Functional and structural connectivity of frontostriatal circuitry in Autism Spectrum Disorder

Verfasser / Beitragende:
[Sonja Delmonte, Louise Gallagher, Erik O'Hanlon, Jane McGrath, Joshua H. Balsters]
Ort, Verlag, Jahr:
2013
Enthalten in:
Frontiers in Human Neuroscience, 7, p. 430
Format:
Artikel (online)
ID: 528784439
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024 7 0 |a 10.3929/ethz-b-000070634  |2 doi 
024 7 0 |a 10.3389/fnhum.2013.00430  |2 doi 
035 |a (ETHRESEARCH)oai:www.research-collecti.ethz.ch:20.500.11850/70634 
245 0 0 |a Functional and structural connectivity of frontostriatal circuitry in Autism Spectrum Disorder  |h [Elektronische Daten]  |c [Sonja Delmonte, Louise Gallagher, Erik O'Hanlon, Jane McGrath, Joshua H. Balsters] 
246 0 |a Front. hum. neurosci. 
506 |a Open access  |2 ethresearch 
520 3 |a Abnormalities in frontostriatal circuitry potentially underlie the two core deficits in Autism Spectrum Disorder (ASD); social interaction and communication difficulties and restricted interests and repetitive behaviors. Whilst a few studies have examined connectivity within this circuitry in ASD, no previous study has examined both functional and structural connectivity within the same population. The present study provides the first exploration of both functional and structural frontostriatal connectivity in ASD. Twenty-eight right-handed Caucasian male ASD (17.28 ± 3.57 years) and 27 right-handed male, age and IQ matched controls (17.15 ± 3.64 years) took part in the study. Resting state functional connectivity was carried out on 21 ASD and control participants, and tractography was carried out on 22 ASD and 24 control participants, after excluding subjects for excessive motion and poor data quality. Functional connectivity analysis was carried out between the frontal cortex and striatum after which tractography was performed between regions that showed significant group differences in functional connectivity. The ASD group showed increased functional connectivity between regions in the frontal cortex [anterior cingulate cortex (ACC), middle frontal gyrus (MFG), paracingulate gyrus (Pcg) and orbitofrontal cortex (OFC)], and striatum [nucleus accumbens (NAcc) and caudate]. Increased functional connectivity between ACC and caudate was associated with deactivation to social rewards in the caudate, as previously reported in the same participants. Greater connectivity between the right MFG and caudate was associated with higher restricted interests and repetitive behaviors and connectivity between the bilateral Pcg and NAcc, and the right OFC and NAcc, was negatively associated with social and communicative deficits. Although tracts were reliably constructed for each subject, there were no group differences in structural connectivity. Results are in keeping with previously reported increased corticostriatal functional connectivity in ASD. 
540 |a Creative Commons Attribution 3.0 Unported  |u http://creativecommons.org/licenses/by/3.0  |2 ethresearch 
690 7 |a Autism Spectrum Disorder  |2 ethresearch 
690 7 |a Connectivity  |2 ethresearch 
690 7 |a Frontostriatal  |2 ethresearch 
690 7 |a Striatum  |2 ethresearch 
690 7 |a fMRI  |2 ethresearch 
690 7 |a DTI  |2 ethresearch 
690 7 |a Social reward  |2 ethresearch 
700 1 |a Delmonte  |D Sonja  |e joint author 
700 1 |a Gallagher  |D Louise  |e joint author 
700 1 |a O'Hanlon  |D Erik  |e joint author 
700 1 |a McGrath  |D Jane  |e joint author 
700 1 |a Balsters  |D Joshua H.  |e joint author 
773 0 |t Frontiers in Human Neuroscience  |d Lausanne : Frontiers Research Foundation  |g 7, p. 430  |x 1662-5161 
856 4 0 |u http://hdl.handle.net/20.500.11850/70634  |q text/html  |z WWW-Backlink auf das Repository (Open access) 
908 |D 1  |a Journal Article  |2 ethresearch 
950 |B ETHRESEARCH  |P 856  |E 40  |u http://hdl.handle.net/20.500.11850/70634  |q text/html  |z WWW-Backlink auf das Repository (Open access) 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Delmonte  |D Sonja  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Gallagher  |D Louise  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a O'Hanlon  |D Erik  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a McGrath  |D Jane  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Balsters  |D Joshua H.  |e joint author 
950 |B ETHRESEARCH  |P 773  |E 0-  |t Frontiers in Human Neuroscience  |d Lausanne : Frontiers Research Foundation  |g 7, p. 430  |x 1662-5161 
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949 |B ETHRESEARCH  |F ETHRESEARCH  |b ETHRESEARCH  |j Journal Article  |c Open access