract： When our visual system processes target signals, it usually receives large amounts of irrelevant information from the target, leading to a reduction in the visibility of the target. A wealth of research has shown that visual search for target letters against a masking background is largely determined by the masker type. Informational maskers, such as either randomly positioned and oriented letters or randomly distributed letter fragments, induce stronger masking effects on recognition of target letters than the energetic maskers do, such as the random-phase masker (same spectral amplitude composition as the letter masker but with the phase spectrum randomized) or the random-pixel masker (the locations of the letter maskers’ pixel amplitudes being randomized). However, the mechanisms under informational masking and those under energetic masking are still unknown. The current study examined both cortical activities and behavioral performances in the visual search task, which is determined by whether one of four letters presented at four symmetrically-located positions differs from the others under three masking conditions (random pixels, letter fragments, and random letters). Both the oxygenated hemoglobin concentration (HbO) responses in the primary visual cortex (V1) and secondary visual cortex (V2) with a functional near infrared spectroscopy (fNIRS) were recorded. Twenty (4 males, 16 females) healthy adults (mean age: 22.5 ± 1.67 years) participated in the experiment. Each masking condition contained 5 blocks, and each block contained 8 trails. There was a resting phase of 20 seconds between the two blocks. Spatial registration methods were applied to localize the cortical regions underneath each channel and to define two regions of interest (ROIs), which are the primary visual cortex (V1) and secondary visual cortex (V2). The behavioral results showed that the performance of recognizing target letters improved when the masker type shifted from random letters to letter fragments and to random pixels, suggesting that the letter masker interfered the most with performance than the letter fragment and random-pixel maskers. The random-pixel masker caused the least masking effect. The fNIRS results showed that both letter masker and letter-fragment masker produced an increase in cortical oxygen level. Many regions of interest (ROIs), particularly the visual cortex (including V1 and V2), were more activated under the letter or the letter-fragment masking condition compared to the random-pixel masking condition. Moreover, the differences in cortical activation between the masking conditions further suggested that the V1 and V2 are the critical brain regions involved in visual letter search and informational masking of letter recognition. To summarize, this study used fNIRS to explore the cortex activation patterns of different types of masking on target recognition. The results showed that information masking had much more interference on visual search and caused greater processing loads in primary and secondary visual cortex, compared with energy masking under the same conditions. Furthermore, the differences between letter fragments masking and letters masking are reflected in the activation mode of V1 and V2 regions.
Subjects: Psychology >> Cognitive Psychology submitted time 2021-12-26
Abstract： "
Peer Review Status:
Awaiting Review
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