Eero Pekkonen

Summary

Affiliation: Helsinki University Central Hospital
Country: Finland

Publications

  1. ncbi Magnetoencephalographic evidence of abnormal auditory processing in amyotrophic lateral sclerosis with bulbar signs
    Eero Pekkonen
    Department of Neurology, Helsinki University Central Hospital, Helsinki, Finland
    Clin Neurophysiol 115:309-15. 2004
  2. ncbi Impaired temporal lobe processing of preattentive auditory discrimination in schizophrenia
    Eero Pekkonen
    Department of Neurology, University of Helsinki, Finland
    Schizophr Bull 28:467-74. 2002
  3. ncbi Delayed auditory processing underlying stimulus detection in Down syndrome
    Eero Pekkonen
    Department of Neurology, University of Helsinki, Finland
    Neuroimage 35:1547-50. 2007
  4. ncbi Effects of scopolamine on MEG spectral power and coherence in elderly subjects
    Daria Osipova
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, P O Box 9 00014, Helsinki, Finland
    Clin Neurophysiol 114:1902-7. 2003
  5. ncbi Cholinergic modulation of preattentive auditory processing in aging
    Eero Pekkonen
    Department of Neurology, University of Helsinki, PO Box 340, FIN 00029 HUS, Finland
    Neuroimage 27:387-92. 2005
  6. ncbi Dopamine modulates involuntary attention shifting and reorienting: an electromagnetic study
    Seppo Kahkonen
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Helsinki, Finland
    Clin Neurophysiol 113:1894-902. 2002
  7. ncbi Enhanced magnetic auditory steady-state response in early Alzheimer's disease
    Daria Osipova
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Finland
    Clin Neurophysiol 117:1990-5. 2006
  8. ncbi Source estimation of spontaneous MEG oscillations in mild cognitive impairment
    Daria Osipova
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Helsinki, Finland
    Neurosci Lett 405:57-61. 2006
  9. ncbi Modulation of somatosensory evoked fields from SI and SII by acute GABA A-agonism and paired-pulse stimulation
    Juha Huttunen
    BioMag Laboratory, Engineering Centre, University of Helsinki, Helsinki, Finland
    Neuroimage 40:427-34. 2008
  10. ncbi Altered generation of spontaneous oscillations in Alzheimer's disease
    Daria Osipova
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Finland
    Neuroimage 27:835-41. 2005

Detail Information

Publications18

  1. ncbi Magnetoencephalographic evidence of abnormal auditory processing in amyotrophic lateral sclerosis with bulbar signs
    Eero Pekkonen
    Department of Neurology, Helsinki University Central Hospital, Helsinki, Finland
    Clin Neurophysiol 115:309-15. 2004
    ..Besides motor neuron damage, conscious auditory processing appears to be impaired in ALS, whereas it has remained ambiguous whether preceding automatic auditory processing is abnormal in ALS and specifically in ALS with bulbar signs...
  2. ncbi Impaired temporal lobe processing of preattentive auditory discrimination in schizophrenia
    Eero Pekkonen
    Department of Neurology, University of Helsinki, Finland
    Schizophr Bull 28:467-74. 2002
    ..These results suggest that patients with schizophrenia have impaired auditory processing in the temporal lobes underlying preattentive stimulus discrimination that is also selectively delayed in the left hemisphere...
  3. ncbi Delayed auditory processing underlying stimulus detection in Down syndrome
    Eero Pekkonen
    Department of Neurology, University of Helsinki, Finland
    Neuroimage 35:1547-50. 2007
    ..Given that anticholinergic drugs modulate AEFs, degeneration of cholinergic system in DS could contribute to the damaged auditory processing...
  4. ncbi Effects of scopolamine on MEG spectral power and coherence in elderly subjects
    Daria Osipova
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, P O Box 9 00014, Helsinki, Finland
    Clin Neurophysiol 114:1902-7. 2003
    ..In order to test the sensitivity of spectral power and hemispheric coherence to changes in cholinergic transmission, we evaluated quantitative magnetoencephalogram (MEG) after intravenous injection of scopolamine...
  5. ncbi Cholinergic modulation of preattentive auditory processing in aging
    Eero Pekkonen
    Department of Neurology, University of Helsinki, PO Box 340, FIN 00029 HUS, Finland
    Neuroimage 27:387-92. 2005
    ..The combined MEG/EEG measurements using particularly auditory N100 response might offer an objective tool to monitor cholinergic activity in aging and Alzheimer's disease (AD)...
  6. ncbi Dopamine modulates involuntary attention shifting and reorienting: an electromagnetic study
    Seppo Kahkonen
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Helsinki, Finland
    Clin Neurophysiol 113:1894-902. 2002
    ..Dopaminergic function has been closely associated with attentional performance, but its precise role has remained elusive...
  7. ncbi Enhanced magnetic auditory steady-state response in early Alzheimer's disease
    Daria Osipova
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Finland
    Clin Neurophysiol 117:1990-5. 2006
    ..We studied the auditory steady-state response (SSR) which represents the net effect of entrained background activity and superimposed cortical evoked responses, in AD patients and healthy controls...
  8. ncbi Source estimation of spontaneous MEG oscillations in mild cognitive impairment
    Daria Osipova
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Helsinki, Finland
    Neurosci Lett 405:57-61. 2006
    ..Deficits in the distribution of oscillatory sources in the resting state are thus likely to occur at later stages of cognitive impairment than MCI...
  9. ncbi Modulation of somatosensory evoked fields from SI and SII by acute GABA A-agonism and paired-pulse stimulation
    Juha Huttunen
    BioMag Laboratory, Engineering Centre, University of Helsinki, Helsinki, Finland
    Neuroimage 40:427-34. 2008
    ..The lack of PPD modulation of N20m by lorazepam suggests that paired-pulse depression of the first cortical excitatory response (N20m) may be caused by mechanisms other than GABA A receptor-mediated inhibition...
  10. ncbi Altered generation of spontaneous oscillations in Alzheimer's disease
    Daria Osipova
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Finland
    Neuroimage 27:835-41. 2005
    ....
  11. ncbi Auditory discrimination after left-hemisphere stroke: a mismatch negativity follow-up study
    Titta-Maria Ilvonen
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Finland
    Stroke 34:1746-51. 2003
    ..CONCLUSIONS: These results suggest that the MMN can be used as an index of the recovery of auditory discrimination...
  12. ncbi Aging and cholinergic modulation of the transient magnetic 40-Hz auditory response
    Jyrki Ahveninen
    Cognitive Brain Research Unit, Department of Neurology, University of Helsinki, FIN 00014 Helsinki, Finland
    Neuroimage 15:153-8. 2002
    ..In sum, the transient magnetic 40-Hz auditory response may be useful in studies on brain cholinergic deficits in elderly subjects...
  13. ncbi Somatomotor mu rhythm amplitude correlates with rigidity during deep brain stimulation in Parkinsonian patients
    Katja Airaksinen
    BioMag Laboratory, HUSLAB, Helsinki University Central Hospital, Helsinki, Finland
    Clin Neurophysiol 123:2010-7. 2012
    ..We studied whether cortical spontaneous activity is modified by deep brain stimulation (DBS) in advanced Parkinson's disease and if the modifications are related to the clinical symptoms...
  14. ncbi Dynamic neural activity recorded from human amygdala during fear conditioning using magnetoencephalography
    Sandra N Moses
    Department of Psychology, University of New Mexico, Albuquerque, NM 87109, USA
    Brain Res Bull 71:452-60. 2007
    ..The amygdala also shows stimulus omission-related activation that could potentially provide feedback about experienced stimulus contingencies to modify future responding during learning and extinction...
  15. ncbi The interplay of lorazepam-induced brain oscillations: microstructural electromagnetic study
    Alexander A Fingelkurts
    BM Science Brain and Mind Technologies Research Centre, Espoo, Finland
    Clin Neurophysiol 115:674-90. 2004
    ....
  16. ncbi Local and remote functional connectivity of neocortex under the inhibition influence
    Andrew A Fingelkurts
    BM Science Brain and Mind Technologies Research Centre, Espoo, Finland
    Neuroimage 22:1390-406. 2004
    ..It was shown that GABA signaling reorganized the dynamics of local neuronal populations and the remote functional connectivity between them...
  17. ncbi Enhancement of GABA-related signalling is associated with increase of functional connectivity in human cortex
    Andrew A Fingelkurts
    BM-Science Brain and Mind Technologies Research Centre, Espoo, Finland
    Hum Brain Mapp 22:27-39. 2004
    ..These results suggest that inhibition can be an efficient mechanism for synchronization of large neuronal populations...
  18. ncbi Effects of an acute D2-dopaminergic blockade on the somatosensory cortical responses in healthy humans: evidence from evoked magnetic fields
    Juha Huttunen
    BioMag Laboratory, Medical Engineering Centre Department of Clinical Neurophysiology, Helsinki University Central Hospital, P O Box 340, FIN 00029 HUS
    Neuroreport 14:1609-12. 2003
    ..05). Responses arising from SII were not significantly changed. The results suggest that dopaminergic activity may be involved in modulating somatosensory processing after the initial stages of cortical activation...