T Ruusuvirta

Summary

Affiliation: University of Turku
Country: Finland

Publications

  1. pmc Auditory cortical and hippocampal-system mismatch responses to duration deviants in urethane-anesthetized rats
    Timo Ruusuvirta
    Department of Psychology, University of Turku, Turku, Finland
    PLoS ONE 8:e54624. 2013
  2. doi request reprint Mismatch negativity of higher amplitude for melodic ascendance than descendance
    Timo T Ruusuvirta
    Turku Institute for Advanced Studies, University of Turku, Finland
    Neuroreport 23:220-3. 2012
  3. pmc Atypical perceptual narrowing in prematurely born infants is associated with compromised language acquisition at 2 years of age
    Eira Jansson-Verkasalo
    Faculty of Humanities, Logopedics, University of Oulu, Finland
    BMC Neurosci 11:88. 2010
  4. doi request reprint Hippocampus responds to auditory change in rabbits
    T Ruusuvirta
    Turku Institute for Advanced Studies, Centre for Cognitive Neuroscience, Department of Behavioural Sciences and Philosophy, Assistentinkatu 7, FIN 20014 University of Turku, Turku, Finland
    Neuroscience 170:232-7. 2010
  5. doi request reprint Numerical discrimination in newborn infants as revealed by event-related potentials to tone sequences
    Timo Ruusuvirta
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Helsinki, Finland
    Eur J Neurosci 30:1620-4. 2009
  6. ncbi request reprint From spatial acoustic changes to attentive behavioral responses within 200 ms in humans
    T Ruusuvirta
    Department of Psychology, University of Jyvaskyla, Finland
    Neurosci Lett 275:49-52. 1999
  7. ncbi request reprint Mismatch negativity for item rather than serial-order information in a 150-ms tone series that is not repeated as a melodic pattern
    T Ruusuvirta
    Cognitive Brain Research Unit, Department of Psychology, P O Box 9, Siltavuorenpenger 20C, 00014 University of Helsinki, Helsinki, Finland
    Neuroscience 147:968-73. 2007
  8. ncbi request reprint ERP and EOG responses elicited by deviant tones when presented with and without standard tones to reading subjects
    T Ruusuvirta
    Department of Psychology, University of Jyvaskyla, Jyvaskyla, Finland
    Int J Psychophysiol 42:279-86. 2001
  9. doi request reprint Dose-related effects of memantine on a mismatch negativity-like response in anesthetized rats
    D Tikhonravov
    Neuroscience Unit, Institute of Biomedicine Physiology, University of Helsinki, Helsinki, Finland
    Neuroscience 167:1175-82. 2010
  10. ncbi request reprint Auditory cortical event-related potentials to pitch deviances in rats
    T Ruusuvirta
    University of Jyvaskyla, Department of Psychology, Finland
    Neurosci Lett 248:45-8. 1998

Collaborators

Detail Information

Publications15

  1. pmc Auditory cortical and hippocampal-system mismatch responses to duration deviants in urethane-anesthetized rats
    Timo Ruusuvirta
    Department of Psychology, University of Turku, Turku, Finland
    PLoS ONE 8:e54624. 2013
    ..Most importantly, the responses appeared in both the auditory-cortical and hippocampal locations. The findings suggest that the hippocampus may play a role in (cortical) manifestation of MMN...
  2. doi request reprint Mismatch negativity of higher amplitude for melodic ascendance than descendance
    Timo T Ruusuvirta
    Turku Institute for Advanced Studies, University of Turku, Finland
    Neuroreport 23:220-3. 2012
    ..In the same-rate condition, ERPs did not distinguish between the tones. The findings associate the melodic MMN asymmetry with the neural detection of oddball tones in particular...
  3. pmc Atypical perceptual narrowing in prematurely born infants is associated with compromised language acquisition at 2 years of age
    Eira Jansson-Verkasalo
    Faculty of Humanities, Logopedics, University of Oulu, Finland
    BMC Neurosci 11:88. 2010
    ..To address this question, we investigated early neurophysiological phoneme discrimination abilities and later language skills in prematurely born infants and in healthy, full-term infants...
  4. doi request reprint Hippocampus responds to auditory change in rabbits
    T Ruusuvirta
    Turku Institute for Advanced Studies, Centre for Cognitive Neuroscience, Department of Behavioural Sciences and Philosophy, Assistentinkatu 7, FIN 20014 University of Turku, Turku, Finland
    Neuroscience 170:232-7. 2010
    ..No significant differences in response amplitudes were observed between the control-deviant and the standard. These findings suggest that the hippocampus plays a role in auditory change detection...
  5. doi request reprint Numerical discrimination in newborn infants as revealed by event-related potentials to tone sequences
    Timo Ruusuvirta
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Helsinki, Finland
    Eur J Neurosci 30:1620-4. 2009
    ..The findings suggest very early sensitivity to auditory numerical information in infancy...
  6. ncbi request reprint From spatial acoustic changes to attentive behavioral responses within 200 ms in humans
    T Ruusuvirta
    Department of Psychology, University of Jyvaskyla, Finland
    Neurosci Lett 275:49-52. 1999
    ..The results are discussed in the context of endogenous ERPs and of attentive processes across sensory modalities...
  7. ncbi request reprint Mismatch negativity for item rather than serial-order information in a 150-ms tone series that is not repeated as a melodic pattern
    T Ruusuvirta
    Cognitive Brain Research Unit, Department of Psychology, P O Box 9, Siltavuorenpenger 20C, 00014 University of Helsinki, Helsinki, Finland
    Neuroscience 147:968-73. 2007
    ..MMN generation in the human brain thus seems to be based on item rather than serial-order information in a rapid spectro-temporal pattern of acoustic signals that is not repeated frequently in the short term...
  8. ncbi request reprint ERP and EOG responses elicited by deviant tones when presented with and without standard tones to reading subjects
    T Ruusuvirta
    Department of Psychology, University of Jyvaskyla, Jyvaskyla, Finland
    Int J Psychophysiol 42:279-86. 2001
    ..The results suggest that reading is a sufficiently demanding task to enable the subject to effectively ignore the oddball-deviants but not the alone-deviants...
  9. doi request reprint Dose-related effects of memantine on a mismatch negativity-like response in anesthetized rats
    D Tikhonravov
    Neuroscience Unit, Institute of Biomedicine Physiology, University of Helsinki, Helsinki, Finland
    Neuroscience 167:1175-82. 2010
    ..The high dose of memantine, in contrast, blocked the generation of the auditory MMN-like response. The findings suggest that memantine may, with appropriate doses, facilitate already this early stage of auditory processing...
  10. ncbi request reprint Auditory cortical event-related potentials to pitch deviances in rats
    T Ruusuvirta
    University of Jyvaskyla, Department of Psychology, Finland
    Neurosci Lett 248:45-8. 1998
    ....
  11. ncbi request reprint Proactive interference of a sequence of tones in a two-tone pitch comparison task
    T Ruusuvirta
    Department of Psychology, University of Jyvaskyla, Finland
    Psychon Bull Rev 7:327-31. 2000
    ..The results support earlier hypotheses, presented in the context of retroactive interference, by demonstrating proactive interference of a tone sequence at the level of representations of individual tones...
  12. ncbi request reprint The fast detection of rare auditory feature conjunctions in the human brain as revealed by cortical gamma-band electroencephalogram
    T Ruusuvirta
    Cognitive Brain Research Unit, Department of Psychology, Siltavuorenpenger 20 C, P O Box 9, University of Helsinki, 00014 Helsinki, Finland
    Neuroscience 130:91-4. 2005
    ..Our finding suggests that, perhaps with the support of its non-phase-locked synchrony in the gamma band, the human brain is able to detect rare sounds as feature conjunctions very rapidly...
  13. ncbi request reprint Differences in pitch between tones affect behaviour even when incorrectly identified in direction
    T Ruusuvirta
    Department of Psychology, University of Jyvaskyla, PO Box 35, 40351, Jyvaskyla, Finland
    Neuropsychologia 39:876-9. 2001
    ..The first hypothesis was supported in the sense that stimulus differences might affect behaviour even without their successful attentive processing in normal participants...
  14. ncbi request reprint Evidence of the origin of specific spontaneous head turns during intertrial intervals
    T Korhonen
    Department of Psychology, University of Jyvaskyla, Finland
    Integr Physiol Behav Sci 32:123-30. 1997
    ....
  15. ncbi request reprint Somatosensory event-related potentials in the rabbit cerebral and cerebellar cortices: a correspondence with mismatch responses in humans
    P Astikainen
    Department of Psychology, University of Jyvaskyla, P O Box 35, SF 40351, Jyvaskyla, Finland
    Neurosci Lett 298:222-4. 2001
    ..Thus, ERPs to oddball-deviants contributing these differences were dependent on the presence of preceding standards. The results are in line with the elicitation of mismatch negativity-like ERPs to somatosensory changes in humans...