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| 2. |
- Fischer, Håkan, et al.
(författare)
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Functional neuroanatomy of robbery re-experience: Affective memories studied with PET
- 1996
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Ingår i: NEUROREPORT. - : RAPID SCIENCE PUBLISHERS. - 0959-4965. ; 7:13, s. 2081-2086
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Tidskriftsartikel (refereegranskat)abstract
- USING positron emission tomography (PET) and [O-15]butanol, regional cerebral blood flow (rCBF) was determined in six bank officials during exposure to a video of a jointly experienced armed bank robbery, and a control video. Besides elevating subjective
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| 3. |
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| 4. |
- Furmark, Tomas, et al.
(författare)
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The amygdala and individual differences in human fear conditioning
- 1997
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Ingår i: NEUROREPORT. - : LIPPINCOTT WILLIAMS & WILKINS. - 0959-4965. ; 8:18, s. 3957-3960
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Tidskriftsartikel (refereegranskat)abstract
- WHILE animal research on fear conditioning suggests crucial involvement of the amygdala, this has not been corroborated in humans when using subtractive neuroimaging methodology. Correlation analyses might be more able to reveal relations between individ
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| 5. |
- Sand, Anders, et al.
(författare)
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Processing of unattended, simple negative pictures resists perceptual load
- 2011
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Ingår i: NeuroReport. - 0959-4965 .- 1473-558X. ; 22:7, s. 348-352
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Tidskriftsartikel (refereegranskat)abstract
- As researchers debate whether emotional pictures can be processed irrespective of spatial attention and perceptual load, negative and neutral pictures of simple figure-ground composition were shown at fixation and were surrounded by one, two, or three letters. When participants performed a picture discrimination task, there was evidence for motivated attention; that is, an early posterior negativity (EPN) and late positive potential (LPP) to negative versus neutral pictures. When participants performed a letter discrimination task, the EPN was unaffected whereas the LPP was reduced. Although performance decreased substantially with the number of letters (one to three), the LPP did not decrease further. Therefore, attention to simple, negative pictures at fixation seems to resist manipulations of perceptual load.
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| 6. |
- Wik, G, et al.
(författare)
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Magnetic brain imaging of extinction processes in human classical conditioning
- 1997
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Ingår i: NEUROREPORT. - : RAPID SCIENCE PUBLISHERS. - 0959-4965. ; 8:7, s. 1789-1792
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Tidskriftsartikel (refereegranskat)abstract
- BY recording neuromagnetic events during aversive classical conditioning, we examined the extinction of a previously described conditioned response. Averaging over non-reinforced exposures to the conditioned stimulus revealed magnetic activity in the sec
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| 7. |
- Wik, G, et al.
(författare)
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Magnetic imaging in human classical conditioning
- 1996
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Ingår i: NEUROREPORT. - : RAPID SCIENCE PUBLISHERS. - 0959-4965. ; 7:3, s. 737-740
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Tidskriftsartikel (refereegranskat)abstract
- MAGNETOENCEPHALOGRAPHY (MEG) was recorded during aversive classical conditioning in an attempt to elucidate the temporal coding of primary somatosensory cortex (SI) activation previously found with positron emission tomography. Four healthy volunteers pa
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| 8. |
- Wik, Gustav, et al.
(författare)
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Retrosplenial cortical activation in the fibromyalgia syndrome.
- 2003
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Ingår i: Neuroreport. - : Ovid Technologies (Wolters Kluwer Health). - 0959-4965. ; 14:4, s. 619-21
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Tidskriftsartikel (refereegranskat)abstract
- To study the CNS in chronic muscular pain typical of fibromyalgia we compared PET measures of regional cerebral blood flow (rCBF) in eight fibromyalgic patients and controls at rest. Higher rCBF for patients than controls was found bilaterally in the retrosplenial cortex. Lower rCBF for patients than controls were seen in the left frontal, temporal, parietal, and occipital cortices. The higher retroplenial rCBF in patients than controls may reflect increased attention towards sub-noxious somatosensory signaling, and agrees with the notion that fibromyalgic pain reflects secondary hyperalgesia. The brain regions with lower rCBF in fibromyalgic patients than controls participate in the normal cognitive processing of pain, which may be dysfunctional in fibromyalgia.
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