Event Title
Examination of the Social Response Reversal Circuit in the Domestic Dog
Location
CSU Ballroom
Start Date
2-4-2019 10:00 AM
End Date
2-4-2019 11:30 AM
Student's Major
Psychology
Student's College
Social and Behavioral Sciences
Mentor's Name
Bradley Arsznov
Mentor's Department
Psychology
Mentor's College
Social and Behavioral Sciences
Description
One aspect of navigating a social environment involves the ability to inhibit inappropriate behaviors. Such inhibition in social situations has been shown to be related to activity in the Social Response Reversal (SRR) circuit (Blair and Cipolotti, 2004). The SRR circuit includes projections from the orbital prefrontal cortex to the amygdala, the medial hypothalamus, and the periaqueductal gray. This neurocircuit is found in most mammalian brains and is related to inhibition control in social situations. Blair and Cipolotti (2004) described this circuit in humans, where it regulates the suppression of aggression. Previously, Brutkowski and Dabrowska (1966) showed that damage to the ventromedial area of the prefrontal cortex in dogs was related to deficits in their social behavior, (e.g. aggressive-defensive responses). This study sought to identify the the regions of the SRR circuit, which have been previously individually described in the purpose breed beagle (Burtkowski and Dabrowska, 1966; Kosmal and Nitecka, 1977) and in a novel carnivore model, the spotted hyena. Here we examined subdivisions of the amygdala including: the basomagnocellular, medial amygdala, and lateral amygdala. We found the amygdalar subdivisions in the dog were consistent with previous cytoarchitectonic descriptions for dog amygdala (see Kosmal and Nitecka, 1977). These findings confirm that the cytoarchitecture of amygdala is concurrent with the existing literature. Next, we will continue to describe the remaining regions of the SRR circuit in the dog in order to make future comparisons with other carnivore species that display a range of social behaviors, specifically the spotted hyena.
Examination of the Social Response Reversal Circuit in the Domestic Dog
CSU Ballroom
One aspect of navigating a social environment involves the ability to inhibit inappropriate behaviors. Such inhibition in social situations has been shown to be related to activity in the Social Response Reversal (SRR) circuit (Blair and Cipolotti, 2004). The SRR circuit includes projections from the orbital prefrontal cortex to the amygdala, the medial hypothalamus, and the periaqueductal gray. This neurocircuit is found in most mammalian brains and is related to inhibition control in social situations. Blair and Cipolotti (2004) described this circuit in humans, where it regulates the suppression of aggression. Previously, Brutkowski and Dabrowska (1966) showed that damage to the ventromedial area of the prefrontal cortex in dogs was related to deficits in their social behavior, (e.g. aggressive-defensive responses). This study sought to identify the the regions of the SRR circuit, which have been previously individually described in the purpose breed beagle (Burtkowski and Dabrowska, 1966; Kosmal and Nitecka, 1977) and in a novel carnivore model, the spotted hyena. Here we examined subdivisions of the amygdala including: the basomagnocellular, medial amygdala, and lateral amygdala. We found the amygdalar subdivisions in the dog were consistent with previous cytoarchitectonic descriptions for dog amygdala (see Kosmal and Nitecka, 1977). These findings confirm that the cytoarchitecture of amygdala is concurrent with the existing literature. Next, we will continue to describe the remaining regions of the SRR circuit in the dog in order to make future comparisons with other carnivore species that display a range of social behaviors, specifically the spotted hyena.
Recommended Citation
Davis, Samantha and Joe Zrucky. "Examination of the Social Response Reversal Circuit in the Domestic Dog." Undergraduate Research Symposium, Mankato, MN, April 2, 2019.
https://cornerstone.lib.mnsu.edu/urs/2019/poster-session-A/28
