Placebo-Induced Changes in Spinal Cord Pain Processing

Dagfinn Matre; Kenneth L. Casey; Stein Knardahl

doi:10.1523/JNEUROSCI.4218-05.2006

Article Information

DOI

https://doi.org/10.1523/JNEUROSCI.4218-05.2006

PubMed

16407554

Published By

Society for Neuroscience

History

Received October 4, 2005
Revision received November 22, 2005
Accepted November 23, 2005
First published January 11, 2006.

Version of record published January 11, 2006.

Author Information

Dagfinn Matre1,2,3,
Kenneth L. Casey2,3, and
Stein Knardahl1,4

¹Department of Physiology, National Institute of Occupational Health, N-0033 Oslo, Norway, ²Neurology Research Laboratory, Veterans Affairs Medical Center, and ³Department of Neurology, University of Michigan, Ann Arbor, Michigan 48105, and ⁴Department of Psychology, University of Oslo, N-0317 Oslo, Norway

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Author contributions

Disclosures

Received October 4, 2005.
Revision received November 22, 2005.
Accepted November 23, 2005.

This work was supported by grants from the Norwegian Research Council (D.M.) and the United States Department of Veteran's Affairs (K.L.C.). We are grateful to all of the volunteer participants.
Correspondence should be addressed to Dr. Dagfinn Matre, National Institute of Occupational Health, P.O. Box 8149 Departement, N-0033 Oslo, Norway. E-mail: Dagfinn{at}stami.no.
DOI:10.1523/JNEUROSCI.4218-05.2006
Copyright © 2006 Society for Neuroscience 0270-6474/06/260559-05$15.00/0

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	Abstract	Full	Pdf
Jan 2006	719	127	420
Feb 2006	84	52	84
Mar 2006	58	52	78
Apr 2006	38	44	64
May 2006	26	34	51
Jun 2006	27	22	26
Jul 2006	21	35	41
Aug 2006	24	71	37
Sep 2006	20	51	40
Oct 2006	33	70	66
Nov 2006	18	58	38
Dec 2006	14	63	37
Total 2006	1082	679	982
Jan 2007	14	39	48
Feb 2007	17	71	43
Mar 2007	24	62	45
Apr 2007	16	61	33
May 2007	13	35	22
Jun 2007	10	23	21
Jul 2007	4	27	10
Aug 2007	16	57	13
Sep 2007	23	36	33
Oct 2007	16	46	45
Nov 2007	16	48	26
Dec 2007	10	23	26
Total 2007	179	528	365
Jan 2008	2	24	14
Feb 2008	8	18	19
Mar 2008	17	28	26
Apr 2008	19	30	28
May 2008	12	23	14
Jun 2008	11	29	14
Jul 2008	19	27	23
Aug 2008	13	32	17
Sep 2008	31	29	25
Oct 2008	20	21	17
Nov 2008	18	23	26
Dec 2008	35	17	13
Total 2008	205	301	236
Jan 2009	30	19	14
Feb 2009	9	18	19
Mar 2009	12	16	18
Apr 2009	12	16	15
May 2009	7	28	26
Jun 2009	8	17	17
Jul 2009	12	15	12
Aug 2009	42	15	13
Sep 2009	4	18	22
Oct 2009	30	33	53
Nov 2009	21	28	30
Dec 2009	14	16	21
Total 2009	201	239	260
Jan 2010	11	17	20
Feb 2010	13	18	19
Mar 2010	27	32	48
Apr 2010	31	30	16
May 2010	9	25	13
Jun 2010	3	12	12
Jul 2010	31	28	24
Aug 2010	65	30	24
Sep 2010	12	14	12
Oct 2010	9	20	19
Nov 2010	15	30	25
Dec 2010	10	12	23
Total 2010	236	268	255
Jan 2011	16	18	28
Feb 2011	16	21	23
Mar 2011	34	15	22
Apr 2011	40	10	18
May 2011	23	12	21
Jun 2011	16	14	17
Jul 2011	20	8	13
Aug 2011	33	15	12
Sep 2011	31	21	16
Oct 2011	28	26	16
Nov 2011	27	24	15
Dec 2011	25	31	23
Total 2011	309	215	224
Jan 2012	47	37	33
Feb 2012	33	20	19
Mar 2012	30	23	20
Apr 2012	42	35	19
May 2012	18	23	18
Jun 2012	102	9	9
Jul 2012	18	11	13
Aug 2012	14	5	12
Sep 2012	18	13	14
Oct 2012	24	16	16
Nov 2012	41	11	17
Dec 2012	43	8	13
Total 2012	430	211	203
Jan 2013	20	9	7
Feb 2013	21	5	8
Mar 2013	40	10	19
Apr 2013	35	4	17
May 2013	26	23	17
Jun 2013	13	6	4
Jul 2013	17	3	7
Aug 2013	9	4	13
Sep 2013	10	6	6
Oct 2013	22	15	9
Nov 2013	19	10	10
Dec 2013	15	5	3
Total 2013	247	100	120
Jan 2014	24	25	12
Feb 2014	20	12	41
Mar 2014	25	14	25
Apr 2014	26	13	6
May 2014	18	5	5
Jun 2014	17	7	2
Jul 2014	34	12	6
Aug 2014	31	5	12
Sep 2014	27	11	10
Oct 2014	16	6	7
Nov 2014	37	9	11
Dec 2014	17	7	8
Total 2014	292	126	145
Jan 2015	33	15	9
Feb 2015	22	11	6
Mar 2015	31	9	12
Apr 2015	17	2	5
May 2015	19	4	4
Jun 2015	11	4	8
Jul 2015	18	6	8
Aug 2015	21	6	6
Sep 2015	25	7	4
Oct 2015	16	9	16
Nov 2015	23	7	10
Dec 2015	24	5	7
Total 2015	260	85	95
Jan 2016	35	8	16
Feb 2016	34	9	10
Mar 2016	25	13	17
Apr 2016	32	14	17
May 2016	30	7	16
Jun 2016	21	13	7
Jul 2016	22	4	6
Aug 2016	19	14	10
Sep 2016	21	16	6
Oct 2016	16	11	20
Nov 2016	9	19	63
Dec 2016	3	21	59
Total 2016	267	149	247
Jan 2017	9	55	85
Feb 2017	6	31	40
Mar 2017	7	36	53
Apr 2017	2	21	54
May 2017	0	55	23
Jun 2017	4	24	13
Jul 2017	1	20	22
Aug 2017	1	14	12
Sep 2017	7	29	21
Oct 2017	7	45	15
Nov 2017	7	29	15
Dec 2017	0	28	9
Total 2017	51	387	362
Jan 2018	2	27	39
Feb 2018	3	28	16
Mar 2018	3	50	17
Apr 2018	4	19	14
May 2018	4	40	16
Jun 2018	0	28	34
Jul 2018	1	29	17
Aug 2018	3	21	13
Sep 2018	3	33	8
Oct 2018	3	36	30
Nov 2018	0	38	19
Dec 2018	1	29	8
Total 2018	27	378	231
Jan 2019	3	12	10
Feb 2019	2	30	9
Mar 2019	8	31	12
Apr 2019	2	36	7
May 2019	4	33	14
Jun 2019	5	25	11
Jul 2019	1	21	7
Aug 2019	5	11	4
Sep 2019	4	22	9
Oct 2019	7	29	18
Nov 2019	2	30	18
Dec 2019	6	15	12
Total 2019	49	295	131
Jan 2020	6	31	11
Feb 2020	7	19	7
Mar 2020	3	45	12
Apr 2020	3	31	9
May 2020	8	40	16
Jun 2020	6	25	4
Jul 2020	2	31	2
Aug 2020	1	28	7
Sep 2020	7	49	18
Oct 2020	3	64	13
Nov 2020	8	38	8
Dec 2020	11	45	15
Total 2020	65	446	122
Jan 2021	6	49	10
Feb 2021	6	34	14
Mar 2021	7	37	15
Apr 2021	4	34	18
May 2021	6	30	34
Jun 2021	4	19	16
Jul 2021	5	27	14
Aug 2021	4	32	21
Sep 2021	4	27	16
Oct 2021	6	42	26
Nov 2021	10	38	25
Dec 2021	4	42	10
Total 2021	66	411	219
Jan 2022	4	28	9
Total 2022	4	28	9
Total	3970	4846	4206