K Alho

Summary

Affiliation: University of Helsinki
Country: Finland

Publications

  1. ncbi Preattentive processing of complex sounds in the human brain
    K Alho
    Department of Psychology, University of Helsinki, Finland
    Neurosci Lett 233:33-6. 1997
  2. ncbi Selective tuning of the left and right auditory cortices during spatially directed attention
    K Alho
    Cognitive Brain Research Unit, Department of Psychology, P O Box 13, FIN 00014 University of Helsinki, Helsinki, Finland
    Brain Res Cogn Brain Res 7:335-41. 1999
  3. ncbi Brain activity index of distractibility in normal school-age children
    V Gumenyuk
    Cognitive Brain Research Unit, Department of Psychology, P O Box 13, FIN 00014, University of Helsinki, Finland
    Neurosci Lett 314:147-50. 2001
  4. ncbi Processing of novel sounds and frequency changes in the human auditory cortex: magnetoencephalographic recordings
    K Alho
    Department of Psychology, University of Helsinki, Finland
    Psychophysiology 35:211-24. 1998
  5. ncbi Combined mapping of human auditory EEG and MEG responses
    M Huotilainen
    Department of Psychology, University of Helsinki, Finland
    Electroencephalogr Clin Neurophysiol 108:370-9. 1998
  6. ncbi Electrophysiological evidence for cross-modal plasticity in humans with early- and late-onset blindness
    T Kujala
    Department of Psychology, University of Helsinki, Finland
    Psychophysiology 34:213-6. 1997
  7. ncbi Hemispheric lateralization in preattentive processing of speech sounds
    K Alho
    Department of Psychology, University of Helsinki, Finland
    Neurosci Lett 258:9-12. 1998
  8. ncbi Electromagnetic responses of the human auditory cortex generated by sensory-memory based processing of tone-frequency changes
    O Korzyukov
    Department of Psychology, University of Helsinki, Finland
    Neurosci Lett 276:169-72. 1999
  9. ncbi Brain dysfunction in neonates with cleft palate revealed by the mismatch negativity
    M Cheour
    Department of Psychology, University of Helsinki, Finland
    Clin Neurophysiol 110:324-8. 1999
  10. ncbi Modulation of slow brain potentials by working memory load in spatial and nonspatial auditory tasks
    P Rama
    Institute of Biomedicine, Department of Physiology, University of Helsinki, Finland
    Neuropsychologia 38:913-22. 2000

Collaborators

Detail Information

Publications29

  1. ncbi Preattentive processing of complex sounds in the human brain
    K Alho
    Department of Psychology, University of Helsinki, Finland
    Neurosci Lett 233:33-6. 1997
    ..Even undetected deviant patterns of the attended ear and deviant patterns of the unattended ear elicited the mismatch negativity component of the ERP. These results indicate preattentive processing of complex sounds in the human brain...
  2. ncbi Selective tuning of the left and right auditory cortices during spatially directed attention
    K Alho
    Cognitive Brain Research Unit, Department of Psychology, P O Box 13, FIN 00014 University of Helsinki, Helsinki, Finland
    Brain Res Cogn Brain Res 7:335-41. 1999
    ....
  3. ncbi Brain activity index of distractibility in normal school-age children
    V Gumenyuk
    Cognitive Brain Research Unit, Department of Psychology, P O Box 13, FIN 00014, University of Helsinki, Finland
    Neurosci Lett 314:147-50. 2001
    ..Moreover, differences in ERP amplitudes and in their correlations with the reaction times between younger (7-10 years) and older (11-13 years) children indicated developmental changes in attentional brain functions...
  4. ncbi Processing of novel sounds and frequency changes in the human auditory cortex: magnetoencephalographic recordings
    K Alho
    Department of Psychology, University of Helsinki, Finland
    Psychophysiology 35:211-24. 1998
    ..Source localization for the MEG counterpart of P3a (P3am) suggested that the auditory cortex in the superior temporal plane is involved in the neural network of involuntary attention switching to changes in the acoustic environment...
  5. ncbi Combined mapping of human auditory EEG and MEG responses
    M Huotilainen
    Department of Psychology, University of Helsinki, Finland
    Electroencephalogr Clin Neurophysiol 108:370-9. 1998
    ..In addition, source-current components not detectable by MEG were shown to contribute to the measured EEG signals...
  6. ncbi Electrophysiological evidence for cross-modal plasticity in humans with early- and late-onset blindness
    T Kujala
    Department of Psychology, University of Helsinki, Finland
    Psychophysiology 34:213-6. 1997
    ..These results suggest that cross-modal reorganization may occur even in the mature human brain...
  7. ncbi Hemispheric lateralization in preattentive processing of speech sounds
    K Alho
    Department of Psychology, University of Helsinki, Finland
    Neurosci Lett 258:9-12. 1998
    ....
  8. ncbi Electromagnetic responses of the human auditory cortex generated by sensory-memory based processing of tone-frequency changes
    O Korzyukov
    Department of Psychology, University of Helsinki, Finland
    Neurosci Lett 276:169-72. 1999
    ..This supports the idea that a sensory-memory trace formed in the auditory cortex by preceding repetitive sounds is a necessary precondition for MMN/MMNm elicitation...
  9. ncbi Brain dysfunction in neonates with cleft palate revealed by the mismatch negativity
    M Cheour
    Department of Psychology, University of Helsinki, Finland
    Clin Neurophysiol 110:324-8. 1999
    ..The present study aimed at investigating whether the MMN is attenuated already in newborns with cleft palate compared with healthy controls...
  10. ncbi Modulation of slow brain potentials by working memory load in spatial and nonspatial auditory tasks
    P Rama
    Institute of Biomedicine, Department of Physiology, University of Helsinki, Finland
    Neuropsychologia 38:913-22. 2000
    ..The results suggest that there is integration of auditory information processing in the neuronal networks engaged in mnemonic processing of pitch and location...
  11. ncbi Language-specific phoneme representations revealed by electric and magnetic brain responses
    R Naatanen
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Finland
    Nature 385:432-4. 1997
    ..Whole-head magnetic recordings located the source of this native-language, phoneme-related response enhancement, and thus the language-specific memory traces, in the auditory cortex of the left hemisphere...
  12. ncbi Fast vigilance decrement in closed head injury patients as reflected by the mismatch negativity (MMN)
    M L Kaipio
    Department of Psychology, University of Helsinki, Finland
    Neuroreport 12:1517-22. 2001
    ..However, the MMN amplitude for the pitch deviant decreased in the patient group during the experiment considerably faster than in controls, suggesting a faster vigilance decrement in the patients...
  13. ncbi Effects of acoustic gradient noise from functional magnetic resonance imaging on auditory processing as reflected by event-related brain potentials
    N Novitski
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Finland
    Neuroimage 14:244-51. 2001
    ..In conclusion, the present results suggest that in fMRI the background noise does not interfere with the imaging of auditory processing related to involuntary attention...
  14. ncbi Lateralized automatic auditory processing of phonetic versus musical information: a PET study
    M Tervaniemi
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Finland
    Hum Brain Mapp 10:74-9. 2000
    ..The data thus indicate that automatic activation of lateralized neuronal circuits requires sound comparison based on short-term sound representations...
  15. ncbi Harmonic partials facilitate pitch discrimination in humans: electrophysiological and behavioral evidence
    M Tervaniemi
    Department of Psychology, University of Helsinki, Finland
    Neurosci Lett 279:29-32. 2000
    ..Together these data indicate that pre-attentive and attentive pitch discrimination is facilitated with spectrally rich sounds in comparison to pure sinusoidal tones...
  16. ncbi Maturation of mismatch negativity in infants
    M Cheour
    Department of Psychology, University of Helsinki, Finland
    Int J Psychophysiol 29:217-26. 1998
    ..The mean MMN latency, however, decreased significantly with age, although in 3-month-old infants it was not much longer than in a previous study conducted in adults with the same stimuli...
  17. ncbi The musical brain: brain waves reveal the neurophysiological basis of musicality in human subjects
    M Tervaniemi
    Department of Psychology, University of Helsinki, Finland
    Neurosci Lett 226:1-4. 1997
    ....
  18. ncbi Dysfunction of the auditory cortex persists in infants with certain cleft types
    R Ceponiene
    Department of Psychology, University of Helsinki, Finland
    Dev Med Child Neurol 42:258-65. 2000
    ..This pattern parallels known behavioural differences between children with these cleft types. Brain responses to rare sounds, in contrast, had no differentiative power with respect to the cleft type...
  19. ncbi Are different kinds of acoustic features processed differently for speech and non-speech sounds?
    M Jaramillo
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, PO Box 13, FIN 00014, Helsinki, Finland
    Brain Res Cogn Brain Res 12:459-66. 2001
    ..This result might reflect enhanced processing of duration features in the Finnish language in which phoneme duration plays a critical role...
  20. ncbi Basic auditory dysfunction in dyslexia as demonstrated by brain activity measurements
    T Kujala
    Department of Psychology, University of Helsinki, Finland
    Psychophysiology 37:262-6. 2000
    ..This failure can be traced to early cortical mechanisms that process auditory information independently of attention...
  21. ncbi The mismatch negativity (MMN) in basic research of central auditory processing: a review
    R Naatanen
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Helsinki, Finland
    Clin Neurophysiol 118:2544-90. 2007
    ..In addition, the MMN enables one to establish the brain processes underlying the initiation of attention switch to, conscious perception of, sound change in an unattended stimulus stream...
  22. ncbi Effects of naltrexone and ethanol on auditory event-related brain potentials
    I P Jääskeläinen
    Department of Psychology, University of Helsinki, Finland
    Alcohol 15:105-11. 1998
    ..Furthermore, the N2b amplitude was significantly suppressed in the interaction condition, suggesting attentional impairment...
  23. ncbi Electrophysiological evidence of enhanced distractibility in ADHD children
    V Gumenyuk
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Helsinki, Finland
    Neurosci Lett 374:212-7. 2005
    ..In conclusion, the ERP and behavioral effects caused by the novel sounds reveal deficient control of involuntary attention in ADHD children that may underlie their abnormal distractibility...
  24. ncbi Mismatch negativity--the measure for central sound representation accuracy
    R Naatanen
    Department of Psychology, University of Helsinki, Finland
    Audiol Neurootol 2:341-53. 1997
    ..This accuracy, which can be measured separately for the different features of the sound, determines the individual's sound discrimination accuracy in normal and various pathological conditions...
  25. ncbi Enhanced brain activity preceding voluntary movement in early blind humans
    A Lehtokoski
    Department of Psychology, University of Helsinki, Finland
    Neurosci Lett 253:155-8. 1998
    ..The results suggest functional changes in the blind subjects' brain activity, presumably, in the cortical areas involved in preparation and initiation of voluntary movement...
  26. ncbi Memory traces for words as revealed by the mismatch negativity
    F Pulvermuller
    Cognition and Brain Sciences Unit, Medical Research Council, Cambridge CB2 2EF, United Kingdom
    Neuroimage 14:607-16. 2001
    ..Using whole-head magnetoencephalography, the major intracranial source of this word-related MMN was found in the left superior temporal lobe...
  27. ncbi Phonological aspects of word recognition as revealed by high-resolution spatio-temporal brain mapping
    J F Connolly
    Department of Psychology, Life Sciences Centre, Dalhousie University, Halifax, NS, Canada
    Neuroreport 12:237-43. 2001
    ..The current results provide the initial evidence for the localization of the intra-cranial generator(s) involved in phonological analysis...
  28. ncbi Intracranial identification of an electric frontal-cortex response to auditory stimulus change: a case study
    A Liasis
    Department of Clinical Neurophysiology, Hospital for Children, Great Ormond Street, WC1N 3JH, London, UK
    Brain Res Cogn Brain Res 11:227-33. 2001
    ..We conclude that right lateral prefrontal cortex (Brodmann's area 45) is involved in early stages of processing repeating sounds and sound changes...
  29. ncbi Cerebral mechanisms underlying orienting of attention towards auditory frequency changes
    E Yago
    Neurodynamics Laboratory, Department of Psychiatry and Clinical Psychobiology, University of Barcelona, P. Vall d'Hebron 171, 08035-Barcelona, Catalonia, Spain
    Neuroreport 12:2583-7. 2001
    ....