Published: Jan. 1, 2023
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Language: Английский
Frontiers in Neuroscience, Journal Year: 2025, Volume and Issue: 19
Published: Feb. 7, 2025
Scene-selective regions were shown to be significantly affected by spatial frequencies (SF) and have different sensitivities low (LSF) high (HSF). However, previous studies mainly focused on the neural activations or patterns in a single SF band. To investigate extent which information of is used scene category representations, we not only decoded categories each SF, but also LSF HSF decode non-filtered (NF) scenes based fMRI data using multivoxel pattern analysis (MVPA). As luminance contrast was follow statistical regularities along with performed decoding analyses separately two conditions where unmodified equalized. The results showed distinct preferences conditions, showing that has significant role processing. In addition, above within natural indoor scenes, respectively. scene-selective more efficient distinguishing LSF, preferentially recognition scenes. On other hand, humans This maybe caused aspects conveyed HSF, as well strategies perception recognition.
Language: Английский
Citations
0
Journal of Vision, Journal Year: 2024, Volume and Issue: 24(4), P. 16 - 16
Published: April 17, 2024
Saccadic choice tasks use eye movements as a response method, typically in task where observers are asked to saccade quickly possible an image of prespecified target category. Using this approach, face-selective saccades have been observed within 100 ms poststimulus. When taking into account oculomotor processing, suggests that faces can be detected little 70 80 ms. It has therefore suggested face detection must occur during the initial feedforward sweep, since latency leaves time for feedback processing. In current experiment, we tested hypothesis using backward masking—a technique shown primarily disrupt processing while leaving activation relatively intact. Based on minimum saccadic reaction time, found benefited from ultra-fast, accurate 110 160 and these obtainable even under extreme masking conditions limit perceptual awareness. However, did significantly increase median SRT faces. manual responses, remarkable accuracy houses, when participants indicated having no visual experience test images. These results provide evidence view bias is initiated by coarse information used categorize sweep but that, most cases, additional required reach threshold initiation.
Language: Английский
Citations
1
Current Research in Neurobiology, Journal Year: 2024, Volume and Issue: 8, P. 100143 - 100143
Published: Nov. 23, 2024
Language: Английский
Citations
1
Visual Cognition, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 24
Published: Oct. 16, 2024
This study investigates the neural processing of other-race and other-species faces, using spatial frequencies (SFs) to probe into early visual mechanisms. We conducted a basic classification task reveal fundamental aspects facial without complexity higher-order recognition tasks. approach utilized SFs set at low (LSF, 0.53 cycles per degree [cpd]), broadband (BB), high (HSF, 2.1 cpd) examine their impact on both P100 N170 components event-related potentials. Our findings revealed significant latency difference in component under HSF conditions, indicating race-specific efficiency fine details between Asian Caucasian faces. Furthermore, amplitudes were consistently larger for human than monkey with this more pronounced LSF BB conditions. finding indicates that effect is holistic (LSF conditions) rather fine-detail processing.
Language: Английский
Citations
0
Published: Jan. 1, 2023
Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI
Language: Английский
Citations
0