H Tiitinen

Summary

Affiliation: University of Helsinki
Country: Finland

Publications

  1. ncbi request reprint Frequency change detection in human auditory cortex
    P May
    Department of Mathematics, King s College London, Strand, UK
    J Comput Neurosci 6:99-120. 1999
  2. doi request reprint Modeling the categorical perception of speech sounds: a step toward biological plausibility
    Nelli H Salminen
    Helsinki University of Technology, Helsinki, Finland
    Cogn Affect Behav Neurosci 9:304-13. 2009
  3. doi request reprint Cortical sensitivity to periodicity of speech sounds
    Santeri Yrttiaho
    Department of Signal Processing and Acoustics, Helsinki University of Technology, PO Box 3300, FI 02015 TKK, Finland
    J Acoust Soc Am 123:2191-9. 2008
  4. ncbi request reprint The right-hemispheric auditory cortex in humans is sensitive to degraded speech sounds
    Lassi A Liikkanen
    Apperception and Cortical Dynamics ACD, Cognitive Science Unit, Department of Psychology, University of Helsinki, Finland
    Neuroreport 18:601-5. 2007
  5. ncbi request reprint From the repression of contents to the rules of the (narrative) self: a present-day cognitive view of the Freudian phenomenon of repressed contents
    Vesa Talvitie
    Apperception and Cortical Dynamics ACD, Department of Psychology, University of Helsinki, Finland
    Psychol Psychother 79:165-81. 2006
  6. pmc The contribution of high frequencies to human brain activity underlying horizontal localization of natural spatial sounds
    Sakari Leino
    Apperception and Cortical Dynamics ACD, Department of Psychology, University of Helsinki, Finland
    BMC Neurosci 8:78. 2007
  7. ncbi request reprint Periodic glottal excitation and formant frequencies in the perception of vowels
    H Tiitinen
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, Finland
    Neurol Clin Neurophysiol 2004:103. 2004
  8. ncbi request reprint Behavioral detection of spatial stimuli is reflected in auditory cortical dynamics
    H Tiitinen
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, Finland
    Neurol Clin Neurophysiol 2004:50. 2004
  9. pmc Disentangling the effects of phonation and articulation: hemispheric asymmetries in the auditory N1m response of the human brain
    Hannu Tiitinen
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, POB 9, FIN 00014, Finland
    BMC Neurosci 6:62. 2005
  10. ncbi request reprint Neuromagnetic recordings reveal the temporal dynamics of auditory spatial processing in the human cortex
    Hannu Tiitinen
    Apperception and Cortical Dynamics ACD, Cognitive Science, Department of Psychology, P O Box 9, FIN 00014 University of Helsinki, Finland
    Neurosci Lett 396:17-22. 2006

Detail Information

Publications39

  1. ncbi request reprint Frequency change detection in human auditory cortex
    P May
    Department of Mathematics, King s College London, Strand, UK
    J Comput Neurosci 6:99-120. 1999
    ..The experimental results bear out the prediction that MMN is due to both adaptation and lateral inhibition. Finally, we suggest that MMN might serve as a probe of what stimulus features are mapped by human auditory cortex...
  2. doi request reprint Modeling the categorical perception of speech sounds: a step toward biological plausibility
    Nelli H Salminen
    Helsinki University of Technology, Helsinki, Finland
    Cogn Affect Behav Neurosci 9:304-13. 2009
    ..Thus, the present study offers a unifying framework for explaining the neural basis of the warping of perceptual space associated with categorical perception...
  3. doi request reprint Cortical sensitivity to periodicity of speech sounds
    Santeri Yrttiaho
    Department of Signal Processing and Acoustics, Helsinki University of Technology, PO Box 3300, FI 02015 TKK, Finland
    J Acoust Soc Am 123:2191-9. 2008
    ..The behavior of the N1m latency and the emergence of a response cascade at very low F0 values may reflect the lower limit of pitch perception...
  4. ncbi request reprint The right-hemispheric auditory cortex in humans is sensitive to degraded speech sounds
    Lassi A Liikkanen
    Apperception and Cortical Dynamics ACD, Cognitive Science Unit, Department of Psychology, University of Helsinki, Finland
    Neuroreport 18:601-5. 2007
    ..Thus, the auditory cortex of right hemisphere might be particularly involved in processing degraded speech and possibly compensates for the poor signal quality by increasing its activity...
  5. ncbi request reprint From the repression of contents to the rules of the (narrative) self: a present-day cognitive view of the Freudian phenomenon of repressed contents
    Vesa Talvitie
    Apperception and Cortical Dynamics ACD, Department of Psychology, University of Helsinki, Finland
    Psychol Psychother 79:165-81. 2006
    ..It also becomes apparent that certain fundamental problems met in the study of the self are the ones that Freud tried to solve in his meta-psychological writings...
  6. pmc The contribution of high frequencies to human brain activity underlying horizontal localization of natural spatial sounds
    Sakari Leino
    Apperception and Cortical Dynamics ACD, Department of Psychology, University of Helsinki, Finland
    BMC Neurosci 8:78. 2007
    ..Stimuli were presented to the subjects during MEG registration and in a behavioral listening experiment...
  7. ncbi request reprint Periodic glottal excitation and formant frequencies in the perception of vowels
    H Tiitinen
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, Finland
    Neurol Clin Neurophysiol 2004:103. 2004
    ..Thus, changes affecting the perceptual quality of speech signals without changing their phonetic content modify the dynamics of human auditory cortex...
  8. ncbi request reprint Behavioral detection of spatial stimuli is reflected in auditory cortical dynamics
    H Tiitinen
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, Finland
    Neurol Clin Neurophysiol 2004:50. 2004
    ..The behavioral performance of the subjects correlated positively with N100m amplitude organization, showing that the dynamics of auditory cortex predict behavioral sound detection...
  9. pmc Disentangling the effects of phonation and articulation: hemispheric asymmetries in the auditory N1m response of the human brain
    Hannu Tiitinen
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, POB 9, FIN 00014, Finland
    BMC Neurosci 6:62. 2005
    ....
  10. ncbi request reprint Neuromagnetic recordings reveal the temporal dynamics of auditory spatial processing in the human cortex
    Hannu Tiitinen
    Apperception and Cortical Dynamics ACD, Cognitive Science, Department of Psychology, P O Box 9, FIN 00014 University of Helsinki, Finland
    Neurosci Lett 396:17-22. 2006
    ..The latter activations, however, were specific to attentional engagement and motor responding. This suggests that parietal activation reflects active responding to a spatial sound rather than auditory spatial processing as such...
  11. ncbi request reprint Averaged and single-trial brain responses in the assessment of human sound detection
    Hannu Tiitinen
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, PO Box 9, FIN 00014, Finland
    Neuroreport 16:545-8. 2005
    ..The transient response reported here holds promise for rapid, objective hearing assessment not requiring a behavioural task...
  12. ncbi request reprint Electromagnetic recordings reveal latency differences in speech and tone processing in humans
    H Tiitinen
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, PO Box 13 Meritullinkatu 1, FIN 00014, Helsinki, Finland
    Brain Res Cogn Brain Res 8:355-63. 1999
    ..The findings are discussed in relation to previous observations on cortical processing of sinusoidal and vowel sounds and with regard to the glottal excitation in speech processing...
  13. ncbi request reprint Separation of contamination caused by coil clicks from responses elicited by transcranial magnetic stimulation
    H Tiitinen
    Department of Psychology, University of Helsinki, Finland
    Clin Neurophysiol 110:982-5. 1999
    ..Furthermore, clicks were found to interact with simultaneously presented auditory sinewave stimuli, resulting in an amplitude decrease in the auditory N1 response...
  14. ncbi request reprint Scopolamine augments transient auditory 40-hz magnetic response in humans
    J Ahveninen
    Department of Psychology, University of Helsinki, Finland
    Neurosci Lett 277:115-8. 1999
    ..01) augmented the 40-Hz magnetic response over the hemispheres ipsi- and contralateral to the ear stimulated. This finding suggests muscarinic modulation of the auditory evoked transient 40-Hz response...
  15. ncbi request reprint Transient brain responses predict the temporal dynamics of sound detection in humans
    Ville Mäkinen
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, Helsinki FIN 00014, Finland
    Neuroimage 21:701-6. 2004
    ..Thus, noninvasively measured transient events in the human auditory cortex can be used to predict accurately the temporal course of sound detection and may therefore turn out to be useful in clinical settings...
  16. ncbi request reprint Magnetoencephalographic (MEG) localization of the auditory N400m: effects of stimulus duration
    A M Mäkelä
    Department of Phonetics, University of Helsinki, Finland
    Neuroreport 12:249-53. 2001
    ..The differential amplitude behaviour of the N400m between the two subject groups further suggests that comprehension of the semantic content of the speech message is also required...
  17. ncbi request reprint Cortical activity elicited by isolated vowels and diphthongs
    A M Mäkelä
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, Finland
    Neurol Clin Neurophysiol 2004:91. 2004
    ..Notably, the stimuli appeared to elicit left-hemispheric activity resembling the N400, typically obtained by using more complicated speech stimuli such as words and sentences...
  18. ncbi request reprint The auditory n100m response reflects changes in speech fundamental frequency
    A M Mäkelä
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, Finland
    Neurol Clin Neurophysiol 2004:49. 2004
    ..The present observations are interpreted in terms of the interrelatedness of speech production and perception...
  19. ncbi request reprint Benzodiazepine temazepam suppresses the transient auditory 40-Hz response amplitude in humans
    I P Jääskeläinen
    Department of Psychology, University of Helsinki, Finland
    Neurosci Lett 268:105-7. 1999
    ..This suggests involvement of GABA(A) receptors in transient auditory 40-Hz response generation, however, not in the attentive modulation of the 40-Hz response...
  20. ncbi request reprint Suppression of transient 40-Hz auditory response by haloperidol suggests modulation of human selective attention by dopamine D2 receptors
    J Ahveninen
    Cognitive Brain Research Unit, Department of Psychology, PO Box 13, FIN 00014 University of Helsinki, Helsinki, Finland
    Neurosci Lett 292:29-32. 2000
    ..The present result suggests that dopamine D(2) receptors modulate selective attention...
  21. ncbi request reprint Dose-dependent suppression by ethanol of transient auditory 40-Hz response
    I P Jääskeläinen
    Cognitive Brain Research Unit, Department of Psychology, P O Box 13, Meritullinkatu 1, 00014 University of Helsinki, Finland
    Psychopharmacology (Berl) 148:132-5. 2000
    ....
  22. pmc A population rate code of auditory space in the human cortex
    Nelli H Salminen
    Department of Biomedical Engineering and Computational Science, Helsinki University of Technology, Helsinki, Finland
    PLoS ONE 4:e7600. 2009
    ..Previous work on the human auditory cortex has revealed areas specialized in spatial processing but how the neurons in these areas represent the location of a sound source remains unknown...
  23. ncbi request reprint Human cortical dynamics determined by speech fundamental frequency
    Anna Mari Mäkelä
    Apperception and Cortical Dynamics, Department of Psychology, P O Box 13, FIN 00014, University of Helsinki, Finland
    Neuroimage 17:1300-5. 2002
    ....
  24. ncbi request reprint Auditory scene analysis and sensory memory: the role of the auditory N100m
    P J C May
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, Finland
    Neurol Clin Neurophysiol 2004:19. 2004
    ..As the emergence of the SR coincides with the stimuli being perceived as auditory streams, our study suggests that auditory sensory memory as indexed by transient and sustained cortical activity might underlie auditory scene analysis...
  25. ncbi request reprint Auditory evoked responses are additive to brain oscillations
    V T Mäkinen
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, Finland
    Neurol Clin Neurophysiol 2004:45. 2004
    ..When examining evoked brain activity with methods providing simultaneous frequency and time information, emphasizing temporal accuracy is likely to provide more accurate descriptions of non-stationary processes of the human brain...
  26. ncbi request reprint Spectral characterization of ongoing and auditory event-related brain processes
    V T Mäkinen
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, Finland
    Neurol Clin Neurophysiol 2004:104. 2004
    ..Thus, the presented methods enable the straightforward detection of ongoing brain oscillations and their association with event-related power changes...
  27. ncbi request reprint The auditory N1m reveals the left-hemispheric representation of vowel identity in humans
    Anna Mari Mäkelä
    Apperception and Cortical Dynamics, Department of Psychology, Box 9, University of Helsinki, Helsinki, FIN 00014, Finland
    Neurosci Lett 353:111-4. 2003
    ..Thus, direct evidence for the orderly left-hemispheric representation of phonemes in human auditory cortex was found...
  28. ncbi request reprint Visual short-term memory load affects sensory processing of irrelevant sounds in human auditory cortex
    Jussi Valtonen
    Apperception Cortical Dynamics ACD, Department of Psychology, P O Box 9, University of Helsinki, FIN 00014 Helsinki, Finland
    Brain Res Cogn Brain Res 17:358-67. 2003
    ..Thus, it appears that task demands requiring attentional allocation and short-term memory result in interaction across visual and auditory brain areas carrying out the processing of stimulus features...
  29. ncbi request reprint Left-hemispheric brain activity reflects formant transitions in speech sounds
    Anna Mari Mäkelä
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, Helsinki, Finland
    Neuroreport 16:549-53. 2005
    ..Thus, the present study demonstrates how magnetoencephalography can be used to investigate the spatiotemporal evolution in cortical activity related to the various stages of the processing of speech...
  30. ncbi request reprint Glides in speech fundamental frequency are reflected in the auditory N1m response
    Anna Mari Mäkelä
    Apperception and Cortical Dynamics ACD, Department of Psychology, P O Box 9, FIN 00014 University of Helsinki, Finland
    Neuroreport 15:1205-8. 2004
    ..Thus, the speech-specific behavior of the N1m arises out of cortical sensitivity to the acoustic structure of voiced speech, that is to the F0 and its harmonics, which underlie the perception of pitch and intonation in speech...
  31. ncbi request reprint 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...
  32. ncbi request reprint Human cortical processing of auditory events over time
    P May
    Apperception and Cortical Dynamics (ACD, Department of Psychology, University of Helsinki, Finland
    Neuroreport 12:573-7. 2001
    ..Our modelling and experimental results therefore provide evidence that the temporal structure of the auditory environment is decomposed in human auditory cortex by cells performing bandpass filtering on periodic input...
  33. ncbi request reprint Auditory event-related responses are generated independently of ongoing brain activity
    Ville Mäkinen
    Apperception and Cortical Dynamics ACD, Department of Psychology, PO Box 9, FIN 00014 University of Helsinki, Finland
    Neuroimage 24:961-8. 2005
    ..Thus, on the basis of our observations, auditory event-related responses are unique descriptors of neural information processing in humans, generated by processes separate from and additive to ongoing brain activity...
  34. ncbi request reprint The use of stationarity and nonstationarity in the detection and analysis of neural oscillations
    Ville T Mäkinen
    Apperception and Cortical Dynamics, Department of Psychology, PO Box 9, FIN 00014, University of Helsinki, Finland
    Neuroimage 28:389-400. 2005
    ....
  35. ncbi request reprint Human auditory event-related processes in the time-frequency plane
    Ville T Mäkinen
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, Finland
    Neuroreport 15:1767-71. 2004
    ..These results indicate that auditory event-related processes consist not only of the well-established transient responses but also of power reductions of ongoing, non-phase-locked brain processes...
  36. ncbi request reprint The MMN is a derivative of the auditory N100 response
    P J C May
    Apperception and Cortical Dynamics, Department of Psychology, University of Helsinki, Finland
    Neurol Clin Neurophysiol 2004:20. 2004
    ....
  37. ncbi request reprint Cortical processing of speech sounds and their analogues in a spatial auditory environment
    Kalle J Palomäki
    Speech and Hearing Research Group, Department of Computer Science, University of Sheffield, Sheffield, UK
    Brain Res Cogn Brain Res 14:294-9. 2002
    ....
  38. ncbi request reprint Spatial processing in human auditory cortex: the effects of 3D, ITD, and ILD stimulation techniques
    Kalle J Palomäki
    Laboratory of Acoustics and Audio Signal Processing, Helsinki University of Technology, P O Box 3000, FIN 02015 HUT, Finland
    Brain Res Cogn Brain Res 24:364-79. 2005
    ..Thus, the activity taking place already in the auditory cortex predicts behavioral sound detection of spatial stimuli, and the amount of spatial cues embedded in the signal are reflected in the activity of this brain area...
  39. pmc Human posterior auditory cortex gates novel sounds to consciousness
    Iiro P Jaaskelainen
    Massachusetts General Hospital, Massachusetts Institute of Technology, Harvard Medical School, Athinoula A Martinos Center for Biomedical Imaging, Charlestown, MA 02129, USA
    Proc Natl Acad Sci U S A 101:6809-14. 2004
    ..Our converging findings suggest that transient adaptation of feature-specific neurons within human posterior auditory cortex filters superfluous sounds from entering one's awareness...