Ling-Qi Zhang
@lingqiz.bsky.social
🧠 Comp Neuro, Behavior, Theory and Machine Learning | Theory Fellow @HHMI Janelia | 💻 https://lingqiz.github.io/
Being a good Bayesian, I strive to maintain a posterior distribution over scientific hypotheses at all times :P
November 2, 2025 at 7:59 PM
Being a good Bayesian, I strive to maintain a posterior distribution over scientific hypotheses at all times :P
In this sense, the normative theory / optimization framework is less of a theory itself, but a epistemological tool to organize our knowledege about why certain "solution" exists in the brain.
September 15, 2025 at 2:58 PM
In this sense, the normative theory / optimization framework is less of a theory itself, but a epistemological tool to organize our knowledege about why certain "solution" exists in the brain.
And then he wrote: "Hence, the study of the
behavior of an adaptive system like the human mind is
not *a logical study of optimization* but an *empirical study
of the side conditions* that place limits on the approach to the optimum".
behavior of an adaptive system like the human mind is
not *a logical study of optimization* but an *empirical study
of the side conditions* that place limits on the approach to the optimum".
September 15, 2025 at 2:58 PM
And then he wrote: "Hence, the study of the
behavior of an adaptive system like the human mind is
not *a logical study of optimization* but an *empirical study
of the side conditions* that place limits on the approach to the optimum".
behavior of an adaptive system like the human mind is
not *a logical study of optimization* but an *empirical study
of the side conditions* that place limits on the approach to the optimum".
Thanks!! There are no major changes in the main text re results. We did refine the vignetting analysis, but it didn't make a huge difference in the end results. We also added a polar ROI analysis in the supplement, complementary to the eccentricity ROI in Fig. 5.
April 25, 2025 at 12:52 PM
Thanks!! There are no major changes in the main text re results. We did refine the vignetting analysis, but it didn't make a huge difference in the end results. We also added a polar ROI analysis in the supplement, complementary to the eccentricity ROI in Fig. 5.
And I'm very excited to see how this theoretical framework (the original credit goes to www.nature.com/articles/nrn...) might explain many other illusions (e.g., motion aftereffect) in a principled way! (6/6)
Space and time in visual context - Nature Reviews Neuroscience
Sensory stimuli are interpreted in light of their spatial and temporal context, which can sometimes lead to visual illusions. Schwartz, Hsu and Dayan consider the possible functional benefits of conte...
www.nature.com
April 24, 2025 at 2:15 AM
And I'm very excited to see how this theoretical framework (the original credit goes to www.nature.com/articles/nrn...) might explain many other illusions (e.g., motion aftereffect) in a principled way! (6/6)
Lastly, our results, together with some recent work such as journals.plos.org/ploscompbiol... and www.biorxiv.org/content/10.1... @mariodipoppa.bsky.social, are painting a compelling picture of how contextual effects (both spatial and temporal) can be interpreted as adaptive efficient coding. (5/6)
Adaptation optimizes sensory encoding for future stimuli
Author summary Prolonged exposure to a fixed stimulus causes sensory neurons to adapt. In this study, we uncover some of the functional benefits of adaptation for the visual system. We first quantifie...
journals.plos.org
April 24, 2025 at 2:15 AM
Lastly, our results, together with some recent work such as journals.plos.org/ploscompbiol... and www.biorxiv.org/content/10.1... @mariodipoppa.bsky.social, are painting a compelling picture of how contextual effects (both spatial and temporal) can be interpreted as adaptive efficient coding. (5/6)
In addition, the change in encoding is sufficient to predict the behavioral characteristics of the tilt illusion using a Bayesian observer model. (4/6)
April 24, 2025 at 2:15 AM
In addition, the change in encoding is sufficient to predict the behavioral characteristics of the tilt illusion using a Bayesian observer model. (4/6)
With an oriented surround, encoding precision is locally increased for stimuli similar to the surround orientation, specifically in higher areas of the visual cortex. This encoding change also reflects the surround-conditioned orientation statistics in natural scene. (3/6)
April 24, 2025 at 2:15 AM
With an oriented surround, encoding precision is locally increased for stimuli similar to the surround orientation, specifically in higher areas of the visual cortex. This encoding change also reflects the surround-conditioned orientation statistics in natural scene. (3/6)
We measured sensory encoding precision (in terms of Fisher information) from both behavioral and neural data in an orientation estimation task. At baseline, encoding reflects the natural scene statistics of orientation. (We observe the cardinal bias in different parts of the visual cortex!). (2/6)
April 24, 2025 at 2:15 AM
We measured sensory encoding precision (in terms of Fisher information) from both behavioral and neural data in an orientation estimation task. At baseline, encoding reflects the natural scene statistics of orientation. (We observe the cardinal bias in different parts of the visual cortex!). (2/6)