Kalle Kotilahti

Project Researcher

Research outputs

  1. 2019
  2. Published

    Hemodynamic responses to emotional speech in two-month-old infants imaged using diffuse optical tomography

    Shekhar, S., Maria, A., Kotilahti, K., Huotilainen, M., Heiskala, J., Tuulari, J. J., Hirvi, P., Karlsson, L., Karlsson, H. & Nissilä, I., 1 Dec 2019, In : Scientific Reports. 9, 1, p. 1-15 4745.

    Research output: Contribution to journalArticleScientificpeer-review

  3. 2018
  4. Published

    Emotional Processing in the First 2 Years of Life: A Review of Near-Infrared Spectroscopy Studies

    Maria, A., Shekhar, S., Nissilä, I., Kotilahti, K., Huotilainen, M., Karlsson, L., Karlsson, H. & Tuulari, J. J., 1 Sep 2018, In : Journal of Neuroimaging. 28, 5, p. 441-454 14 p.

    Research output: Contribution to journalReview ArticleScientificpeer-review

  5. Published

    Affective and non-affective touch evoke differential brain responses in 2-month-old infants

    Jönsson, E. H., Kotilahti, K., Heiskala, J., Backlund Wasling, H., Olausson, H., Croy, I., Mustaniemi, H., Hiltunen, P., Tuulari, J. J., Scheinin, N. M. & 3 othersKarlsson, L., Karlsson, H. & Nissilä, I., 1 Apr 2018, In : NeuroImage. 169, p. 162-171 10 p.

    Research output: Contribution to journalArticleScientificpeer-review

  6. 2015
  7. Published

    Functional near-infrared spectroscopy of the neonatal brain: Instrumentation, methods and experiments

    Kotilahti, K., 2015, Aalto University. 132 p.

    Research output: ThesisDoctoral ThesisCollection of Articles

  8. 2014
  9. Published

    Respiratory and non-respiratory arousals induce changes in intracranial oxygenation in sleep disordered patients measured with near-infrared spectroscopy

    Toppila, J., Kotilahti, K., Näsi, T., Virtanen, J., Nissilä, I., Salmi, T. & Bachour, A., Sep 2014, In : Journal of Sleep Research. 23, p. 282-283 2 p.

    Research output: Contribution to journalMeeting AbstractScientificpeer-review

  10. Published

    High-Density Diffuse Optical Imaging of Total Hemoglobin Changes to Emotionally Valenced Speech in Two-Month Old Infants

    Nissilä, I., Shekhar, S., Kotilahti, K., Heiskala, J., Mustaniemi, H., Heino, J., Huotilainen, M. & Karlsson, H., 2014, Biomedical OpticsMiami, Florida United StatesApril 26-30, 2014. Optical Society of America

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  11. 2013
  12. Published

    Effect of task-related extracerebral circulation on diffuse optical tomography: experimental data and simulations on the forehead

    Näsi, T., Mäki, H., Hiltunen, P., Heiskala, J., Nissilä, I., Kotilahti, K. & Ilmoniemi, R. J., 2013, In : Journal of Biomedical Optics. 4, 3, p. 412-426

    Research output: Contribution to journalArticleScientificpeer-review

  13. 2012
  14. Published

    Method for assessing the contribution of systemic circulation in near-infrared spectroscopy signals

    Näsi, T., Mäki, H., Hiltunen, P., Heiskala, J., Nissilä, I., Kotilahti, K. & Ilmoniemi, R., 2012, Mian Long (ed.): IFMBE Proceedings (WC2012, Beijing, China), Vol 39, pages 10301033, 2012. p. 10301033

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  15. 2011
  16. Published

    Accelerometer-based method for correcting signal baseline changes caused by motion artifacts in medical near-infrared spectroscopy

    Virtanen, J., Noponen, T., Kotilahti, K., Virtanen, J. & Ilmoniemi, R. J., 2011, In : Journal of Biomedical Optics. 16, 8, p. 087005

    Research output: Contribution to journalArticleScientificpeer-review

  17. Published

    Magnetic-Stimulation-Related Physiological Artifacts in Hemodynamic Near-Infrared Spectroscopy Signals

    Näsi, T., Kotilahti, K., Mäki, H., Nissilä, I., Haapalahti, P. & Ilmoniemi, R., 2011, In : PloS one. 6, 8, p. 1-8 e24002.

    Research output: Contribution to journalArticleScientificpeer-review

  18. 2010
  19. Published

    Amplitudes of rTMS-evoked NIRS responses correlate with changes in heart rate

    Näsi, T., Mäki, H., Kotilahti, K., Nissilä, I. & Ilmoniemi, R. J., 2010, 29th International Congress of Clinical Neurophysiology, Kobe Japan, October 28 - November 1, 2010. p. S148

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  20. Published

    Characterizing Cerebral and Extracerebral Components in TMS-Evoked Near-Infrared Spectroscopy Signals

    Mäki, H., Näsi, T., Kotilahti, K., Nissilä, I., Meriläinen, P. & Ilmoniemi, R. J., 2010, 17th International Conference on Biomagnetism (Biomag 2010), Dubrovnik, Croatia, 28 Mar - 1 Apr, 2010. Supek, S. & Susac, A. (eds.). p. 88-91

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  21. Published

    Correlation of visual-evoked hemodynamic responses and potentials in human brain

    Näsi, T., Kotilahti, K., Noponen, T., Nissilä, I., Lipiäinen, L. & Meriläinen, P., 2010, In : Experimental Brain Research. 202, 3, p. 561-570

    Research output: Contribution to journalArticleScientificpeer-review

  22. Published

    Effects of improper source coupling in frequency-domain near-infrared spectroscopy

    Noponen, T., Kotilahti, K., Nissila, I., Kajava, T. & Merilainen, P., 2010, In : Physics in Medicine and Biology. 55, 10, p. 2941-2960

    Research output: Contribution to journalArticleScientificpeer-review

  23. Published

    Hemodynamic responses to speech and music in newborn infants

    Kotilahti, K., Nissilä, I., Näsi, T., Lipiäinen, L., Noponen, T., Meriläinen, P., Huotilainen, M. & Fellman, V., 2010, In : Human Brain Mapping. 31, 4, p. 595-603

    Research output: Contribution to journalArticleScientificpeer-review

  24. 2009
  25. Published

    Combining near-infrared spectroscopy with electroencephalography and repetitive transcranial magnetic stimulation

    Näsi, T., Kotilahti, K., Mäki, H., Nissilä, I. & Meriläinen, P., 2009, European Conference on Biomedical Optics (ECBO), Munich, Germany, June 14, 2009. Cubeddu, R. & Hielscher, A. (eds.). Optical Society of America

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  26. Published

    High-density optical probe for functional studies of neonates

    Nissilä, I., Kotilahti, K., Mustaniemi, H., Lajunen, A., Heiskala, J. & Hiltunen, P., 2009, 446. WE-Heraeus-Seminar Optical Imaging of Brain Function, Bad Honnef, Germany, 7.-10. Dec. 2009.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  27. 2008
  28. Published

    Combined NIRS and EEG Studies and the Development of a novel Reconstruction Software for Optical Tomography

    Noponen, T., Näsi, T., Hiltunen, P., Virtanen, J., Kotilahti, K., Lipiäinen, L. & Meriläinen, P., 2008, p. BTuF36/elektr.julkaisu, (OSA Biomedical Optics Topical Meeting and Tabletop Exhibit. St. Petersburg, Florida, USA, 2008).

    Research output: Working paperProfessional

  29. 2007
  30. Published

    Lateralisation in hemodynamic responses to speech and music stimuli measured with near-infrared spectroscopic imaging

    Kotilahti, K., Lipiäinen, L., Näsi, T., Nissilä, I., Noponen, T., Huotilainen, M., Meriläinen, P. & Fellman, V., 2007, 48th Annual Meeting of the European Society for paediatric research, Prague, Czech Republic, 6. - 8.10.2007.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  31. 2006
  32. Published

    Coherences of Slow Oscillations in Near-Infrared Spectroscopy Signals and Other Cardiovascular Parameters

    Näsi, T., Noponen, T., Lipiäinen, L., Paloheimo, M., Kotilahti, K. & Meriläinen, P., 2006, Washington, DC, (OSA Biomedical Topical Meetings and Tabletop Exhibit, Optics in Neuroscience, Fort Lauderdale, Florida, USA, March 19-23, 2006.).

    Research output: Working paperProfessional

  33. Published

    Comparison between a time-domain and a frequency-domain system for optical tomography

    Nissilä, I., Hebden, J. C., Jennions, D., Heino, J., Schweiger, M., Kotilahti, K., Noponen, T., Gibson, A., Järvenpää, S., Lipiäinen, L. & 1 othersKatila, T., 2006, In : Journal of Biomedical Optics. 11

    Research output: Contribution to journalArticleScientificpeer-review

  34. Published

    Evaluation of phase signals in quantitative near-infrared spectroscopy

    Noponen, T., Kajava, T., Nissilä, I., Kotilahti, K. & Meriläinen, P., 2006, Washington, DC, p. ME23, (OSA Biomedical Topical Meetings and Tabletop Exhibit, Optics in Neuroscience, Fort Lauderdale, Florida, USA, March 19-23, 2006.).

    Research output: Working paperProfessional

  35. Published

    Hemodynamic responses to continuous speech and music in the newborn brain

    Kotilahti, K., Huotilainen, M., Nissilä, I., Noponen, T. & Fellman, V., 2006, XVth Biennial International Conference on Infant Studies, Kyoto, Japan, 20.-22.6.2006.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  36. Published

    Low-cost four-wavelength continuous-wave near-infrared spectroscopy instrument for noninvasive studies of the human brain

    Lipiäinen, L., Noponen, T., Kotilahti, K. & Meriläinen, P., 2006, Washington DC, p. Paper ME19, (OSA Biomedical Topical Meeting, Optics in Neuroscience, Fort Lauderdale, Florida, USA, 19.-22.3.2006).

    Research output: Working paperProfessional

  37. Published

    Near-infrared spectroscopic imaging

    Kotilahti, K., Kajava, T., Noponen, T., Heino, J., Nissilä, I. & Katila, T., 2006, Wiley Encyclopedia of Biomedical Engineering. Akay, M. (ed.). Hoboken, NJ, USA: John Wiley & Sons Inc.

    Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

  38. Published

    Newborn brain responds strongly to prosody in continuous speech

    Huotilainen, M., Sambeth, A., Kotilahti, K., Nissilä, I., Seppä, K., Alku, P. & Fellman, V., 2006, (XVth Biennial International Conference on Infant Studies, Kyoto, Japan, 20.-22.6.2006).

    Research output: Working paperProfessional

  39. 2005
  40. Published

    A compact near-infrared sperctroscopic imaging system for non-invasive brain studies

    Lipiäinen, L., Nissilä, I., Noponen, T., Kotilahti, K., Kajava, T., Meriläinen, P. & Katila, T., 2005, p. 252, (XXXIX Annual Conference of the Finnish Physical Society, Espoo, 17.-19.3.2005).

    Research output: Working paperProfessional

  41. Published

    An application of perturbation Monte Carlo in optical tomography

    Heiskala, J., Kotilahti, K. & Nissilä, I., 2005, 27th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS), Shanghai, 1.-4.9.2005. Zhang, Y. T., Xu, L. X., Roux, C., Zhuang, T. G., Tamura, T. & Galiana, H. L. (eds.). Piscataway, New Jersey, USA: IEEE Engineering in Medicine and Biology Society, p. elektroninen

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  42. Published

    Bilateral hemodynamic responses to auditory stimulation in newborn infants

    Kotilahti, K., Nissilä, I., Huotilainen, M., Mäkelä, R., Gavrielides, N., Noponen, T., Bjorkman, P., Fellman, V. & Katila, T., 2005, In : Neuroreport. 16, 12, p. 1373-1377

    Research output: Contribution to journalArticleScientificpeer-review

  43. Published

    Instrumentation and calibration methods for the multichannel measurement of phase and amplitude in optical tomography

    Nissilä, I., Noponen, T., Kotilahti, K., Katila, T., Lipiäinen, L., Tarvainen, T., Schweiger, M. & Arridge, S., 2005, In : Review of Scientific Instruments. 76, p. artikkeli no 044302

    Research output: Contribution to journalArticleScientificpeer-review

  44. Published

    Methods for bilateral haemodynamic activation studies of newborn infants

    Mäkelä, R., Nissilä, I., Huotilainen, M., Kotilahti, K., Gavrielides, N., Noponen, T., Kajava, T. & Katila, T., 2005, p. 24, (Symposium: Human Brain Development, 25.-26.5.2005, Helsinki).

    Research output: Working paperProfessional

  45. Published

    Near-infrared spectroscopic imaging of stimulus-related hemodynamic responses on the neonatal auditory cortices

    Kotilahti, K., Nissilä, I., Mäkelä, R., Noponen, T., Lipiäinen, L., Gavrielides, N., Kajava, T., Huotilainen, M., Fellman, V., Meriläinen, P. & 1 othersKatila, T., 2005, SPIE Photonics West 2005, San Jose, USA 2005. Chance, B., Alfano, R. R., Tromberg, B. J., Tamura, M. & Sevick-Muraca, E. M. (eds.). p. 388-395

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  46. Published

    Perturbation Monte Carlo method in optical imaging

    Heiskala, J., Kotilahti, K. & Nissilä, I., 2005, p. 14, (Programme and abstract book / Symposium: Human Brain Development, May 25-26, 2005, Helsinki).

    Research output: Working paperProfessional

  47. Published

    Simultaneous diffuse near-infrared imaging of hemodynamic and oxygenation changes and electroencephalographic measurements of neuronal activity in the human brain

    Noponen, T., Kicic, D., Kotilahti, K., Kajava, T., Kähkönen, S., Nissilä, I., Meriläinen, P. & Katila, T., 2005, SPIE Photonics West 2005, San Jose, USA 2005. Chance Britton, A. R. R. & Tamura Mamoru, S-M. E. M. (eds.). p. 179-190

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  48. Published

    Studying brain activity noninvasively with a low-cost continuous-wave optical imaging instrument

    Lipiäinen, L., Nissilä, I., Noponen, T., Kotilahti, K., Kajava, T., Meriläinen, P. & Katila, T., 2005, p. 23, (Symposium Human Brain Development, 25.-26.5.2005, Helsinki).

    Research output: Working paperProfessional

  49. 2004
  50. Published

    A comparison between difference data measured with a time-domain and a frequency-domain system for optical tomography

    Nissilä, I., Hebden, J. C., Jennions, D., Heino, J., Schweiger, M., Kotilahti, K., Noponen, T., Gibson, A., Järvenpää, S., Lipiäinen, L. & 1 othersKatila, T., 2004, Espoo, p. 22, (Helsinki University of Technology Publications on; no. TKK-F-A834).

    Research output: Working paperProfessional

  51. Published

    Auditory hemodynamic studies of newborn infants using near-infrared spectroscopic imaging

    Nissilä, I., Kotilahti, K., Huotilainen, M., Mäkelä, R., Lipiäinen, L., Noponen, T., Gavrielides, N., Näätänen, R., Fellman, V. & Katila, T., 2004, p. 1244-1247, (The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Francisco, California, USA, 1.-5.9.2004).

    Research output: Working paperProfessional

  52. Published

    Instrumentation and calibration methods for the multichannel measurement of phase and amplitude in optical tomography

    Nissilä, I., Noponen, T., Kotilahti, K., Tarvainen, T., Schweiger, M., Lipiäinen, L., Arridge, S. & Katila, T., 2004, Espoo, p. 19, (Helsinki University of Technology Publications on Engineering Physics; no. TKK-F-A833).

    Research output: Working paperProfessional

  53. Published

    Multi-channel near-infrared spectroscopy on the human forehead during hypo- and hypercapnia

    Noponen, T., Paloheimo, M., Meriläinen, P., Kajava, T., Kotilahti, K., Nissilä, I. & Katila, T., 2004, p. WF8, (OSA Biomedical Topical Meetings and Tabletop Exhibit, Biomedical Optical Spectroscopy and Diagnostics, Miami Beach, Florida, USA, 14.-17.4.2004).

    Research output: Working paperProfessional

  54. 2003
  55. Published

    Diffuse optical brain imaging of full-term newborn infants

    Kotilahti, K., Nissilä, I., Huotilainen, M., Noponen, T., Katila, T. & Fellman, V., 2003, 44th Annual Meeting of the European Society for Paediatric Research, Bilbao, Spain, 27.-30.9.2003. p. 104

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  56. Published

    Diffuse optical imaging for biomedical applications

    Kotilahti, K., Nissilä, I., Noponen, T., Heino, J., Lipiäinen, L., Kajava, T. & Katila, T., 2003, p. 95, (Northern Optics 2003, The joint conference of the Optical Societies of Denmark, Finland, Norway and Sweden, Espoo, Finland, 16.-18.6.2003).

    Research output: Working paperProfessional

  57. Published

    Near-infrared measurements of hemodynamic and oxygenation changes on the frontal cortex during breath holding, hyperventilation, and natural sleep

    Noponen, T., Kotilahti, K., Toppila, J., Nissilä, I., Salmi, T., Kajava, T. & Katila, T., 2003, Optical Tomography and Spectroscopy of Tissue V, BIOS 2003, Photonics West 2003, 25-31 January 2003, San Jose, CA, USA. Chance, B., Alfano, R., Tromberg, B., Tamura, M. & Sevick-Muraca, E. (eds.). SPIE - The International Society for Optical Engineering, p. 124-133

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  58. Published

    Optical topographic studies of adults and neonates

    Nissilä, I., Kotilahti, K., Noponen, T., Huotilainen, M., Näätänen, R. & Katila, T., 2003, Optical Tomography and Spectroscopy of Tissue V, BIOS 2003, Photonics West, 25-31 January 2003, San Jose, CA, USA. p. 134-144

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  59. 2002
  60. Published

    A method for the measurement of phase with high accuracy in intensity modulated optical imaging

    Nissilä, I., Kotilahti, K., Noponen, T. & Katila, T., 2002, OSA Biomedical Topical Meetings: Advances in Optical Imaging and Photon Migration (AOIPM, Miami Beach, Florida, USA, ), April 7-10, 2002. Washington D.C., USA: Optical Society of America, p. 683-685

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  61. Published

    Instrumentation for Diffuse Optical Imaging in the Frequency Domain

    Noponen, T., Nissilä, I., Heino, J., Kotilahti, K., Kajava, T. & Katila, T., 2002, p. 168, (The XXXVI Annual Conference of the Finnish Physical Society,Joensuu, 14.-16.3.2002).

    Research output: Working paperProfessional

  62. Published

    Instrumentation for the accurate measurement of phase and amplitude in optical tomography

    Nissilä, I., Kotilahti, K., Fallström, K. & Katila, T., 2002, In : Review of Scientific Instruments. 73, 9, p. 3306-3312

    Research output: Contribution to journalArticleScientificpeer-review

  63. Published

    Medical Diffuse Optical Imaging

    Noponen, T., Nissilä, I., Heino, J., Kotilahti, K., Kajava, T. & Katila, T., 2002, p. 143, (The XXXVI Annual Conference of the Finnish Physical Society, Joensuu, 14.-16.3.2002).

    Research output: Working paperProfessional

  64. Published

    Optical Diffusion tomography

    Katila, T., Heino, J., Kajava, T., Kotilahti, K., Noponen, T. & Nissilä, I., 2002, URSI General Assembly, Maastricht, Holland, 17.-24.8.2002. p. 1845

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  65. Published

    Optical measurement of hemodynamic changes in the contralateral motor cortex induced by transcranial magnetic stimulation

    Nissilä, I., Kotilahti, K., Komssi, S., Kähkönen, S., Noponen, T., Ilmoniemi, R. & Katila, T., 2002, 13th Internationational Conference on Biomagnetism, Jena, Saksa, 10.-14.8.2002. p. 851-854

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  66. Published

    Topographical brain activation studies using diffuse optical imaging in the frequency domain

    Noponen, T., Nissilä, I., Kotilahti, K., Heino, J., Kajava, T. & Katila, T., 2002, The Second Joint Meeting of the IEEE Engineering in Medicine and Biology Society and the Biomedical Engineering Society, Westin Galleria Hotel, Houston, Texas, USA, 23-26 lokakuuta, 2002. H. Ghorbel, F. (ed.). Houston, Texas, USA: IEEE Engineering in Medicine and Biology Society, p. 927-928

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

ID: 67949