Vlad Ayzenberg
@vayzenb.bsky.social
Director of the Vision Learning and Development Lab at Temple University.
Interested in cognition, computation, neuroscience, and development.
https://vlad-lab.com/
Interested in cognition, computation, neuroscience, and development.
https://vlad-lab.com/
Excited to be at my first @cogscisociety.bsky.social meeting!
Come check out my talk tomorrow morning on the organization of the human visual system at birth in @noranewcombe.bsky.social Rumelhart award symposium
#CogSci2025
Come check out my talk tomorrow morning on the organization of the human visual system at birth in @noranewcombe.bsky.social Rumelhart award symposium
#CogSci2025
July 31, 2025 at 5:06 PM
Excited to be at my first @cogscisociety.bsky.social meeting!
Come check out my talk tomorrow morning on the organization of the human visual system at birth in @noranewcombe.bsky.social Rumelhart award symposium
#CogSci2025
Come check out my talk tomorrow morning on the organization of the human visual system at birth in @noranewcombe.bsky.social Rumelhart award symposium
#CogSci2025
Indeed, when we plot human and model performance using these estimates, we see a massive discrepancy between the two. Children achieve much strong performance with far fewer examples.
July 2, 2025 at 7:38 PM
Indeed, when we plot human and model performance using these estimates, we see a massive discrepancy between the two. Children achieve much strong performance with far fewer examples.
We generally found that kids outperformed most models *except* for models trained on massive datasets like CLIP.
However, these large models may be given more training than a child could realistically experience in their lifetime.
However, these large models may be given more training than a child could realistically experience in their lifetime.
July 2, 2025 at 7:38 PM
We generally found that kids outperformed most models *except* for models trained on massive datasets like CLIP.
However, these large models may be given more training than a child could realistically experience in their lifetime.
However, these large models may be given more training than a child could realistically experience in their lifetime.
To our surprise, children performed extremely well on this task, even at the fastest speed and when the contours of the objects were disrupted.
July 2, 2025 at 7:38 PM
To our surprise, children performed extremely well on this task, even at the fastest speed and when the contours of the objects were disrupted.
Here we administered what we thought would be a challenging task for kids. Three- to five-year-olds were asked to identify object outlines, that were both forward and backward masked, could be presented as quickly as 100 ms, and could even have their contours perturbed or deleted.
July 2, 2025 at 7:38 PM
Here we administered what we thought would be a challenging task for kids. Three- to five-year-olds were asked to identify object outlines, that were both forward and backward masked, could be presented as quickly as 100 ms, and could even have their contours perturbed or deleted.
Come check out my poster with @mikearcaro.bsky.social tomorrow afternoon in the pavilion where we describe the cortical and subcortical organization of the newborn visual system!
@vssmtg.bsky.social
#VSS2025
@vssmtg.bsky.social
#VSS2025
May 17, 2025 at 8:12 PM
Come check out my poster with @mikearcaro.bsky.social tomorrow afternoon in the pavilion where we describe the cortical and subcortical organization of the newborn visual system!
@vssmtg.bsky.social
#VSS2025
@vssmtg.bsky.social
#VSS2025
Vlad-Lab: Year 0
Starting with a fresh board
Starting with a fresh board
March 27, 2025 at 8:04 PM
Vlad-Lab: Year 0
Starting with a fresh board
Starting with a fresh board
I'm hiring a full-time research assistant to start this Summer!
The lab studies perception and cognition from infancy to adulthood using neuroimaging, behavioral, and computational approaches
For more details about the lab and the position, see: vlad-lab.com/join
#psychjobs #neurojobs
The lab studies perception and cognition from infancy to adulthood using neuroimaging, behavioral, and computational approaches
For more details about the lab and the position, see: vlad-lab.com/join
#psychjobs #neurojobs
February 17, 2025 at 3:31 PM
I'm hiring a full-time research assistant to start this Summer!
The lab studies perception and cognition from infancy to adulthood using neuroimaging, behavioral, and computational approaches
For more details about the lab and the position, see: vlad-lab.com/join
#psychjobs #neurojobs
The lab studies perception and cognition from infancy to adulthood using neuroimaging, behavioral, and computational approaches
For more details about the lab and the position, see: vlad-lab.com/join
#psychjobs #neurojobs
However, we also found a differential pattern of maturity across the pulvinar connectivity maps, such that the pattern of connections with the ventral visual pathway was less adult-like than for other visual areas.
January 7, 2025 at 3:35 PM
However, we also found a differential pattern of maturity across the pulvinar connectivity maps, such that the pattern of connections with the ventral visual pathway was less adult-like than for other visual areas.
Remarkably, the pattern of connections with V1 was spatially correlated with *functional* retinotopic responses of the adult pulvinar.
That is, areas of the pulvinar most connected with dorsal V1 in neonates responded to stimuli in the lower-visual-field of adults (and vice versa for ventral V1)
That is, areas of the pulvinar most connected with dorsal V1 in neonates responded to stimuli in the lower-visual-field of adults (and vice versa for ventral V1)
January 7, 2025 at 3:35 PM
Remarkably, the pattern of connections with V1 was spatially correlated with *functional* retinotopic responses of the adult pulvinar.
That is, areas of the pulvinar most connected with dorsal V1 in neonates responded to stimuli in the lower-visual-field of adults (and vice versa for ventral V1)
That is, areas of the pulvinar most connected with dorsal V1 in neonates responded to stimuli in the lower-visual-field of adults (and vice versa for ventral V1)
This structured connectivity was even found when splitting a single area, V1, into dorsal and ventral components, revealing distinct patterns of connectivity corresponding to each component
January 7, 2025 at 3:35 PM
This structured connectivity was even found when splitting a single area, V1, into dorsal and ventral components, revealing distinct patterns of connectivity corresponding to each component
Zooming into the pulvinar, we found that that each cortical area exhibited a distinct peak of connectivity.
Collectivity, visual areas showed gradients of connectivity in the pulvinar corresponding to the hierarchical organization of ventral, lateral, and dorsal visual pathways.
Collectivity, visual areas showed gradients of connectivity in the pulvinar corresponding to the hierarchical organization of ventral, lateral, and dorsal visual pathways.
January 7, 2025 at 3:35 PM
Zooming into the pulvinar, we found that that each cortical area exhibited a distinct peak of connectivity.
Collectivity, visual areas showed gradients of connectivity in the pulvinar corresponding to the hierarchical organization of ventral, lateral, and dorsal visual pathways.
Collectivity, visual areas showed gradients of connectivity in the pulvinar corresponding to the hierarchical organization of ventral, lateral, and dorsal visual pathways.
First, we found that the large-scale organization of pulvino-cortical connections was already in place at birth, such that the neonate pulvinar exhibited connections to each individual visual area.
January 7, 2025 at 3:35 PM
First, we found that the large-scale organization of pulvino-cortical connections was already in place at birth, such that the neonate pulvinar exhibited connections to each individual visual area.
But how adult like is the pulvinar in neonates and to what extent is it already wired up with cortex?
We tested this question by examining the organization and maturity of *structural connections* between the pulvinar and areas of occipital, ventral, lateral, and dorsal visual cortices.
We tested this question by examining the organization and maturity of *structural connections* between the pulvinar and areas of occipital, ventral, lateral, and dorsal visual cortices.
January 7, 2025 at 3:35 PM
But how adult like is the pulvinar in neonates and to what extent is it already wired up with cortex?
We tested this question by examining the organization and maturity of *structural connections* between the pulvinar and areas of occipital, ventral, lateral, and dorsal visual cortices.
We tested this question by examining the organization and maturity of *structural connections* between the pulvinar and areas of occipital, ventral, lateral, and dorsal visual cortices.
Of course huge thanks to all my amazing mentors that helped me get to this point: Stella Lourenco, Danny Dilks, Marlene Behrmann, Mike Arcaro, @noranewcombe.bsky.social, and Justin Harris
Bonus: baby vlad presenting his first poster as an undergrad
Bonus: baby vlad presenting his first poster as an undergrad
April 15, 2024 at 12:41 PM
Of course huge thanks to all my amazing mentors that helped me get to this point: Stella Lourenco, Danny Dilks, Marlene Behrmann, Mike Arcaro, @noranewcombe.bsky.social, and Justin Harris
Bonus: baby vlad presenting his first poster as an undergrad
Bonus: baby vlad presenting his first poster as an undergrad
By working at the intersection of developmental psychology, neuroscience, and artificial intelligence, our goal is to shed light on deep philosophical questions regarding the origins of cognition, as well as the processes by which we may 'grow' more human-like AI.
April 15, 2024 at 12:40 PM
By working at the intersection of developmental psychology, neuroscience, and artificial intelligence, our goal is to shed light on deep philosophical questions regarding the origins of cognition, as well as the processes by which we may 'grow' more human-like AI.
Super excited to announce that I'll be joining
Temple University as an assistant professor of Psychology and Neuroscience!
The Vision Learning and Development Lab will officially open its doors in Summer 2025! vlad-lab.com
Temple University as an assistant professor of Psychology and Neuroscience!
The Vision Learning and Development Lab will officially open its doors in Summer 2025! vlad-lab.com
April 15, 2024 at 12:39 PM
Super excited to announce that I'll be joining
Temple University as an assistant professor of Psychology and Neuroscience!
The Vision Learning and Development Lab will officially open its doors in Summer 2025! vlad-lab.com
Temple University as an assistant professor of Psychology and Neuroscience!
The Vision Learning and Development Lab will officially open its doors in Summer 2025! vlad-lab.com
Now out in Developmental Cognitive Neuroscience!
Here we examined the degree to which dorsal and ventral visual pathways can functionally reorganize after children have half of their brain surgically removed (!!)
doi.org/10.1016/j.dc...
#cogsci #devpsy #neuroscience
Here we examined the degree to which dorsal and ventral visual pathways can functionally reorganize after children have half of their brain surgically removed (!!)
doi.org/10.1016/j.dc...
#cogsci #devpsy #neuroscience
November 20, 2023 at 7:08 PM
Now out in Developmental Cognitive Neuroscience!
Here we examined the degree to which dorsal and ventral visual pathways can functionally reorganize after children have half of their brain surgically removed (!!)
doi.org/10.1016/j.dc...
#cogsci #devpsy #neuroscience
Here we examined the degree to which dorsal and ventral visual pathways can functionally reorganize after children have half of their brain surgically removed (!!)
doi.org/10.1016/j.dc...
#cogsci #devpsy #neuroscience
These two papers make really impressive strides in closing the gap between human and machine vision. Each one implements a new modelling method and uses psychological tasks as benchmarks for performance.
doi.org/10.48550/arX...
doi.org/10.48550/arX...
doi.org/10.48550/arX...
doi.org/10.48550/arX...
October 3, 2023 at 12:05 AM
These two papers make really impressive strides in closing the gap between human and machine vision. Each one implements a new modelling method and uses psychological tasks as benchmarks for performance.
doi.org/10.48550/arX...
doi.org/10.48550/arX...
doi.org/10.48550/arX...
doi.org/10.48550/arX...
In general, we found that the functions of the ventral pathway were more likely to reorganize to the contralateral hemisphere than the functions of the dorsal pathway.
For example, patients who had left hemispherectomies now showed word-selectivity in their right hemisphere.
For example, patients who had left hemispherectomies now showed word-selectivity in their right hemisphere.
August 14, 2023 at 2:27 PM
In general, we found that the functions of the ventral pathway were more likely to reorganize to the contralateral hemisphere than the functions of the dorsal pathway.
For example, patients who had left hemispherectomies now showed word-selectivity in their right hemisphere.
For example, patients who had left hemispherectomies now showed word-selectivity in their right hemisphere.
Specifically, we tested whether functions that are typically lateralized to one hemisphere of the ventral/dorsal pathway reorganize to the contralateral hemisphere - i.e., perception of words (left ventral), faces (right ventral), tools (left dorsal), global form (right dorsal).
August 14, 2023 at 2:26 PM
Specifically, we tested whether functions that are typically lateralized to one hemisphere of the ventral/dorsal pathway reorganize to the contralateral hemisphere - i.e., perception of words (left ventral), faces (right ventral), tools (left dorsal), global form (right dorsal).
Excited to share my first #bluesci preprint with Marlene Behrmann!
Here we explored the developmental trajectories of ventral and dorsal pathways in patients who have had half their brains removed (‼️)
https://www.biorxiv.org/content/10.1101/2023.08.03.551494v1.full
Here we explored the developmental trajectories of ventral and dorsal pathways in patients who have had half their brains removed (‼️)
https://www.biorxiv.org/content/10.1101/2023.08.03.551494v1.full
August 14, 2023 at 2:25 PM
Excited to share my first #bluesci preprint with Marlene Behrmann!
Here we explored the developmental trajectories of ventral and dorsal pathways in patients who have had half their brains removed (‼️)
https://www.biorxiv.org/content/10.1101/2023.08.03.551494v1.full
Here we explored the developmental trajectories of ventral and dorsal pathways in patients who have had half their brains removed (‼️)
https://www.biorxiv.org/content/10.1101/2023.08.03.551494v1.full