Neural bases of focusing attention in working memory : An fMRI study based on group differences
Using fMRI, we investigated neural substrates for focusing attention in working memory. To explore this focusing effect, two kinds of reading span test (RST), focused and nonfocused, were performed. In the focused RST (F-RST), the target word to be maintained was the focus word in the sentence. In t...
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| Veröffentlicht in: | Cognitive, affective, & behavioral neuroscience affective, & behavioral neuroscience, 2007-06, Vol.7 (2), p.130-139 |
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| creator | OSAKA, Mariko KOMORI, Mie MORISHTTA, Masanao OSAKA, Naoyum |
| description | Using fMRI, we investigated neural substrates for focusing attention in working memory. To explore this focusing effect, two kinds of reading span test (RST), focused and nonfocused, were performed. In the focused RST (F-RST), the target word to be maintained was the focus word in the sentence. In the nonfocused RST (NF-RST), the target word was not the focus word in the sentence. In both RST conditions, significant activations were found in three main regions: left dorsolateral prefrontal cortex (DLPFC), anterior cingulate cortex (ACC), and left superior parietal lobule (SPL). In addition, fMRI signal changes increased in the left SPL in the NF-RST condition. These findings suggest that the neural substrates of focusing attention are based on SPL and ACC-DLPFC networks. Furthermore, there were group differences in the focusing effect between high-span and low-span subjects: High-span subjects showed focusing effects (supported by SPL control) greater than those of low-span subjects. |
| doi_str_mv | 10.3758/cabn.7.2.130 |
| format | Article |
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To explore this focusing effect, two kinds of reading span test (RST), focused and nonfocused, were performed. In the focused RST (F-RST), the target word to be maintained was the focus word in the sentence. In the nonfocused RST (NF-RST), the target word was not the focus word in the sentence. In both RST conditions, significant activations were found in three main regions: left dorsolateral prefrontal cortex (DLPFC), anterior cingulate cortex (ACC), and left superior parietal lobule (SPL). In addition, fMRI signal changes increased in the left SPL in the NF-RST condition. These findings suggest that the neural substrates of focusing attention are based on SPL and ACC-DLPFC networks. Furthermore, there were group differences in the focusing effect between high-span and low-span subjects: High-span subjects showed focusing effects (supported by SPL control) greater than those of low-span subjects.</description><identifier>ISSN: 1530-7026</identifier><identifier>EISSN: 1531-135X</identifier><identifier>DOI: 10.3758/cabn.7.2.130</identifier><identifier>PMID: 17672384</identifier><language>eng</language><publisher>Austin, TX: Psychonomic Society</publisher><subject>Adult ; Anatomical correlates of behavior ; Attention - physiology ; Behavioral psychophysiology ; Biological and medical sciences ; Brain Mapping ; Cerebral Cortex - blood supply ; Cerebral Cortex - physiology ; Executive function ; Female ; Functional Laterality ; Fundamental and applied biological sciences. 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To explore this focusing effect, two kinds of reading span test (RST), focused and nonfocused, were performed. In the focused RST (F-RST), the target word to be maintained was the focus word in the sentence. In the nonfocused RST (NF-RST), the target word was not the focus word in the sentence. In both RST conditions, significant activations were found in three main regions: left dorsolateral prefrontal cortex (DLPFC), anterior cingulate cortex (ACC), and left superior parietal lobule (SPL). In addition, fMRI signal changes increased in the left SPL in the NF-RST condition. These findings suggest that the neural substrates of focusing attention are based on SPL and ACC-DLPFC networks. Furthermore, there were group differences in the focusing effect between high-span and low-span subjects: High-span subjects showed focusing effects (supported by SPL control) greater than those of low-span subjects.</description><subject>Adult</subject><subject>Anatomical correlates of behavior</subject><subject>Attention - physiology</subject><subject>Behavioral psychophysiology</subject><subject>Biological and medical sciences</subject><subject>Brain Mapping</subject><subject>Cerebral Cortex - blood supply</subject><subject>Cerebral Cortex - physiology</subject><subject>Executive function</subject><subject>Female</subject><subject>Functional Laterality</subject><subject>Fundamental and applied biological sciences. 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Psychology</topic><topic>Humans</topic><topic>Image Processing, Computer-Assisted - methods</topic><topic>Magnetic Resonance Imaging</topic><topic>Male</topic><topic>Memory</topic><topic>Memory, Short-Term - physiology</topic><topic>Neuropsychological Tests</topic><topic>Oxygen - blood</topic><topic>Psychology. Psychoanalysis. Psychiatry</topic><topic>Psychology. Psychophysiology</topic><topic>Reading</topic><topic>Recognition (Psychology) - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>OSAKA, Mariko</creatorcontrib><creatorcontrib>KOMORI, Mie</creatorcontrib><creatorcontrib>MORISHTTA, Masanao</creatorcontrib><creatorcontrib>OSAKA, Naoyum</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Docstoc</collection><collection>University Readers</collection><collection>Neurosciences Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Premium</collection><collection>MEDLINE - Academic</collection><jtitle>Cognitive, affective, & behavioral neuroscience</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>OSAKA, Mariko</au><au>KOMORI, Mie</au><au>MORISHTTA, Masanao</au><au>OSAKA, Naoyum</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Neural bases of focusing attention in working memory : An fMRI study based on group differences</atitle><jtitle>Cognitive, affective, & behavioral neuroscience</jtitle><addtitle>Cogn Affect Behav Neurosci</addtitle><date>2007-06-01</date><risdate>2007</risdate><volume>7</volume><issue>2</issue><spage>130</spage><epage>139</epage><pages>130-139</pages><issn>1530-7026</issn><eissn>1531-135X</eissn><abstract>Using fMRI, we investigated neural substrates for focusing attention in working memory. To explore this focusing effect, two kinds of reading span test (RST), focused and nonfocused, were performed. In the focused RST (F-RST), the target word to be maintained was the focus word in the sentence. In the nonfocused RST (NF-RST), the target word was not the focus word in the sentence. In both RST conditions, significant activations were found in three main regions: left dorsolateral prefrontal cortex (DLPFC), anterior cingulate cortex (ACC), and left superior parietal lobule (SPL). In addition, fMRI signal changes increased in the left SPL in the NF-RST condition. These findings suggest that the neural substrates of focusing attention are based on SPL and ACC-DLPFC networks. 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| ispartof | Cognitive, affective, & behavioral neuroscience, 2007-06, Vol.7 (2), p.130-139 |
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| subjects | Adult Anatomical correlates of behavior Attention - physiology Behavioral psychophysiology Biological and medical sciences Brain Mapping Cerebral Cortex - blood supply Cerebral Cortex - physiology Executive function Female Functional Laterality Fundamental and applied biological sciences. Psychology Humans Image Processing, Computer-Assisted - methods Magnetic Resonance Imaging Male Memory Memory, Short-Term - physiology Neuropsychological Tests Oxygen - blood Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Reading Recognition (Psychology) - physiology |
| title | Neural bases of focusing attention in working memory : An fMRI study based on group differences |
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