Title |
Anterior–posterior dissociation of the default mode network in dogs
|
---|---|
Published in |
Brain Structure and Function, January 2014
|
DOI | 10.1007/s00429-013-0700-x |
Pubmed ID | |
Authors |
Sreenath P. Kyathanahally, Hao Jia, Oleg M. Pustovyy, Paul Waggoner, Ronald Beyers, John Schumacher, Jay Barrett, Edward E. Morrison, Nouha Salibi, Thomas S. Denney, Vitaly J. Vodyanoy, Gopikrishna Deshpande |
Abstract |
The default mode network (DMN) in humans has been extensively studied using seed-based correlation analysis (SCA) and independent component analysis (ICA). While DMN has been observed in monkeys as well, there are conflicting reports on whether they exist in rodents. Dogs are higher mammals than rodents, but cognitively not as advanced as monkeys and humans. Therefore, they are an interesting species in the evolutionary hierarchy for probing the comparative functions of the DMN across species. In this study, we sought to know whether the DMN, and consequently its functions such as self-referential processing, are exclusive to humans/monkeys or can we also observe the DMN in animals such as dogs. To address this issue, resting state functional MRI data from the brains of lightly sedated dogs and unconstrained and fully awake dogs were acquired, and ICA and SCA were performed for identifying the DMN. Since anesthesia can alter resting state networks, confirming our results in awake dogs was essential. Awake dog imaging was accomplished by training the dogs to keep their head still using reinforcement behavioral adaptation techniques. We found that the anterior (such as anterior cingulate and medial frontal) and posterior regions (such as posterior cingulate) of the DMN were dissociated in both awake and anesthetized dogs. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 3 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 3 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Hungary | 3 | 4% |
Austria | 2 | 2% |
Turkey | 1 | 1% |
Romania | 1 | 1% |
United States | 1 | 1% |
Unknown | 77 | 91% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 23 | 27% |
Student > Ph. D. Student | 14 | 16% |
Student > Master | 9 | 11% |
Professor > Associate Professor | 6 | 7% |
Student > Bachelor | 5 | 6% |
Other | 16 | 19% |
Unknown | 12 | 14% |
Readers by discipline | Count | As % |
---|---|---|
Neuroscience | 19 | 22% |
Agricultural and Biological Sciences | 15 | 18% |
Psychology | 11 | 13% |
Veterinary Science and Veterinary Medicine | 8 | 9% |
Medicine and Dentistry | 7 | 8% |
Other | 10 | 12% |
Unknown | 15 | 18% |