Secondary not subordinate: Opsin localization suggests possibility for color sensitivity in salticid secondary eyes
Vision Res. 2024 Feb 29;217:108367. doi: 10.1016/j.visres.2024.108367. Online ahead of print.ABSTRACTThe principal eyes of jumping spiders (Salticidae) integrate a dual-lens system, a tiered retinal matrix with multiple photoreceptor classes and muscular control of retinal movements to form high resolution images, extract color information, and dynamically evaluate visual scenes. While much work has been done to characterize these more complex principal anterior eyes, little work has investigated the three other pairs of simpler secondary eyes: the anterior lateral eye pair and two posterior (lateral and median) pairs of e...
Source: Vision Research - March 1, 2024 Category: Opthalmology Authors: Mireille Steck Sophia J Hanscom Tom Iwanicki Jenny Y Sung David Outomuro Nathan I Morehouse Megan L Porter Source Type: research
Secondary not subordinate: Opsin localization suggests possibility for color sensitivity in salticid secondary eyes
Vision Res. 2024 Feb 29;217:108367. doi: 10.1016/j.visres.2024.108367. Online ahead of print.ABSTRACTThe principal eyes of jumping spiders (Salticidae) integrate a dual-lens system, a tiered retinal matrix with multiple photoreceptor classes and muscular control of retinal movements to form high resolution images, extract color information, and dynamically evaluate visual scenes. While much work has been done to characterize these more complex principal anterior eyes, little work has investigated the three other pairs of simpler secondary eyes: the anterior lateral eye pair and two posterior (lateral and median) pairs of e...
Source: Vision Research - March 1, 2024 Category: Opthalmology Authors: Mireille Steck Sophia J Hanscom Tom Iwanicki Jenny Y Sung David Outomuro Nathan I Morehouse Megan L Porter Source Type: research
Secondary not subordinate: Opsin localization suggests possibility for color sensitivity in salticid secondary eyes
Vision Res. 2024 Feb 29;217:108367. doi: 10.1016/j.visres.2024.108367. Online ahead of print.ABSTRACTThe principal eyes of jumping spiders (Salticidae) integrate a dual-lens system, a tiered retinal matrix with multiple photoreceptor classes and muscular control of retinal movements to form high resolution images, extract color information, and dynamically evaluate visual scenes. While much work has been done to characterize these more complex principal anterior eyes, little work has investigated the three other pairs of simpler secondary eyes: the anterior lateral eye pair and two posterior (lateral and median) pairs of e...
Source: Vision Research - March 1, 2024 Category: Opthalmology Authors: Mireille Steck Sophia J Hanscom Tom Iwanicki Jenny Y Sung David Outomuro Nathan I Morehouse Megan L Porter Source Type: research
Trichotomy revisited: A monolithic theory of attentional control
Vision Res. 2024 Feb 20;217:108366. doi: 10.1016/j.visres.2024.108366. Online ahead of print.ABSTRACTThe control of attention was long held to reflect the influence of two competing mechanisms of assigning priority, one goal-directed and the other stimulus-driven. Learning-dependent influences on the control of attention that could not be attributed to either of those two established mechanisms of control gave rise to the concept of selection history and a corresponding third mechanism of attentional control. The trichotomy framework that ensued has come to dominate theories of attentional control over the past decade, rep...
Source: Vision Research - February 22, 2024 Category: Opthalmology Authors: Brian A Anderson Source Type: research
Trichotomy revisited: A monolithic theory of attentional control
Vision Res. 2024 Feb 20;217:108366. doi: 10.1016/j.visres.2024.108366. Online ahead of print.ABSTRACTThe control of attention was long held to reflect the influence of two competing mechanisms of assigning priority, one goal-directed and the other stimulus-driven. Learning-dependent influences on the control of attention that could not be attributed to either of those two established mechanisms of control gave rise to the concept of selection history and a corresponding third mechanism of attentional control. The trichotomy framework that ensued has come to dominate theories of attentional control over the past decade, rep...
Source: Vision Research - February 22, 2024 Category: Opthalmology Authors: Brian A Anderson Source Type: research
Trichotomy revisited: A monolithic theory of attentional control
Vision Res. 2024 Feb 20;217:108366. doi: 10.1016/j.visres.2024.108366. Online ahead of print.ABSTRACTThe control of attention was long held to reflect the influence of two competing mechanisms of assigning priority, one goal-directed and the other stimulus-driven. Learning-dependent influences on the control of attention that could not be attributed to either of those two established mechanisms of control gave rise to the concept of selection history and a corresponding third mechanism of attentional control. The trichotomy framework that ensued has come to dominate theories of attentional control over the past decade, rep...
Source: Vision Research - February 22, 2024 Category: Opthalmology Authors: Brian A Anderson Source Type: research
Trichotomy revisited: A monolithic theory of attentional control
Vision Res. 2024 Feb 20;217:108366. doi: 10.1016/j.visres.2024.108366. Online ahead of print.ABSTRACTThe control of attention was long held to reflect the influence of two competing mechanisms of assigning priority, one goal-directed and the other stimulus-driven. Learning-dependent influences on the control of attention that could not be attributed to either of those two established mechanisms of control gave rise to the concept of selection history and a corresponding third mechanism of attentional control. The trichotomy framework that ensued has come to dominate theories of attentional control over the past decade, rep...
Source: Vision Research - February 22, 2024 Category: Opthalmology Authors: Brian A Anderson Source Type: research
Trichotomy revisited: A monolithic theory of attentional control
Vision Res. 2024 Feb 20;217:108366. doi: 10.1016/j.visres.2024.108366. Online ahead of print.ABSTRACTThe control of attention was long held to reflect the influence of two competing mechanisms of assigning priority, one goal-directed and the other stimulus-driven. Learning-dependent influences on the control of attention that could not be attributed to either of those two established mechanisms of control gave rise to the concept of selection history and a corresponding third mechanism of attentional control. The trichotomy framework that ensued has come to dominate theories of attentional control over the past decade, rep...
Source: Vision Research - February 22, 2024 Category: Opthalmology Authors: Brian A Anderson Source Type: research
Trichotomy revisited: A monolithic theory of attentional control
Vision Res. 2024 Feb 20;217:108366. doi: 10.1016/j.visres.2024.108366. Online ahead of print.ABSTRACTThe control of attention was long held to reflect the influence of two competing mechanisms of assigning priority, one goal-directed and the other stimulus-driven. Learning-dependent influences on the control of attention that could not be attributed to either of those two established mechanisms of control gave rise to the concept of selection history and a corresponding third mechanism of attentional control. The trichotomy framework that ensued has come to dominate theories of attentional control over the past decade, rep...
Source: Vision Research - February 22, 2024 Category: Opthalmology Authors: Brian A Anderson Source Type: research
Perception of complex Glass patterns through spatial summation across unique frames
In conclusion, our findings support the existence of spatial summation of form signals coming from the unique frames that generate complex GPs. On the other hand, they do not support temporal integration of local form-motion signals based on the pattern update rate.PMID:38377786 | DOI:10.1016/j.visres.2024.108364 (Source: Vision Research)
Source: Vision Research - February 20, 2024 Category: Opthalmology Authors: Marco Roccato Gianluca Campana Michele Vicovaro Rita Donato Andrea Pavan Source Type: research
Perception of complex Glass patterns through spatial summation across unique frames
In conclusion, our findings support the existence of spatial summation of form signals coming from the unique frames that generate complex GPs. On the other hand, they do not support temporal integration of local form-motion signals based on the pattern update rate.PMID:38377786 | DOI:10.1016/j.visres.2024.108364 (Source: Vision Research)
Source: Vision Research - February 20, 2024 Category: Opthalmology Authors: Marco Roccato Gianluca Campana Michele Vicovaro Rita Donato Andrea Pavan Source Type: research
Perception of complex Glass patterns through spatial summation across unique frames
In conclusion, our findings support the existence of spatial summation of form signals coming from the unique frames that generate complex GPs. On the other hand, they do not support temporal integration of local form-motion signals based on the pattern update rate.PMID:38377786 | DOI:10.1016/j.visres.2024.108364 (Source: Vision Research)
Source: Vision Research - February 20, 2024 Category: Opthalmology Authors: Marco Roccato Gianluca Campana Michele Vicovaro Rita Donato Andrea Pavan Source Type: research
Rapid color categorization revealed by frequency-tagging-based EEG
Vision Res. 2024 Feb 17;217:108365. doi: 10.1016/j.visres.2024.108365. Online ahead of print.ABSTRACTThere has been much debate on whether color categories affect how we perceive color. Recent theories have put emphasis on the role of top-down influence on color perception that the original continuous color space in the visual cortex may be transformed into categorical encoding due to top-down modulation. To test the influence of color categories on color perception, we adopted an RSVP paradigm, where color stimuli were presented at a fast speed of 100 ms per stimulus and were forward and backward masked by the preceding a...
Source: Vision Research - February 18, 2024 Category: Opthalmology Authors: Mengdan Sun Xiaoqing Gao Source Type: research
Rapid color categorization revealed by frequency-tagging-based EEG
Vision Res. 2024 Feb 17;217:108365. doi: 10.1016/j.visres.2024.108365. Online ahead of print.ABSTRACTThere has been much debate on whether color categories affect how we perceive color. Recent theories have put emphasis on the role of top-down influence on color perception that the original continuous color space in the visual cortex may be transformed into categorical encoding due to top-down modulation. To test the influence of color categories on color perception, we adopted an RSVP paradigm, where color stimuli were presented at a fast speed of 100 ms per stimulus and were forward and backward masked by the preceding a...
Source: Vision Research - February 18, 2024 Category: Opthalmology Authors: Mengdan Sun Xiaoqing Gao Source Type: research
Motion-induced blindness as a noisy excitable system
Vision Res. 2024 Jan 30;216:108363. doi: 10.1016/j.visres.2024.108363. Online ahead of print.ABSTRACTPerceptual disappearance of a salient target induced by a moving texture mask (MIB: Motion-Induced Blindness) is a striking effect, currently poorly understood. Here, we investigated whether the dynamics of MIB qualify as an excitable system. Excitable systems exhibit fast switches from one state to another (e.g., visible/invisible) induced by an above-threshold perturbation and stimulus-independent dynamics, followed by a refractory period. In the experiments, disappearance was induced by masks consisting of slowly rotatin...
Source: Vision Research - January 31, 2024 Category: Opthalmology Authors: Mikhail Katkov Alexander Cooperman Noya Meital-Kfir Dov Sagi Source Type: research
