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fMRI Brain Scans Reveal Differences in Adults Who Have Recovered from Childhood ADHD and Those Who Did Not

By MedImaging International staff writers
Posted on 25 Jun 2014
In the first study to compare patterns of brain activity in adults who recovered from childhood with attention deficit hyperactivity disorder (ADHD) and those who did not, neuroscientists have discovered key differences in a brain communication network that is active when the brain is at wakeful rest and not focused on a particular task. More...
The findings offer evidence of a biologic foundation for adult ADHD and should help to confirm the criteria used to diagnose the disorder, according to the researchers.

About 11% of school-age children in the United States have been diagnosed with ADHD. Whereas many of these children ultimately grow out the disorder, some still have difficulties into adulthood.

Diagnoses of adult ADHD have increased dramatically in the past several years, with symptoms similar to those of childhood ADHD: a general inability to focus reflected in difficulty completing tasks, listening to instructions, or remembering details. “The psychiatric guidelines for whether a person’s ADHD is persistent or remitted are based on lots of clinical studies and impressions. This new study suggests that there is a real biological boundary between those two sets of patients,” said Massachusetts Institute of Technology’s (MIT; Cambridge, MA, USA) John Gabrieli, a professor of brain and cognitive sciences, and an author of the study, which appears in the June 10, 2014, issue of the journal Brain.

This study focused on 35 adults who were diagnosed with ADHD as children; 13 of them still have the disorder, while the rest have recovered. “This sample really gave us a unique opportunity to ask questions about whether or not the brain basis of ADHD is similar in the remitted-ADHD and persistent-ADHD cohorts,” said Aaron Mattfeld, a postdoc at MIT’s McGovern Institute for Brain Research and the study’s lead author.

The researchers used the imaging technique called resting-state functional magnetic resonance imaging (fMRI) to examine what the brain is doing when an individual is not engaged in any specific activity. These patterns reveal which parts of the brain communicate with each other during this type of wakeful rest. “It’s a different way of using functional brain imaging to investigate brain networks,” said Susan Whitfield-Gabrieli, a research scientist at the MIT McGovern Institute and the senior author of the paper. “Here we have subjects just lying in the scanner. This method reveals the intrinsic functional architecture of the human brain without invoking any specific task.”

In people without ADHD, when the mind is unfocused, there is a distinctive synchrony of activity in brain regions known as the default mode network. Earlier research had demonstrated that in children and adults with ADHD, two major hubs of this network—the posterior cingulate cortex and the medial prefrontal cortex—no longer synchronize.

In the new study, the MIT scientists showed for the first time that in adults who had been diagnosed with ADHD as children but no longer have it, this normal synchrony pattern is restored. “Their brains now look like those of people who never had ADHD,” Dr. Mattfeld stated.

“This finding is quite intriguing,” remarked Francisco Xavier Castellanos, a professor of child and adolescent psychiatry at New York University (New York, NY, USA), who was not involved in the research. “If it can be confirmed, this pattern could become a target for potential modification to help patients learn to compensate for the disorder without changing their genetic makeup.”

However, in another measure of brain synchrony, the researchers found much more similarity between both groups of ADHD patients. In individuals without ADHD, when the default mode network is active, another network, called the task positive network, is suppressed. When the brain is performing tasks that require focus, the task positive network takes over and suppresses the default mode network. If this reciprocal association degrades, the ability to focus declines.

Both groups of adult ADHD patients, including those who had recovered, revealed patterns of simultaneous activation of both networks. This is thought to be a sign of impairment in executive function—the management of cognitive tasks—that is separate from ADHD, but occurs in about half of ADHD patients. All of the ADHD patients in this study performed poorly on tests of executive function. “Once you have executive function problems, they seem to hang in there,” stated Dr. Gabrieli, who is a member of the McGovern Institute.

The researchers now plan to investigate how ADHD medications influence the brain's default mode network, in hopes that this might allow them to predict which drugs will work best for individual patients. Currently, about 60% of patients respond well to the first drug they receive. “It’s unknown what’s different about the other 40% or so who don’t respond very much,” Dr. Gabrieli stated. “We’re pretty excited about the possibility that some brain measurement would tell us which child or adult is most likely to benefit from a treatment.”

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Massachusetts Institute of Technology



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82 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
83 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
84 (154.01840209961): SELECT show_live FROM jos_com_show_setting LIMIT 1
85 (31.948089599609): SELECT show_live FROM jos_com_show_setting LIMIT 1
86 (107.0499420166): SELECT show_live FROM jos_com_show_setting LIMIT 1
87 (29.802322387695): SELECT show_live FROM jos_com_show_setting LIMIT 1
88 (582.93342590332): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294753213 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
89 (35.04753112793): SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294753213 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
90 (33.855438232422): SELECT id,name,title FROM jos_deeppockets WHERE cat=10 AND TYPE='file_folder' AND published=1 AND id != 294743300 AND id != 294743301 AND id != 294743302 AND id != 294743303 AND id != 294743304 AND id != 294743305 AND id != 294743306 AND id != 294743307 AND id != 294743308 AND id != 294743309 AND id != 294743310 AND metakey != 'aacc' ORDER BY `ordering`
91 (419.13986206055): SELECT show_live FROM jos_com_show_setting LIMIT 1
92 (71.76399230957): SELECT show_live FROM jos_com_show_setting LIMIT 1
93 (602.00691223145): SELECT show_live FROM jos_com_show_setting LIMIT 1
94 (39.815902709961): SELECT show_live FROM jos_com_show_setting LIMIT 1
95 (29.087066650391): SELECT show_live FROM jos_com_show_setting LIMIT 1
96 (28.133392333984): SELECT show_live FROM jos_com_show_setting LIMIT 1
97 (26.941299438477): SELECT show_live FROM jos_com_show_setting LIMIT 1
98 (28.848648071289): SELECT show_live FROM jos_com_show_setting LIMIT 1
99 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
100 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
101 (59.127807617188): SELECT show_live FROM jos_com_show_setting LIMIT 1
102 (30.040740966797): SELECT show_live FROM jos_com_show_setting LIMIT 1
103 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
104 (28.133392333984): SELECT show_live FROM jos_com_show_setting LIMIT 1
105 (419.85511779785): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
106 (61.988830566406): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
107 (55.074691772461): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294753213 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
108 (571.01249694824): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294753213 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
109 (!!!!! 1188.0397796631): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
110 (77.009201049805): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
111 (440.12069702148): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294753213 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
112 (504.0168762207): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294753213 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
113 (452.04162597656): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1
114 (355.95893859863): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1
115 (102.04315185547): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
116 (50.067901611328): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
117 (46.968460083008): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
118 (40.054321289062): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
119 (45.061111450195): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
120 (37.908554077148): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
121 (44.107437133789): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
122 (38.14697265625): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
123 (169.99244689941): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`
124 (!!!!! 74337.959289551): SELECT * FROM jos_deeppockets WHERE jos_deeppockets.cat = 10 AND jos_deeppockets.type = 'deeppockets_item' AND jos_deeppockets.published = 1 AND jos_deeppockets.created + INTERVAL 14 DAY >= NOW() ORDER BY jos_deeppockets.hits DESC LIMIT 7
125 (!!!!! 1057.8632354736): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294753213 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294753213 AND type='deeppockets_item' AND published='1' LIMIT 1
126 (!!!!! 23524.99961853): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3
127 (60.796737670898): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3
128 (36.001205444336): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803337 LIMIT 1
129 (29.802322387695): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803337 LIMIT 1
130 (38.862228393555): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803276 LIMIT 1
131 (31.948089599609): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803276 LIMIT 1
132 (257.01522827148): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets_archive AS dp WHERE dp.id = 294803276 LIMIT 1
133 (34.809112548828): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets_archive AS dp WHERE dp.id = 294803276 LIMIT 1
134 (30.040740966797): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294802958 LIMIT 1
135 (28.848648071289): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294802958 LIMIT 1
136 (353.09791564941): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
137 (968.93310546875): SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
138 (525.95138549805): SELECT name FROM jos_deeppockets WHERE id=212
139 (!!!!! 2987.1463775635): SELECT name FROM jos_deeppockets WHERE id=212
140 (805.13954162598): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))212((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
141 (!!!!! 3828.0487060547): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))212((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
142 (!!!!! 2403.0208587646): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
143 (274.1813659668): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
144 (!!!!! 10056.018829346): TRUNCATE TABLE jos_trademed_module
145 (164.03198242188): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294753213 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
146 (115.87142944336): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294753213 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
147 (!!!!! 2689.1231536865): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
148 (73.19450378418): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
149 (88.214874267578): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
150 (56.028366088867): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
151 (!!!!! 1141.0713195801): SELECT jos_item.* FROM jos_item INNER JOIN jos_number ON jos_item.numberID=jos_number.id WHERE 1=1 AND (jos_item.imgMini<>'') AND jos_item.type='L' AND jos_item.numberID= ( SELECT jos_number.id FROM jos_number WHERE jos_number.journalID IN (10) and jos_number.id in (select distinct jos_number.id from jos_number join jos_item on jos_item.numberid=jos_number.id where jos_item.type='P') ORDER BY (CONVERT(SUBSTRING(issue,1,2),SIGNED) + (CONVERT(SUBSTRING(issue,3,2),SIGNED)*100)) DESC LIMIT 0,1 ) ORDER BY RAND() DESC LIMIT 6
152 (308.99047851562): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
153 (103.95050048828): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
154 (!!!!! 4683.9714050293): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294753213 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294753213 AND type='deeppockets_item' AND published='1' LIMIT 1
155 (!!!!! 1554.9659729004): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=212 or channel_id is null)
156 (639.91546630859): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=212 or channel_id is null)
157 (52.928924560547): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1
158 (!!!!! 3151.8936157227): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
159 (978.23143005371): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294753213 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294753213 AND published='1' LIMIT 1
160 (!!!!! 3656.8641662598): select jos_twitters.link from jos_twitters where cat=10
161 (144.00482177734): select jos_facebook.link from jos_facebook where cat=10
162 (689.98336791992): select jos_google_plus.link from jos_google_plus where cat=10
163 (!!!!! 1755.952835083): select jos_linkedin.link from jos_linkedin where cat=10