A model of working memory for encoding multiple items and ordered sequences exploiting the theta-gamma code

M Ursino, N Cesaretti, G Pirazzini - Cognitive Neurodynamics, 2023 - Springer
Recent experimental evidence suggests that oscillatory activity plays a pivotal role in the
maintenance of information in working memory, both in rodents and humans. In particular …

Construction of a hierarchical organization in semantic memory: A model based on neural masses and Gamma-band synchronization

M Ursino, G Pirazzini - Cognitive Computation, 2024 - Springer
Semantic memory is characterized by a hierarchical organization of concepts based on
shared properties. However, this aspect is insufficiently dealt with in recent …

Region level bi-directional deep learning framework for eeg-based image classification

A Fares, S Zhong, J Jiang - 2018 IEEE International …, 2018 - ieeexplore.ieee.org
Despite many deep learning models are proposed for content understanding or pattern
recognition of brain activities via EEGs, EEG-based object classification still demands efforts …

A neural network for learning the meaning of objects and words from a featural representation

M Ursino, C Cuppini, E Magosso - Neural Networks, 2015 - Elsevier
The present work investigates how complex semantics can be extracted from the statistics of
input features, using an attractor neural network. The study is focused on how feature …

An ordered-patch-based image classification approach on the image grassmannian manifold

C Xu, T Wang, J Gao, S Cao, W Tao… - IEEE transactions on …, 2013 - ieeexplore.ieee.org
This paper presents an ordered-patch-based image classification framework integrating the
image Grassmannian manifold to address handwritten digit recognition, face recognition …

Object recognition using a bio-inspired neuron model with bottom-up and top-down pathways

Y Zheng, Y Meng, Y Jin - Neurocomputing, 2011 - Elsevier
In this paper, a new artificial neural network model is proposed for visual object recognition,
in which the bottom-up, sensory-driven pathway and top-down, expectation-driven pathway …

An integrated neural model of semantic memory, lexical retrieval and category formation, based on a distributed feature representation

M Ursino, C Cuppini, E Magosso - Cognitive neurodynamics, 2011 - Springer
This work presents a connectionist model of the semantic-lexical system. Model assumes
that the lexical and semantic aspects of language are memorized in two distinct stores, and …

Fast and robust image segmentation by small-world neural oscillator networks

C Li, Y Li - Cognitive neurodynamics, 2011 - Springer
Inspired by the temporal correlation theory of brain functions, researchers have presented a
number of neural oscillator networks to implement visual scene segmentation problems …

A multi-layer neural-mass model for learning sequences using theta/gamma oscillations

F Cona, M Ursino - International journal of neural systems, 2013 - World Scientific
A neural mass model for the memorization of sequences is presented. It exploits three layers
of cortical columns that generate a theta/gamma rhythm. The first layer implements an auto …

Cross-sensory inhibition or unisensory facilitation: A potential neural architecture of modality switch effects

C Cuppini, M Ursino, E Magosso, MJ Crosse… - Journal of Mathematical …, 2020 - Elsevier
In a simple reaction time task in which auditory and visual stimuli are presented in random
sequence alone (A or V) or together (AV), there is a so-called reaction time (RT) cost on …