Related Experiment Video
Updated: Feb 12, 2026

C. elegans Positive Butanone Learning, Short-term, and Long-term Associative Memory Assays
Published on: March 11, 2011
Synaptic characteristics with strong analog potentiation, depression, and short-term to long-term memory transition
Hyung Jun Kim1, Daehoon Park1, Paul Yang1
1Department of Materials Science and Engineering, Myongji University, Gyeonggi-do 17058, Republic of Korea.
None:
A crossbar array of Pt/CeO2/Pt memristors exhibited the synaptic characteristics such as analog, reversible, and strong resistance change with a ratio of ∼103, corresponding to wide dynamic range of synaptic weight modulation as potentiation and depression with respect to the voltage polarity. In addition, it presented timing-dependent responses such as paired-pulse facilitation and the short-term to long-term memory transition by increasing amplitude, width, and repetition number of voltage pulse and reducing the interval time between pulses. The memory loss with a time was fitted with a stretched exponential relaxation model, revealing the relation of memory stability with the input stimuli strength. The resistance change was further enhanced but its stability got worse as increasing measurement temperature, indicating that the resistance was changed as a result of voltage- and temperature-dependent electrical charging and discharging to alter the energy barrier for charge transport. These detailed synaptic characteristics demonstrated the potential of crossbar array of Pt/CeO2/Pt memristors as artificial synapses in highly connected neuron-synapse network.
Related Concept Videos
Long-term Depression
Long-term Depression
Calcium Ion Concentration Mechanism
If over...
Long-Term Memory
Long-term memory can be categorized into two primary types: explicit and implicit memory. Explicit memory, also known as declarative memory, involves the conscious recollection of information that we deliberately try to remember, recall, and articulate. This type of memory encompasses specific facts, events, and...
Long-term Potentiation
Long-term Potentiation
Hebbian LTP
LTP can occur when...
Directional Terms

