Hello.

I'm currently studying the effect of optogenetic stimulation on social behaviors using the mouse model of autism spectrum disorder (ASD). In one of my experiments, I conducted the three-chamber test in two sessions, before and after the optogenetic stimulation. The social memory (or social novelty preference) test, which is the second phase of the three-chamber test, consisted of a novel mouse on one side and a familiar mouse that has been exposed to the subject earlier on the other side, as established by previous protocols.

In the first session (before the optogenetic stimulation), the subject mice couldn't distinguish between the familiar and novel mouse, which was demonstrated by similar time spent in interaction with each mouse. However, in the second session (after the optogenetic stimulation), the subject mice spent significantly more time interacting with the familiar mouse rather than the novel mouse (The target mice pair was replaced by a new pair in the second session). This result was quite unexpected and confusing since it is well known that mice generally seek novelty by natural instinct, which is exhibited by exploration time. But anyway, I still interpreted this finding as a positive improvement of the social memory, because after the stimulation, the subjects can now at least distinguish between familiar and novel targets.

Currently, I'm trying to search for some references that reported similar results of social attraction towards the familiar mouse, or any other alternative explanation based on the natural behaviors of mice, but haven't found any. Can anyone provide suggestions or recommend references with relevant findings? Is my interpretation correct?

Thanks in advance.

More Sung-Jun Lee's questions See All
Similar questions and discussions