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Pieter Roelfsema Profile
Pieter Roelfsema

@Pieters_Tweet

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Joined March 2016
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Pieter Roelfsema
6 days
We have a PhD-position at the institute de la Vision in to develop optogenetic stimulation in macaques to induce and refine artificial vision for blind people. For information about the position and the application procedure, see
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Pieter Roelfsema
1 month
Paolo Papale's THINGS ventral stream spiking dataset (TVSD) came out. It is open and contains neuronal responses in V1, V4 and IT to ~25,000 THINGS images. We expect that the dataset will be useful to compare the visual brain to deep neural networks.
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Pieter Roelfsema
2 months
Here is Matt Self's preprint on the responses of LGN neurons in a human patient, together with Osvaldo Vilela, Sergio Neuenschwander and others. The cells had center-surround receptive fields, and showed surprising activity changes when an eye was closed.
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Pieter Roelfsema
3 months
Paolo Papale et al. find that the representation of borders of objects in natural scenes are special in the visual brain. Borders elicit extra activity in area V1. There is an early effect reflecting receptive field tuning and a later, contextual effect.
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Pieter Roelfsema
4 months
This new paper spearheaded by Matt Self shows the link between border-ownership tuning in area V4 of the visual cortex and figure-ground signals in area V1, by an analysis of the pattern of noise correlations between neurons in these two cortical areas.
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Pieter Roelfsema
5 months
@DorisDijk @MatthewWSelf I am very happy that the paper about hippocampal responses elicited by pronouns that refer to concepts came out this week!
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Pieter Roelfsema
5 months
Our lab at the Institut de la Vision (IDV) in Paris is seeking a PhD student or postdoc. The project explores the function and organisation of the macaque visual brain using high channel count neural interfaces for neuroscience and prosthetics.
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Pieter Roelfsema
8 months
RT @LintonVision: Pleased to announce our Generative Adversarial Collaboration at @CogCompNeuro #CCN2024 “Is V1 a Cognitive Map?” And we…
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@Pieters_Tweet
Pieter Roelfsema
8 months
RT @Leveltlab: Fantastic work, Koen! Great that you can finally share this last paper of your PhD work. This was a super inspiring HBP-fund…
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Pieter Roelfsema
9 months
Neuroprostheses to electrically stimulate the brain of e.g. blind individuals benefit from monitoring of neurons, to test if the activation suffices. Feng Wang et al. compared methods to remove electrical artefacts that would otherwise obscure the signal.
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Pieter Roelfsema
9 months
RT @gdb: GPT-4o as tested by @BeMyEyes:
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Pieter Roelfsema
10 months
RT @StanDehaene: So sad to read this. Dan was a giant and a gentleman, a ceaseless source of deep and joyful ideas
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@Pieters_Tweet
Pieter Roelfsema
10 months
We have an exciting position for a PhD student or postdoc working on the processes that transform visual inputs into image understanding. the candidate will study neuronal activity at various levels of the visual cortex.
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Pieter Roelfsema
10 months
Many congratulations to Rainer Goebel for winning the ERC advanced grant!
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Pieter Roelfsema
11 months
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@Pieters_Tweet
Pieter Roelfsema
11 months
RT @ChrizKlink: The final version of the paper is now openly available @NeuroCellPress via
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Pieter Roelfsema
1 year
Here, Corin Orlemann our and collaborators at IMTEK (Freiburg) tested polymer electrodes in the visual cortex of mice for artificial perception. They lasted longer than the lifespan of the mice, withstood 10B pulses and did not cause much tissue damage.
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@Pieters_Tweet
Pieter Roelfsema
1 year
In this paper Maureen van der Grinten, Jaap Ruyter van Steveninck and the other team members create a realistic simulation of what a future visual prosthesis user might perceive. It is a very useful resource for researchers in visual prosthetics.
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