Results 11 to 20 of about 569,815 (265)

The Population Spatial Frequency Toolbox. [PDF]

J Open Res Softw
A MATLAB package for characterizing the SF tuning of neural populations from functional magnetic resonance imaging data.
Ramirez LD, Wang F, Wiecek E, Vinke LN, Ling S.   +4 more
europepmc   +3 more sources

Spatial frequency adaptation modulates population receptive field sizes [PDF]

eLife
The spatial tuning of neuronal populations in the early visual cortical regions is related to the spatial frequency (SF) selectivity of neurons. However, there has been no direct investigation into how this relationship is reflected in population ...
Ecem Altan, Catherine A Morgan, Steven C Dakin, D Samuel Schwarzkopf   +3 more
doaj   +2 more sources

The spatial frequency representation predicts category coding in the inferior temporal cortex [PDF]

eLife
Understanding the neural representation of spatial frequency (SF) in the primate cortex is vital for unraveling visual processing in object recognition.
Ramin Toosi, Behnam Karami, Roxana Koushki, Farideh Shakerian, Jalaledin Noroozi, Ehsan Rezayat, Abdol-Hossein Vahabie, Mohammad Ali Akhaee, Mohammad-Reza A Dehaqani   +8 more
doaj   +2 more sources

Concept of an In-Plane Displacement Sensor Based on Grating Interferometry with a Stepwise Change of Sensitivity

Sensors, 2021
Grating Interferometry, known in the relevant literature as the High Sensitivity Moiré Interferometry, is a method for in-plane displacement and strain measurement.
Leszek Sałbut, Sergiusz Łuczak
doaj   +1 more source

Visibility Domain Direction-of-Arrival Optimization for Arbitrary 2-D Arrays

IEEE Access, 2022
A visibility-modelling based method is introduced to determine the elevation and azimuth angles for a signal received at a quasi-randomly arranged (2-D) array.
Nicholas Bruce, Jeff Stacey, Peter F. Driessen   +2 more
doaj   +1 more source

Literacy acquisition facilitates inversion effects for faces with full-, low-, and high-spatial frequency: evidence from illiterate and literate adults

Frontiers in Psychology, 2023
Previous studies have found that literacy acquisition modulates configural face processing (i.e., holistic and second-order configural processing). However, it remains unclear how literacy acquisition impacts the configural processing indexed by the ...
Qi Yang, Qi Yang, Lina Zhang, Changming Chen, Xiaohua Cao, Xiaohua Cao, Xiaohua Cao   +6 more
doaj   +1 more source

Low-Spatial-Frequency Channels and the Spatial Frequency-Doubling Illusion [PDF]

Investigative Opthalmology & Visual Science, 2009
This study examined the number and nature of spatiotemporal channels in the region where the frequency-doubling (FD) illusion would be expected to occur at eight locations spanning the central 30 degrees of the visual field.The probability of seeing the FD illusion was examined in 17 subjects.
Rosli, Yanti, Petratchkov, Suzanne, Maddess, Ted   +2 more
openaire   +3 more sources

Lower Internal Additive Noise and Better Perceptual Template Characterize Binocular Contrast Sensitivity Summation

Frontiers in Psychology, 2021
Binocular summation is generally defined as the superiority of binocular over monocular performance. Here, we investigated how external noise modulates the effect of binocular summation on the contrast sensitivity function (CSF) and clarified the ...
Pan Zhang, Hanlin Wang, Weicong Ren, Qing Lu, Chenxi Li, Ge Chen, Shilei Zhang, Jiayu Tao, Ying Li, Di Wu, Zeng Wang   +10 more
doaj   +1 more source

The Impact of Spatial Frequency on the Perception of Crowd Emotion: An fMRI Study

Brain Sciences, 2023
Recognizing the emotions of faces in a crowd is crucial for understanding overall behavior and intention as well as for smooth and friendly social interactions.
Dongfang Zhao, Xiangnan Shen, Shuaixia Li, Weiqi He   +3 more
doaj   +1 more source

Impaired Adaptation and Laminar Processing of the Oddball Paradigm in the Primary Visual Cortex of Fmr1 KO Mouse

Frontiers in Cellular Neuroscience, 2021
Both adaptation and novelty detection are an integral part of sensory processing. Recent animal oddball studies have advanced our understanding of circuitry underlying contextual processing in early sensory areas.
Alexandr Pak, Samuel T. Kissinger, Alexander A. Chubykin   +2 more
doaj   +1 more source