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The correlation between striatal dopamine D2/D3 receptor availability and verbal intelligence quotient in healthy volunteers.

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Title: The correlation between striatal dopamine D2/D3 receptor availability and verbal intelligence quotient in healthy volunteers.
Authors: Guo JF (AUTHOR), Yang YK (AUTHOR), Chiu NT (AUTHOR), Yeh TL (AUTHOR), Chen PS (AUTHOR), Lee IH (AUTHOR), Chu CL (AUTHOR)
Source: Psychological Medicine. Apr2006, Vol. 36 Issue 4, p547-554. 8p.
Abstract: BACKGROUND: Although a correlation between the central dopaminergic system and intelligence may exist, the results from imaging studies remain inconclusive. The aim of this study was to explore the relationship between striatal dopamine D2/D3 receptor availability and verbal intelligence quotient (VIQ) using single photon emission computed tomography (SPECT). METHOD: Striatal D2/D3 receptor availability of 64 healthy subjects was determined with the [123I]iodobenzamide ([123I]IBZM) ligand. Intelligence quotients (IQs) of the subjects were measured by the Wechsler Adult Intelligence Scale--Revised (WAIS-R). RESULTS: In addition to age, left striatal D2/D3 receptor availability correlated positively with VIQ. In females, left striatal D2/D3 receptor availability was the only variable that correlated significantly with the similarities subtest of VIQ. CONCLUSIONS: There is a relationship between left striatal D2/D3 receptor availability and verbal intelligence, which varies, predominantly in males. [ABSTRACT FROM AUTHOR]
Copyright of Psychological Medicine is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: The correlation between striatal dopamine D2/D3 receptor availability and verbal intelligence quotient in healthy volunteers.
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  Data: <searchLink fieldCode="AR" term="%22Guo+JF%22">Guo JF</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang+YK%22">Yang YK</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chiu+NT%22">Chiu NT</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yeh+TL%22">Yeh TL</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen+PS%22">Chen PS</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lee+IH%22">Lee IH</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chu+CL%22">Chu CL</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Psychological+Medicine%22">Psychological Medicine</searchLink>. Apr2006, Vol. 36 Issue 4, p547-554. 8p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: BACKGROUND: Although a correlation between the central dopaminergic system and intelligence may exist, the results from imaging studies remain inconclusive. The aim of this study was to explore the relationship between striatal dopamine D2/D3 receptor availability and verbal intelligence quotient (VIQ) using single photon emission computed tomography (SPECT). METHOD: Striatal D2/D3 receptor availability of 64 healthy subjects was determined with the [123I]iodobenzamide ([123I]IBZM) ligand. Intelligence quotients (IQs) of the subjects were measured by the Wechsler Adult Intelligence Scale--Revised (WAIS-R). RESULTS: In addition to age, left striatal D2/D3 receptor availability correlated positively with VIQ. In females, left striatal D2/D3 receptor availability was the only variable that correlated significantly with the similarities subtest of VIQ. CONCLUSIONS: There is a relationship between left striatal D2/D3 receptor availability and verbal intelligence, which varies, predominantly in males. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Psychological Medicine is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1017/s0033291705006732
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              Text: Apr2006
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