Research on the cannabinoid receptor type 1 has been conducted in various contexts, including its expression in the hippocampus and its role in conditions such as epilepsy, alzheimer's disease, and substance use disorder. The receptor's function in the hippocampus has been studied in mouse models, with findings on its impact on synaptic balance, memory consolidation, and social memory. The specific study on hippocampal expression of the cannabinoid receptor type 1 in canine epilepsy suggests a focus on this particular condition, but its relation to the broader research on the receptor's function is unclear.