Long-term consequences of switching handedness: a positron emission tomography study on handwriting in "converted" left-handers

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Paper (help)
Long-term consequences of switching handedness: a positron emission tomography study on handwriting in "converted" left-handers
Authors: Hartwig Roman Siebner, Claus Limmer, Alexander Peinemann, Alexander Drzezga, Bastiaan R. Bloem
Citation: The Journal of Neuroscience 22 (7): 2816-2825. 2002 April
Database(s): PubMed (PMID/11923446)
DOI: Define doi.
Link(s): http://neuro.cjb.net/cgi/reprint/22/7/2816.pdf
http://www.jneurosci.org/cgi/reprint/22/7/2816
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Long-term consequences of switching handedness: a positron emission tomography study on handwriting in "converted" left-handers reports a positron emission tomography study with left and right-handed subjects as well as subject that apart from writing with the right hand are mostly left-handed.

Contents

[edit] Subjects

Subject group #1 (help)
Converted left-handers
Subjects/♂/♀: 11 / 7 / 4
Age: 47 (34–64)
Nationality: German
Approval: Ethics Committee of the Faculty of Medicine of the Technische Universität München
Databases:

Group 1 of 11 converted left-handers with 7 males and 4 females were included in the study. The German group had a mean age of 47 with a range from 34 to 64.

The study on the human subjects was approved by the Ethics Committee of the Faculty of Medicine of the Technische Universität München.
Subject group #2 (help)
Right-handed adults
Subjects/♂/♀: 11 / 9 / 2
Age: 42 (26–58)
Nationality: German
Approval: Ethics Committee of the Faculty of Medicine of the Technische Universität München
Databases:

Group 2 of 11 right-handed adults with 9 males and 2 females were included in the study. The German group had a mean age of 42 with a range from 26 to 58.

The study on the human subjects was approved by the Ethics Committee of the Faculty of Medicine of the Technische Universität München.
Subject group #3 (help)
Left handed
Subjects/♂/♀: 6 / 5 / 1
Age: 32 (25–55)
Nationality: German
Approval: Ethics Committee of the Faculty of Medicine of the Technische Universität München
Databases:

Group 3 of 6 left handed with 5 males and 1 females were included in the study. The German group had a mean age of 32 with a range from 25 to 55. The study on the human subjects was approved by the Ethics Committee of the Faculty of Medicine of the Technische Universität München.

[edit] Scanning

PET Scanning (help)
Scanner: Siemens ECAT 951 R/31
Radiotracer: Oxygen-15 Water
Laboratory: missing laboratory

Using the radiotracer Oxygen-15-Water PET scans were acquired with a Siemens ECAT 951 R/31.


[edit] Results

[edit] Right-hand handwriting for innate right-handers

Table 2, part 1 with 7 coordinates

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1 Left primary sensorimotor cortex 3/4 -38 -24 58 7.09 Brede Database Brede Wiki NeuroSynth SumsDB Not available
2 Caudal supplementary motor area 6 -16 -8 56 6.70 Brede Database Brede Wiki NeuroSynth SumsDB Not available
3 Left dorsal premotor cortex 6 -26 -8 60 6.59 Brede Database Brede Wiki NeuroSynth SumsDB Not available
4 Right precuneus 7 18 -64 62 4.3 Brede Database Brede Wiki NeuroSynth SumsDB Not available
5 Left thalamus -12 -22 8 3.70 Brede Database Brede Wiki NeuroSynth SumsDB Not available
6 Right thalamus 14 -18 12 3.64 Brede Database Brede Wiki NeuroSynth SumsDB Not available
7 Right anterior intraparietal sulcus 14 -18 52 3.42 Brede Database Brede Wiki NeuroSynth SumsDB Not available
Entry not completed (help)

[edit] Right-hand handwriting for "converted" left-handers

Table 2, part 2 with 10 coordinates

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[edit] Left-hand writing for innate left-handers

Table 2, part 3 with 8 coordinates

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[edit] Between-group

Table 3, part 1

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Table 3, part 2 with 7 coordinates.

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