Results 31 to 40 of about 65,094 (251)

Bayesian artificial brain with ChatGPT

open access: yesCoRR, 2023
This paper aims to investigate the mathematical problem-solving capabilities of Chat Generative Pre-Trained Transformer (ChatGPT) in case of Bayesian reasoning. The study draws inspiration from Zhu & Gigerenzer's research in 2006, which posed the question: Can children reason the Bayesian way?
openaire   +2 more sources

To integrate or not to integrate: Temporal dynamics of hierarchical Bayesian causal inference.

open access: yesPLoS Biology, 2019
To form a percept of the environment, the brain needs to solve the binding problem-inferring whether signals come from a common cause and are integrated or come from independent causes and are segregated.
Máté Aller, Uta Noppeney
doaj   +1 more source

Objective Bayesian fMRI analysis - a pilot study in different clinical environments

open access: yesFrontiers in Neuroscience, 2015
Functional MRI (fMRI) used for neurosurgical planning delineates functionally eloquent brain areas by time-series analysis of task-induced BOLD signal changes. Commonly used frequentist statistics protect against false positive results based on a p-value
Joerg eMagerkurth   +15 more
doaj   +1 more source

Bayesian Models of Brain and Behaviour [PDF]

open access: yesISRN Biomathematics, 2012
This paper presents a review of Bayesian models of brain and behaviour. We first review the basic principles of Bayesian inference. This is followed by descriptions of sampling and variational methods for approximate inference, and forward and backward recursions in time for inference in dynamical models. The review of behavioural models covers work in
openaire   +1 more source

Comparing Bayesian and non-Bayesian accounts of human confidence reports. [PDF]

open access: yesPLoS Computational Biology, 2018
Humans can meaningfully report their confidence in a perceptual or cognitive decision. It is widely believed that these reports reflect the Bayesian probability that the decision is correct, but this hypothesis has not been rigorously tested against non ...
William T Adler, Wei Ji Ma
doaj   +1 more source

Spatial Bayesian GLM on the cortical surface produces reliable task activations in individuals and groups

open access: yesNeuroImage, 2022
The general linear model (GLM) is a widely popular and convenient tool for estimating the functional brain response and identifying areas of significant activation during a task or stimulus.
Daniel Spencer   +4 more
doaj   +1 more source

BAYESIAN SENSE OF TIME IN BIOLOGICAL AND ARTIFICIAL BRAINS

open access: yes, 2023
Enquiries concerning the underlying mechanisms and the emergent properties of a biological brain have a long history of theoretical postulates and experimental findings. Today, the scientific community tends to converge to a single interpretation of the brain's cognitive underpinnings -- that it is a Bayesian inference machine.
Zafeirios Fountas, Alexey Zakharov
openaire   +2 more sources

Cortical hierarchies perform Bayesian causal inference in multisensory perception.

open access: yesPLoS Biology, 2015
To form a veridical percept of the environment, the brain needs to integrate sensory signals from a common source but segregate those from independent sources.
Tim Rohe, Uta Noppeney
doaj   +1 more source

Brain dynamics for confidence-weighted learning.

open access: yesPLoS Computational Biology, 2020
Learning in a changing, uncertain environment is a difficult problem. A popular solution is to predict future observations and then use surprising outcomes to update those predictions.
Florent Meyniel
doaj   +1 more source

Brain-Inspired Hardware Solutions for Inference in Bayesian Networks

open access: yesFrontiers in Neuroscience, 2021
The implementation of inference (i.e., computing posterior probabilities) in Bayesian networks using a conventional computing paradigm turns out to be inefficient in terms of energy, time, and space, due to the substantial resources required by floating ...
Leila Bagheriye, Johan Kwisthout
doaj   +1 more source

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