Lujia Jian & Dorita H. F. Chang from the University of Hong Kong describe hemifield‑dependent remapping of sensory, sighting, and acuity eye dominance.
doi.org/10.1167/iovs.67.12.66
doi.org/10.1167/iovs.67.12.66
October 27, 2026 at 1:56 PM
Lujia Jian & Dorita H. F. Chang from the University of Hong Kong describe hemifield‑dependent remapping of sensory, sighting, and acuity eye dominance.
doi.org/10.1167/iovs.67.12.66
doi.org/10.1167/iovs.67.12.66
Those specific rotational directions are chosen is because that ends up putting enemies on your left. The right hemisphere of the brain has an advantage over the left for threat detection and finds it faster + feels it stronger; and the right hemisphere handles the left hemifield of vision.
October 3, 2026 at 8:47 PM
Those specific rotational directions are chosen is because that ends up putting enemies on your left. The right hemisphere of the brain has an advantage over the left for threat detection and finds it faster + feels it stronger; and the right hemisphere handles the left hemifield of vision.
6/n We tested whether we could observe this shift in human behavior in a multi-item task. Indeed, memories were more distracted by items in the same hemifield at high loads, but not at low loads, consistent with a flexible storage strategy that adapts to changing cognitive demands.
August 24, 2026 at 12:51 PM
6/n We tested whether we could observe this shift in human behavior in a multi-item task. Indeed, memories were more distracted by items in the same hemifield at high loads, but not at low loads, consistent with a flexible storage strategy that adapts to changing cognitive demands.
#eNeuro | Hemifield-Specific Motion Extrapolation Reveals Limits of Interhemispheric Integration
https://doi.org/10.1523/ENEURO.0004-26.2026
https://doi.org/10.1523/ENEURO.0004-26.2026
Hemifield-Specific Motion Extrapolation Reveals Limits of Interhemispheric Integration
The accurate perception of moving objects is a fundamental challenge for the visual system, which must compensate for neural processing delays. Motion extrapolation is a proposed mechanism whereby the brain predicts an object's future position. We investigated how an object's motion history shapes its perceived position using the flash-jump illusion in humans of either sex, in which a brief color change in a moving bar is mislocalized as further along the direction of motion. Across two experiments, we found that longer preceding motion sequences improved localization accuracy, consistent with motion adaptation. This effect occurred regardless of whether motion continued after the flash. Notably, mislocalization transiently reappeared as the object crossed the vertical midline, suggesting that motion adaptation and motion extrapolation operate independently between within each hemifield. Manipulating the length of the sequence in each hemifield in Experiment 2 confirmed that this adaptation is spatially confined to each hemifield, with limited interhemispheric transfer. The results align with a Bayesian framework in which the brain integrates signals from both hemispheres, with midline crossings triggering a shift from adapted to unadapted neural populations. We identify motion extrapolation, supported by hemifield-specific adaptation in area MT and integration in area MST, as the putative mechanism behind these midline discontinuities. This work reframes smooth pursuit not just as a tracking behavior but as a solution to overcome limitations of interhemispheric motion processing.
doi.org
August 22, 2026 at 3:13 AM
#eNeuro | Hemifield-Specific Motion Extrapolation Reveals Limits of Interhemispheric Integration
https://doi.org/10.1523/ENEURO.0004-26.2026
https://doi.org/10.1523/ENEURO.0004-26.2026
(2023) Ameliorating #hemianopia with #multisensory training www.jneurosci.org/content/earl... "The patients were repeatedly exposed to congruent visual-auditory stimuli within their blinded #hemifield during two-hour sessions over several weeks. The results were dramatic"; use The vOICe for this?
August 16, 2026 at 9:25 AM
(2023) Ameliorating #hemianopia with #multisensory training www.jneurosci.org/content/earl... "The patients were repeatedly exposed to congruent visual-auditory stimuli within their blinded #hemifield during two-hour sessions over several weeks. The results were dramatic"; use The vOICe for this?
Our research challenges previous explanations of hemispatial neglect and enhances our understanding of how the brain manages spatial attention and mental effort. Additionally, we identify regions that might be the source of hemifield-specific capacity limits in attentional tracking.
May 30, 2025 at 3:38 PM
Our research challenges previous explanations of hemispatial neglect and enhances our understanding of how the brain manages spatial attention and mental effort. Additionally, we identify regions that might be the source of hemifield-specific capacity limits in attentional tracking.
Our findings reveal brain areas where effort-driven increases in activity are dependent on the visual hemifield where targets are tracked.
May 30, 2025 at 3:38 PM
Our findings reveal brain areas where effort-driven increases in activity are dependent on the visual hemifield where targets are tracked.
I am excited to announce (belatedly) that my dissertation’s final chapter has been published in the Journal of Neuroscience! doi.org/10.1523/JNEU...
Hemifield Specificity of Attention Response Functions during Multiple-Object Tracking
The difficulty of tracking multiple moving objects among identical distractors increases with the number of tracked targets. Previous research has shown that the number of targets tracked (i.e., load)...
doi.org
May 30, 2025 at 3:38 PM
I am excited to announce (belatedly) that my dissertation’s final chapter has been published in the Journal of Neuroscience! doi.org/10.1523/JNEU...
large changes in a visual scene often go unnoticed if they're outside one's focus of attention ("change blindness").
visual attention can be voluntary or involuntary, spatial or feature-based. the parietal lobe is key: lesions cause an inability to attend to the contralateral hemifield ("neglect").
visual attention can be voluntary or involuntary, spatial or feature-based. the parietal lobe is key: lesions cause an inability to attend to the contralateral hemifield ("neglect").
February 4, 2025 at 6:38 AM
large changes in a visual scene often go unnoticed if they're outside one's focus of attention ("change blindness").
visual attention can be voluntary or involuntary, spatial or feature-based. the parietal lobe is key: lesions cause an inability to attend to the contralateral hemifield ("neglect").
visual attention can be voluntary or involuntary, spatial or feature-based. the parietal lobe is key: lesions cause an inability to attend to the contralateral hemifield ("neglect").
huh, i knew human vision was center-weighted, but i didn't realize it was *that* center-weighted
March 6, 2024 at 7:32 AM
huh, i knew human vision was center-weighted, but i didn't realize it was *that* center-weighted
In the IPS, but not the VC, spatial locations generalized across hemifield by sequence position. E.g., a location at the left point of the star in the left hemifield shared a common code with the left point of the star in the right hemifield. This indicates abstract coding of sequence in the IPS.
January 23, 2026 at 6:26 PM
In the IPS, but not the VC, spatial locations generalized across hemifield by sequence position. E.g., a location at the left point of the star in the left hemifield shared a common code with the left point of the star in the right hemifield. This indicates abstract coding of sequence in the IPS.
Clinical trial: #multisensory rehabilitation of vision loss after cortical damage https://clinicaltrials.gov/study/NCT07659691 "evaluate the functional recovery of vision in hemianopic (blindness in one hemifield) and quadrantanopic (blindness in one quadrant) patients"; #hemianopia #blindness […]
Original post on mas.to
mas.to
June 22, 2026 at 4:26 PM
Clinical trial: #multisensory rehabilitation of vision loss after cortical damage https://clinicaltrials.gov/study/NCT07659691 "evaluate the functional recovery of vision in hemianopic (blindness in one hemifield) and quadrantanopic (blindness in one quadrant) patients"; #hemianopia #blindness […]
What happens when people with visual hemispatial neglect hear an unexpected change in their blind hemifield, representing a visual change encoded in sound by The vOICe?
January 27, 2026 at 7:07 AM
What happens when people with visual hemispatial neglect hear an unexpected change in their blind hemifield, representing a visual change encoded in sound by The vOICe?
2of3) Our study showed that those with right hemifield vision loss performed comparably to age-matched controls in a virtual reality driving task, showing that steering and gaze behavior were remarkably preserved despite large visual deficits.
April 3, 2026 at 4:07 PM
2of3) Our study showed that those with right hemifield vision loss performed comparably to age-matched controls in a virtual reality driving task, showing that steering and gaze behavior were remarkably preserved despite large visual deficits.
Huh, interesting. I can definitely imagine things in a single hemifield.
September 17, 2025 at 7:30 PM
Huh, interesting. I can definitely imagine things in a single hemifield.
Are there any reports of unilateral aphantasia? e.g. people who report being able to imagine things in the right hemifield, but not the left one?
September 17, 2025 at 7:10 PM
Are there any reports of unilateral aphantasia? e.g. people who report being able to imagine things in the right hemifield, but not the left one?
Anyone familiar with reports of hemispatial neglect affecting the right hemifield, following damage to the left hemisphere? Wikipedia mentions that such cases exist, but no ref linked to this statement.
July 24, 2019 at 1:44 PM
Anyone familiar with reports of hemispatial neglect affecting the right hemifield, following damage to the left hemisphere? Wikipedia mentions that such cases exist, but no ref linked to this statement.
Clinical trial: #Multisensory rehabilitation of vision loss after cortical damage clinicaltrials.gov/study/NCT076... "evaluate the functional recovery of vision in hemianopic (blindness in one hemifield) and quadrantanopic (blindness in one quadrant) patients"; #hemianopia #blindness
ClinicalTrials.gov
clinicaltrials.gov
June 22, 2026 at 4:25 PM
Clinical trial: #Multisensory rehabilitation of vision loss after cortical damage clinicaltrials.gov/study/NCT076... "evaluate the functional recovery of vision in hemianopic (blindness in one hemifield) and quadrantanopic (blindness in one quadrant) patients"; #hemianopia #blindness
Simulating #hemianopia where you can *hear* more visual detail in your blind hemifield than you can *see* www.seeingwithsound.com/webvoice/web...
The vOICe web app
Platform-independent progressive web app version of The vOICe vision BCI.
www.seeingwithsound.com
June 18, 2026 at 2:27 PM
Simulating #hemianopia where you can *hear* more visual detail in your blind hemifield than you can *see* www.seeingwithsound.com/webvoice/web...
Ah, thank you! Indeed a light leakage challenge, but I thought that you wanted to visually stimulate only unimplanted visual cortex, in which case I would then think of only stimulating the "contralateral" hemifield of the right eye in view of how the optic chiasm routes. Sorry if missing the point.
May 3, 2026 at 11:19 AM
Ah, thank you! Indeed a light leakage challenge, but I thought that you wanted to visually stimulate only unimplanted visual cortex, in which case I would then think of only stimulating the "contralateral" hemifield of the right eye in view of how the optic chiasm routes. Sorry if missing the point.
Currently digesting the gist of your very interesting new paper, and wondering: why visual stimulation of the contralateral eye instead of "contralateral" hemifield (in both eyes) to visually stimulate only V1 in the unimplanted hemisphere?
May 3, 2026 at 6:39 AM
Currently digesting the gist of your very interesting new paper, and wondering: why visual stimulation of the contralateral eye instead of "contralateral" hemifield (in both eyes) to visually stimulate only V1 in the unimplanted hemisphere?
Pulfrich - Ganzflicker experience page www.seeingwithsound.com/ganzflicker....
Ganzflicker: Ganzfeld rhythmic visual flicker with optional hemifield differences
Aiming for vivid and complex pseudo-hallucinations with imagery
www.seeingwithsound.com
February 27, 2026 at 8:59 PM
Pulfrich - Ganzflicker experience page www.seeingwithsound.com/ganzflicker....
What happens when people with visual hemispatial neglect hear an unexpected change in their blind hemifield, representing a visual change encoded in sound by The vOICe?
January 27, 2026 at 7:04 AM
What happens when people with visual hemispatial neglect hear an unexpected change in their blind hemifield, representing a visual change encoded in sound by The vOICe?
Thank you. Yes, neglect differs from hemianopia, but I would be surprised if there were no overlap at some level in drawing attention to visual events in the blind or neglected hemifield through some type of intervention.
June 18, 2025 at 11:17 AM
Thank you. Yes, neglect differs from hemianopia, but I would be surprised if there were no overlap at some level in drawing attention to visual events in the blind or neglected hemifield through some type of intervention.
Hemifield asymmetry in the potency of exogenous auditory and visual cues http://tinyurl.com/5ra4dyx Vision Research
Hemifield asymmetry in the potency of exogenous auditory ...
Neurologically normal subjects misperceive the midpoints ...
tinyurl.com
April 14, 2025 at 5:44 PM
Hemifield asymmetry in the potency of exogenous auditory and visual cues http://tinyurl.com/5ra4dyx Vision Research