{Reference Type}: Journal Article {Title}: Enhanced long-term potentiation in the anterior cingulate cortex of tree shrew. {Author}: Song Q;Li XH;Lu JS;Chen QY;Liu RH;Zhou SB;Zhuo M; {Journal}: Philos Trans R Soc Lond B Biol Sci {Volume}: 379 {Issue}: 1906 {Year}: 2024 Jul 29 {Factor}: 6.671 {DOI}: 10.1098/rstb.2023.0240 {Abstract}: Synaptic plasticity is a key cellular model for learning, memory and chronic pain. Most previous studies were carried out in rats and mice, and less is known about synaptic plasticity in non-human primates. In the present study, we used integrative experimental approaches to study long-term potentiation (LTP) in the anterior cingulate cortex (ACC) of adult tree shrews. We found that glutamate is the major excitatory transmitter and α-amino-3-hydroxy-5-methyl-4-isoxazole-propionicacid (AMPA) receptors mediate postsynaptic responses. LTP in tree shrews was greater than that in adult mice and lasted for at least 5 h. N-methyl-d-aspartic acid (NMDA) receptors, Ca2+ influx and adenylyl cyclase 1 (AC1) contributed to tree shrew LTP. Our results suggest that LTP is a major form of synaptic plasticity in the ACC of primate-like animals. This article is part of a discussion meeting issue 'Long-term potentiation: 50 years on'.