📚 PsyDin Research Database

← PsyDin Home
Showing 15 of 20167 papers

Learning in Volatile Environments with the Bayes Factor Surprise

Authors: Vasiliki Liakoni, Alireza Modirshanechi, Wulfram Gerstner, Johanni Brea

arXiv

Surprise-based learning allows agents to rapidly adapt to non-stationary stochastic environments characterized by sudden changes. We show that exact Bayesian inference in a hierarchical model gives ri...

mental health psychology open access

Cost efficiency of fMRI studies using resting-state vs task-based functional connectivity

Authors: Xinzhi Zhang, Leslie A Hulvershorn, Todd Constable, Yize Zhao, Selena Wang

arXiv

We investigate whether and how we can improve the cost efficiency of neuroimaging studies with well-tailored fMRI tasks. The comparative study is conducted using a novel network science-driven Bayesia...

mental health psychology open access

Quantifying Entrainment Evidence: A Comparison of Frequentist and Bayesian Approaches for Information Processing Pathway Maps

Authors: Kaibo Zhang, Ji Wu, Chao Zhang, Andrew Thwaites

arXiv

Information Processing Pathway Maps (IPPMs) offer a scalable framework for formalizing the complex sequence of mathematical transformations applied to sensory stimuli. These maps chart the latency and...

mental health psychology open access

Three Failures of Pain Location: Why the Diagnostic Utility of Symptom Localization Is Not One Thing

Authors: Adam Y Shavit

arXiv

Patient-reported pain location is diagnostically decisive for some presentations and nearly uninformative for others. The prevailing account treats this as a single gradient of diagnostic utility gove...

mental health psychology open access

From dynamics to links: a sparse reconstruction of the topology of a neural network

Authors: Giacomo Aletti, Davide Lonardoni, Giovanni Naldi, Thierry Nieus

arXiv

One major challenge in neuroscience is the identification of interrelations between signals reflecting neural activity and how information processing occurs in the neural circuits. At the cellular and...

mental health psychology open access

Modelling time-order effects in haptic perception with a Bayesian dynamical framework

Authors: Gastón Avetta, Jose Lobera, Juan José Zárate, Inés Samengo, Damián G. Hernández

arXiv

Perceptual judgments of sequential stimuli are systematically biased by prior expectations and by the temporal structure of sensory input. In haptic discrimination tasks, these effects often manifest...

mental health psychology open access

Uncertainty on the Reproduction Ratio in the SIR Model

Authors: Sean Elliott, Christian Gourieroux

arXiv

The aim of this paper is to understand the extreme variability on the estimated reproduction ratio $R_0$ observed in practice. For expository purpose we consider a discrete time stochastic version of...

mental health psychology open access

Having a Ball: evaluating scoring streaks and game excitement using in-match trend estimation

Authors: Claus Thorn Ekstrøm, Andreas Kryger Jensen

arXiv

Many popular sports involve matches between two teams or players where each team have the possibility of scoring points throughout the match. While the overall match winner and result is interesting,...

mental health psychology open access

Toward Compact Data from Big Data

Authors: Song-Kyoo, Kim

arXiv

Bigdata is a dataset of which size is beyond the ability of handling a valuable raw material that can be refined and distilled into valuable specific insights. Compact data is a method that optimizes...

mental health psychology open access

Towards sample-efficient episodic control with DAC-ML

Authors: Ismael T. Freire, Adrián F. Amil, Vasiliki Vouloutsi, Paul F. M. J. Verschure

arXiv

The sample-inefficiency problem in Artificial Intelligence refers to the inability of current Deep Reinforcement Learning models to optimize action policies within a small number of episodes. Recent s...

mental health psychology open access

People infer recursive visual concepts from just a few examples

Authors: Brenden M. Lake, Steven T. Piantadosi

arXiv

Machine learning has made major advances in categorizing objects in images, yet the best algorithms miss important aspects of how people learn and think about categories. People can learn richer conce...

mental health psychology open access

Informed Bayesian Inference for the A/B Test

Authors: Quentin F. Gronau, K. N. Akash Raj, Eric-Jan Wagenmakers

arXiv

Booming in business and a staple analysis in medical trials, the A/B test assesses the effect of an intervention or treatment by comparing its success rate with that of a control condition. Across man...

mental health psychology open access

Double-calibration estimators accounting for under-coverage and nonresponse in socio-economic surveys

Authors: Maria Michela Dickson, Giuseppe Espa, Lorenzo Fattorini

arXiv

Under-coverage and nonresponse problems are jointly present in most socio-economic surveys. The purpose of this paper is to propose a completely design-based estimation strategy that accounts for both...

mental health psychology open access

Neuronal mechanisms for sequential activation of memory items: dynamics and reliability

Authors: Elif Köksal-Ersöz, Carlos Aguilar, Pascal Chossat, Martin Krupa, Frédéric Lavigne

arXiv

In this article we present a biologically inspired model of activation of memory items in a sequence. Our model produces two types of sequences, corresponding to two different types of cerebral functi...

mental health psychology open access

Spikebench: An open benchmark for spike train time-series classification

Authors: Ivan Lazarevich, Ilya Prokin, Boris Gutkin, Victor Kazantsev

arXiv

Modern well-performing approaches to neural decoding are based on machine learning models such as decision tree ensembles and deep neural networks. The wide range of algorithms that can be utilized to...

mental health psychology open access