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108. Relationship between substantia nigra echogenicity and olfactory dysfunction in idiopathic PD and vascular Parkinsonism
| Content Provider | Semantic Scholar |
|---|---|
| Author | Busse, Knut Gemende, Irene Walter, Uwe |
| Copyright Year | 2009 |
| Abstract | and somatosensory cortex in the electroencephalogram after visualsomatosensory associations had been established. The coherency vanished after an extinction period. Our study aims to gather evidence on the fading of learned crossmodal associations as reflected by the ‘blood oxygenation level dependent’(BOLD) signal in functional magnetic resonance imaging. In alternating stimulus blocks somatosensory-visual associations were learned in a crossmodal spatial attention task (Trenner et al., 2008) or else faded during a unimodal somatosensory attention task. During the unimodal somatosensory blocks the BOLD-signal in visual areas, including V1, was best described by a linear decrease model. This finding provides a first hint that crossmodal cognitive experimental tasks can induce transient crossmodal associations which can be measured by BOLD-imaging but that start fading immediately after the induction stops. |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.clinph.2008.07.107 |
| Volume Number | 120 |
| Alternate Webpage(s) | https://api.elsevier.com/content/article/pii/S1388245708007360 |
| Alternate Webpage(s) | https://www.sciencedirect.com/science/article/pii/S1388245708007360?dgcid=api_sd_search-api-endpoint |
| Alternate Webpage(s) | https://doi.org/10.1016/j.clinph.2008.07.107 |
| Journal | Clinical Neurophysiology |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
