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Mechano-gated iontronic piezomemristor for temporal-tactile neuromorphic plasticity.
Nat Commun
January 2025
School of Future Technology, University of Chinese Academy of Sciences, 100190, Beijing, PR China.
In bioneuronal systems, the synergistic interaction between mechanosensitive piezo channels and neuronal synapses can convert and transmit pressure signals into complex temporal plastic pulses with excitatory and inhibitory features. However, existing artificial tactile neuromorphic systems struggle to replicate the elaborate temporal plasticity observed between excitatory and inhibitory features in biological systems, which is critical for the biomimetic processing and memorizing of tactile information. Here we demonstrate a mechano-gated iontronic piezomemristor with programmable temporal-tactile plasticity.
View Article and Find Full Text PDFBiologically inspired heterogeneous learning for accurate, efficient and low-latency neural network.
Natl Sci Rev
January 2025
School of Astronautics, Beihang University, Beijing 100191, China.
Article Synopsis
- Researchers aim to create artificial neural networks that match the performance of biological networks, focusing on accuracy, efficiency, and low latency.
- They developed a new spiking neural network (SNN) using concepts from neuroscience, including self-inhibiting autapse and neuron diversity, to improve learning and memory capabilities.
- The new SNN model demonstrated superior performance, achieving higher accuracy, energy efficiency, and reduced latency in various AI tasks, and successfully identified rare cell types linked to severe brain diseases.
Inspecting the external world: Memory capacity, but not memory self-efficacy, predicts offloading in working memory.
J Clin Exp Neuropsychol
January 2025
Experimental Psychology, Helmholtz Institute, Utrecht University, Utrecht, The Netherlands.
Individuals with memory impairments may need to rely often on the external world (i.e. offloading).
View Article and Find Full Text PDFPSYCHOTHERAPEUTICAL FEATURES OF PERSONS WITH MULTIPLE SCLEROSIS AND HEPATOCEREBRAL DEGENERATION.
Georgian Med News
June 2024
6Donetsk Regional Institute of Postgraduate Pedagogical Education, Kramatorsk, Ukraine.
Unlabelled: Physiological process of aging causes a slight deterioration in memorization, learning, and the speed of cognitive processes. There is often a big gap between established standards, norms that work for mass and individual cases, for which standards are no more than guidelines, not prescriptions and dementia could be caused by many factors, the most important of which are degenerative, vascular, and toxic. Multiple sclerosis (MS) is the commonest non-traumatic disabling disease to affect young adults.
View Article and Find Full Text PDFA non-memory-based functional neural framework for animal caching behavior.
Sci Rep
August 2024
Department of Cognitive and Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel.
Article Synopsis
- The brain's ability to learn and adapt is remarkable, but memory has limits, particularly in tasks like storing and retrieving a large number of items, as seen in scatter-hoarding animals.
- The proposed mechanism for caching and retrieving food focuses on hippocampal spatial cells, suggesting that these animals use a static method similar to hash functions in computing instead of simply memorizing cache locations.
- The model indicates that these spatial cells maintain consistent activation patterns in familiar areas but can remap when in different locations, creating unique cognitive maps and probabilistic hashes that efficiently encode and retrieve food caches, independent of environmental changes.
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