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Analytical and empirical measurement of fiber photometry signal volume in brain tissue

Authors: Marco Pisanello, Filippo Pisano, Minsuk Hyun, Emanuela Maglie, Antonio Balena, Massimo De Vittorio, Bernardo L Sabatini, Ferruccio Pisanello

arXiv

Fiber photometry permits monitoring fluorescent indicators of neural activity in behaving animals. Optical fibers are typically used to excite and collect fluorescence from genetically-encoded calcium...

mental health psychology open access

Exploring Brain-wide Development of Inhibition through Deep Learning

Authors: Asim Iqbal, Asfandyar Sheikh, Theofanis Karayannis

arXiv

We introduce here a fully automated convolutional neural network-based method for brain image processing to Detect Neurons in different brain Regions during Development (DeNeRD). Our method takes a de...

mental health psychology open access

Gradient Hyperalignment for multi-subject fMRI data alignment

Authors: Tonglin Xu, Muhammad Yousefnezhad, Daoqiang Zhang

arXiv

Multi-subject fMRI data analysis is an interesting and challenging problem in human brain decoding studies. The inherent anatomical and functional variability across subjects make it necessary to do b...

mental health psychology open access

State-space modeling of intra-seasonal persistence in daily climate indices: a data-driven approach for seasonal forecasting

Authors: Philip G. Sansom, David B. Stephenson, Daniel B. Williamson

arXiv

Existing methods for diagnosing predictability in climate indices often make a number of unjustified assumptions about the climate system that can lead to misleading conclusions. We present a flexible...

mental health psychology open access

Automatic, fast and robust characterization of noise distributions for diffusion MRI

Authors: Samuel St-Jean, Alberto De Luca, Max A. Viergever, Alexander Leemans

arXiv

Knowledge of the noise distribution in magnitude diffusion MRI images is the centerpiece to quantify uncertainties arising from the acquisition process. The use of parallel imaging methods, the number...

mental health psychology open access

Data-driven causal path discovery without prior knowledge - a benchmark study

Authors: Marcel MƂyƄczak

arXiv

Causal discovery broadens the inference possibilities, as correlation does not inform about the relationship direction. The common approaches were proposed for cases in which prior knowledge is desire...

mental health psychology open access

A Neural-Astrocytic Network Architecture: Astrocytic calcium waves modulate synchronous neuronal activity

Authors: Ioannis Polykretis, Vladimir Ivanov, Konstantinos P. Michmizos

arXiv

Understanding the role of astrocytes in brain computation is a nascent challenge, promising immense rewards, in terms of new neurobiological knowledge that can be translated into artificial intelligen...

mental health psychology open access

A gradient flow formulation for the stochastic Amari neural field model

Authors: Christian Kuehn, Jonas M. Tölle

arXiv

We study stochastic Amari-type neural field equations, which are mean-field models for neural activity in the cortex. We prove that under certain assumptions on the coupling kernel, the neural field m...

mental health psychology open access

Adaptive Paired-Comparison Method for Subjective Video Quality Assessment on Mobile Devices

Authors: Katherine Storrs, Sebastiaan Van Leuven, Steve Kojder, Lucas Theis, Ferenc HuszĂĄr

arXiv

To effectively evaluate subjective visual quality in weakly-controlled environments, we propose an Adaptive Paired Comparison method based on particle filtering. As our approach requires each sample t...

mental health psychology open access

Coastline Kriging: A Bayesian Approach

Authors: Nada Abdalla, Sudipto Banerjee, Gurumurthy Ramachandran, Mark Stenzel, Patricia A. Stewart

arXiv

Statistical interpolation of chemical concentrations at new locations is an important step in assessing a worker's exposure level. When measurements are available from coastlines, as is the case in co...

mental health psychology open access

Brain synchronizability, a false friend

Authors: David Papo, Javier M. BuldĂș

arXiv

Synchronization plays a fundamental role in healthy cognitive and motor function. However, how synchronization depends on the interplay between local dynamics, coupling and topology and how prone to s...

mental health psychology open access

Experimental Tests of Spirituality

Authors: Abraham Loeb

arXiv

We currently harness technologies that could shed new light on old philosophical questions, such as whether our mind entails anything beyond our body or whether our moral values reflect universal trut...

mental health psychology open access

Behavior stability and individual differences in Pavlovian extended conditioning

Authors: Gianluca Calcagni, Ernesto Caballero-Garrido, Ricardo PellĂłn

arXiv

How stable and general is behavior once maximum learning is reached? To answer this question and understand post-acquisition behavior and its related individual differences, we propose a psychological...

mental health psychology open access

Ultrafast population coding and axo-somatic compartmentalization

Authors: Chenfei Zhang, David Hofmann, Andreas Neef, Fred Wolf

arXiv

Cortical neurons in the fluctuation driven regime can realize ultrafast population encoding. The underlying biophysical mechanisms, however, are not well understood. Reducing the sharpness of the acti...

mental health psychology open access

Task-Driven Convolutional Recurrent Models of the Visual System

Authors: Aran Nayebi, Daniel Bear, Jonas Kubilius, Kohitij Kar, Surya Ganguli, David Sussillo, James J. DiCarlo, Daniel L. K. Yamins

arXiv

Feed-forward convolutional neural networks (CNNs) are currently state-of-the-art for object classification tasks such as ImageNet. Further, they are quantitatively accurate models of temporally-averag...

mental health psychology open access