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Träfflista för sökning "WFRF:(Sjöholm H) ;pers:(Ryding Erik)"

Sökning: WFRF:(Sjöholm H) > Ryding Erik

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1.
  • Decety, Jean, et al. (författare)
  • The cerebellum participates in mental activity : tomographic measurements of regional cerebral blood flow
  • 1990
  • Ingår i: Brain Research. - 0006-8993 .- 1872-6240. ; 535:2, s. 313-317
  • Tidskriftsartikel (refereegranskat)abstract
    • Measurements in man of regional cerebral blood flow (rCBF) have demonstrated a number of cortical and subcortical events coupled to sensory stimulation or motor performance. It has also been shown that local activity changes take place in the cortex during 'pure' mental activity such as motor imagery (unaccompanied by sensory input or motor output). Thus, our group has previously shown that imagination of hand movements gives predominantly a frontal cortical rCBF activation while the corresponding hand movement activates the rolandic hand area mainly. In this paper we report tomographic rCBF measurements with a 133-Xenon SPECT technique during imagined tennis movements and silent counting. Both procedures gave rise to a significant cerebellar activation in addition to cortical rCBF changes. Apparently, the cerebellum may participate in pure mental activity. It possibly plays a role for the temporal organization of neuronal events related to cognition.
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2.
  • Ryding, Erik, et al. (författare)
  • Motor imagery activates the cerebellum regionally : a SPECT rCBF study with 99mTc-HMPAO
  • 1993
  • Ingår i: Cognitive Brain Research. - 0926-6410 .- 1872-6348. ; 1:2, s. 94-99
  • Tidskriftsartikel (refereegranskat)abstract
    • Our earlier findings of a cerebellar activation during motor imagery (Brain Res., 535 (1990) 313-317) were made with a technique with low regional resolution. Therefore we could not elucidate the distribution of the cerebellar activation. In the present study the cerebellar regional cerebral blood flow (rCBF) changes during motor imagery (MI) was measured with a single photon emission computed tomography (SPECT) rCBF method (99mTc-HMPAO) with higher regional resolution during (1) silent counting, and (2) MI (which included silent counting) in 17 normal subjects. Comparing the SPECT results from the two tasks revealed the regional activations during MI. We confirmed that the most pronounced regional activations during MI were found in the cerebellum, especially in its infero-lateral parts on both sides.
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  • Resultat 1-2 av 2
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tidskriftsartikel (2)
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refereegranskat (2)
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Ryding, Erik (2)Ta bort avgränsningen
Decety, Jean (2)
Sjöholm, Hans (2)
Stenberg, Georg, 194 ... (2)
Ingvar, David H. (2)
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Högskolan Kristianstad (2)
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Engelska (2)
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