Athanasios Protopapas

Image of Athanasios Protopapas
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Phone +47 22857705
Room 426
Visiting address Sem Sælands vei 7 Helga Engs hus 0371 Oslo
Postal address Postboks 1140 Blindern 0318 Oslo

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  • Doctor of Philosophy in Cognitive Science, Brown University, Providence, Rhode Island, USA, 1997
  • Master of Science in Engineering, Brown University, Providence, Rhode Island, USA, 1995.
  • Master of Science in Cognitive Science, Brown University, Providence, Rhode Island, USA, 1993.
  • University degree, Department of Physics, University of Patras, Greece, 1991.

Postdoctoral employment

  • Professor, Department of Special Needs Education, University of Oslo, since August 2016.
  • Associate Professor of Cognitive Science, Department of Philosophy and History of Science, University of Athens, Greece, June 2010–July 2016.
  • Principal Researcher, Institute for Language & Speech Processing. September 2000–June 2010.
  • Visiting research scholar, Department of Cognitive & Neural Systems, Boston University. May–July 2005.
  • Visiting research scholar, LRDC, Department of Psychology, University of Pittsburgh. February–April 2005.
  • Software development consultant, Neuroscience Solutions Corporation (now PositScience corporation; San Francisco, California, USA). January–July 2004.
  • Postdoctoral fellow, Institute for Language & Speech Processing. February 1999–August 2000.
  • Research consultant, Scientific Learning Corporation (Berkeley, California, USA). January–December 1999.
  • Operations Manager, Scientific Learning Corporation, May 1997–March 1998.
  • Research scientist, Scientific Learning Corporation, July 1996–December 1998.

Teaching experience

Current research interests

I am primarily interested in understanding the development and cognitive mechanisms of word reading fluency, focusing on topics such as:

  • rapid serial naming tasks as models of fluency
  • implicit orthographic learning and visual word recognition
  • cognitive skills specifically underlying fluent reading
  • simultaneous cascaded processing of multiple elements in reading words and lists
  • the eye-voice span and other eye-tracking measures as indexes of fluency
  • lexical, sublexical, and practice effects on visual word recognition and lexical access
  • relationships of word reading fluency with decoding and text comprehension

I am also interested in methodological issues including experimental design in behavioral and eye-tracking studies, statistical modeling and data analysis, measurement, and psychoeducational assessment.

Professional affiliations

  • Current member of the Society for the Scientific Study of Reading (since 2005; voting member since 2007; board member 2011–2013) and Fellow of the Psychonomic Society (since 2018)
  • Previously member of the American Psychological Association (1998–2018), and the Cognitive Science Society (1998–2018).
  • Associate Editor of the Journal of Experimental Psychology: Human Perception and Performance (since 2019) and PLOS One (2019–2020).
  • Member of the editorial board of Scientific Studies of Reading (since 2010) and Reading &Writing (since 2013).



International peer-reviewed journal publications prior to 2017

Protopapas, A., Panagaki, E., Andrikopoulou, A., Gutiérrez Palma, N., & Arvaniti, A. (2016). Priming stress patterns in word recognition. Journal of Experimental Psychology: Human Perception & Performance, 42, 11, 1739–1760.
Protopapas, A., Orfanidou, E., Taylor, J. S. H., Karavasilis, E., Kapnoula, E. C., Panagiotaropoulou, G., Velonakis, G., Poulou, L. S., Smyrnis, N., & Kelekis, D. (2016). Evaluating cognitive models of visual word recognition using fMRI: Effects of lexical and sublexical variables. NeuroImage, 128, 328–341.
Protopapas, A., & Kapnoula, E. C. (2016). Short-term and long-term effects on visual word recognition. Journal of Experimental Psychology: Learning, Memory, and Cognition, 42, 4, 542–565.
Protopapas, A., Parrila, R., & Simos, P. G. (2016). In search of Matthew effects in reading. Journal of Learning Disabilities, 49, 5, 499–514.
Protopapas, A., Cheimariou, S., Economou, A., Kakavoulia, M., & Varlokosta, S. (2016). Functional categories related to verb inflection are not differentially impaired in Greek aphasia. Language and Cognition, 8, 1, 124–141.
Anastasiou, D., & Protopapas, A. (2015). Difficulties in lexical stress versus difficulties in segmental phonology among adolescents with dyslexia. Scientific Studies of Reading, 19, 31–50.
Protopapas, A., Vlahou, E. L., Moirou, D., & Ziaka, L. (2014). Word reading practice reduces Stroop interference in children. Acta Psychologica, 148, 204–208.
Protopapas, A. (2014). From temporal processing to developmental language disorders: Mind the gap. Philosophical Transactions of the Royal Society B: Biological Sciences 369, 1634, 20130090.
Fotiadis, F. A., & Protopapas, A. (2014). The effect of newly trained verbal and nonverbal labels for the cues in probabilistic category learning. Memory and Cognition, 42, 1, 112–125.
Protopapas, A., Altani, A., & Georgiou, G. K. (2013). Development of serial processing in reading and rapid naming. Journal of Experimental Child Psychology, 116, 4, 914–929.
Protopapas, A., Altani, A., & Georgiou, G. K. (2013). RAN backward: A test of the visual scanning hypothesis. Scientific Studies of Reading, 17, 6, 453–461.
Nikolinakos, D., Georgiadou, A., Protopapas, A., Tzavaras, A., & Potagas, C. (2013). A case of color-taste synesthesia. Neurocase, 19, 3, 282–294.
Protopapas, A., Fakou, A., Drakopoulou, S., Skaloumbakas, C., & Mouzaki, A. (2013). What do spelling errors tell us? Classification and analysis of spelling errors made by Greek schoolchildren with and without dyslexia. Reading & Writing: An Interdisciplinary Journal, 26, 5, 615–646.
Protopapas, A., Mouzaki, A., Sideridis, G. D., Kotsolakou, A., & Simos, P. G. (2013). The role of vocabulary in the context of the simple view of reading. Reading & Writing Quarterly, 29, 2, 168–202.
Protopapas, A., Tzakosta, M., Chalamandaris, A., & Tsiakoulis, P. (2012). IPLR: An online resource for Greek word-level and sublexical information. Language Resources & Evaluation, 46, 3, 449–459.
Vlahou, E., Protopapas, A., & Seitz, A. R. (2012). Implicit training of non-native speech stimuli. Journal of Experimental Psychology: General, 141, 2, 363–381.
Protopapas, A., Simos, P. G., Sideridis, G. D., & Mouzaki, A. (2012). The components of the simple view of reading: A confirmatory factor analysis. Reading Psychology, 33, 3, 217–240.
Simos, P. G., Sideridis, G. D., Protopapas, A., & Mouzaki, A. (2011). Psychometric evaluation of a receptive vocabulary test for Greek elementary students. Assessment for Effective Intervention, 37, 1, 34–49.
Protopapas, A., Sideridis, G. D., Mouzaki, A., & Simos, P. G. (2011). Matthew effects in reading comprehension: myth or reality? Journal of Learning Disabilities, 44, 5, 402–420.
Georgiou, G. K., Protopapas. A., Papadopoulos, T. C., Skaloumbakas, C., & Parrila, R. (2010). Auditory temporal processing and dyslexia in an orthographically consistent language. Cortex, 46, 10, 1330–1344.
Seitz, A. R., Protopapas, A., Tsushima, Y., Vlahou, E. L., Gori, S., Grossberg, S., & Watanabe, T. (2010). Unattended exposure to components of speech sounds yields same benefits as explicit auditory training. Cognition, 115, 3, 432–443.
Protopapas, A., & Gerakaki, S. (2009). Development of processing stress diacritics in reading Greek. Scientific Studies of Reading, 13, 6, 453–483.
Protopapas, A., & Vlahou, E. L. (2009). A comparative quantitative analysis of Greek orthographic transparency. Behavior Research Methods, 41, 4, 991–1008.
Protopapas, A., Skaloumbakas, C., & Bali, P. (2008). Validation of unsupervised computer-based screening for reading disability in the Greek elementary Grades 3 and 4. Learning Disabilities: A Contemporary Journal, 6, 1, 45–69.
Protopapas, A. (2007). CheckVocal: A program to facilitate checking the accuracy and response time of vocal responses from DMDX. Behavior Research Methods, 39, 4, 859–862.
Protopapas, A., Gerakaki, S., & Alexandri, S. (2007). Sources of information for stress assignment in reading Greek. Applied Psycholinguistics, 28, 4, 695–720.
Protopapas, A., Archonti, A., & Skaloumbakas, C. (2007). Reading ability is negatively related to Stroop interference. Cognitive Psychology, 54, 3, 251–282.
Protopapas, A., Sideridis, G. D., Simos, P. G., & Mouzaki, A. (2007). Development of lexical mediation in the relation between reading comprehension and word reading skills in Greek. Scientific Studies of Reading, 11, 3, 165–197.
Protopapas, A., & Skaloumbakas, C. (2007). Traditional and computer-based screening and diagnosis of reading disabilities in Greek. Journal of Learning Disabilities, 40, 1, 15–36.
Protopapas, A., Gerakaki, S., & Alexandri, S. (2006). Lexical and default stress assignment in reading Greek. Journal of Research in Reading, 29, 4, 418–432.
Sideridis, G. D., Mouzaki, A., Simos, P., & Protopapas, A. (2006). Classification of students with reading comprehension difficulties: The roles of motivation, affect, and psychopathology. Learning Disability Quarterly, 29, 3, 159–180.
Varlokosta, S., Valeonti, N., Kakavoulia, M., Lazaridou, M., Economou, A., & Protopapas, A. (2006). The breakdown of functional categories in Greek aphasia: Evidence from agreement, tense and aspect. Aphasiology, 20, 8, 723–743.
Protopapas, A. (2006). On the use and usefulness of stress diacritics in reading Greek. Reading and Writing: An Interdisciplinary Journal, 19, 2, 171–198.
B. D. McCandliss, J. A. Fiez, A. Protopapas, M. Conway, & J. L. McClelland (2002). Success and failure in teaching the [r]-[l] contrast to Japanese adults: Tests of a Hebbian model of plasticity and stabilization of spoken language perception. Cognitive, Affective, and Behavioral Neuroscience, 2, 2, 89–108.
R. M. Uchanski, A. E. Geers, & A. Protopapas (2002). The intelligibility of modified speech for young listeners with normal and impaired hearing. The Journal of Speech, Language, and Hearing Research, 45, 5, 1027–1038.
E. Ahissar, S. Nagarajan, M. Ahissar, A. Protopapas, & M. M. Merzenich (2001). Speech comprehension is correlated with temporal response patterns recorded from auditory cortex. Proceedings of the National Academy of Sciences of the U.S.A., 98, 23, 13367–13372.
R. A. Poldrack, E. Temple, A. Protopapas, S. Nagarajan, P. Tallal, M. M. Merzenich, & J. D. E. Gabrieli (2001). Relations between the neural bases of dynamic auditory processing and phonological processing: Evidence from fMRI. Journal of Cognitive Neuroscience, 13, 687–697.
E. Temple, J. D. E. Gabrieli, A. Protopapas, S. Nagarajan, T. Salz, P. Tallal, M. M. Merzenich, & R. A. Poldrack (2000). Disruption of the neural response to rapidly transient acoustic stimuli in dyslexia: Evidence from fMRI. Proceedings of the National Academy of Sciences of the U.S.A., 97, 25, 13907–13912.
M. Ahissar, A. Protopapas, M. Reid, & M. M. Merzenich (2000). Auditory processing parallels reading abilities in adults. Proceedings of the National Academy of Sciences of the U.S.A., 97, 12, 6832–6837.
A. Protopapas (1999). Connectionist modeling of speech perception. Psychological Bulletin, 125, 4, 410–436.
A. Protopapas, S. A. Finney, & P. D. Eimas (1999). Baseline conditions in structural induction: Comments on Pitt, Smith, & Klein (1998). Journal of Experimental Psychology: Human Perception and Performance, 25, 5, 1472–1475.
E. R. Pickett, E. Kuniholm, A. Protopapas, J. Friedman, & P. Lieberman (1998). Selective speech motor, syntax, and cognitive deficits associated with bilateral damage to the putamen and the head of the caudate nucleus: a case study. Neuropsychologia, 36, 2, 173–188.
A. Protopapas & P. D. Eimas (1997). Perceptual differences in infant cries revealed by modifications of acoustic features. The Journal of the Acoustical Society of America, 102, 6, 3723–3734.
A. Protopapas & P. Lieberman (1997). Fundamental frequency of phonation and perceived emotional stress. The Journal of the Acoustical Society of America, 101, 4, 2267–2277.
S. A. Finney, A. Protopapas, & P. D. Eimas (1996). Attentional allocation to syllables in American English. Journal of Memory and Language, 35, 893–909.
P. Lieberman, A. Protopapas, & B. G. Kanki (1995). Speech production and syntax comprehension deficits on Mt. Everest. Aviation, Space, and Environmental Medicine, 66, 857–864.
P. Lieberman, A. Protopapas, B. G.Kanki, E. Reed, & J. W.Youngs (1994). Cognitive defects at altitude. Nature, 372, 325.




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  • Varlokosta, Spyridoula; Stamouli, Spyridoula; Karasimos, Athanasios; Markopoulos, Georgios; Kakavoulia, Maria & Nerantzini, Michaela [Show all 10 contributors for this article] (2016). A Greek Corpus of Aphasic Discourse: Collection, Transcription, and Annotation Specifications. Linköping Electronic Conference Proceedings. ISBN 978-91-7685-730-4. 8 p.

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  • Altani, Angeliki; Katsamanis, Athanasios; Kouzelis, Theodoros; Voukelatou, Danai; Zelihic, Dzan & Simonsen, Kristin [Show all 8 contributors for this article] (2022). Temporal Eye-Voice Span in Naming Tasks as an Index of Cascading Efficiency.
  • Ziaka, Laoura; Katsamanis, Athanasios & Protopapas, Athanassios (2022). Eye-Voice Span in Single Item and Multi Item Stroop Tasks: Tracking Within Task Alterations.
  • Simonsen, Kristin; Altani, Angeliki; Zelihic, Dzan; Ziaka, Laoura; Braze, David & Protopapas, Athanassios (2022). Development of two tests of reading comprehension efficiency.
  • Zelihic, Dzan; Ziaka, Laoura; McMurray, Bob; Apfelbaum, Keith; Simonsen, Kristin & Protopapas, Athanassios (2022). Interference from adjacent items in automatic word recognition: Effects of lexicality and visual complexity.
  • Protopapas, Athanassios; Katopodi, Katerina; Altani, Angeliki; Ziaka, Laoura & Georgiou, George K (2022). Articulation rate and cognitive demands in serial naming and reading.
  • Protopapas, Athanassios & Simonsen, Kristin (2021). Skolecasten 1.10. Better reading. [Internet].
  • Varlokosta, Spyridoula; Stamouli, Spyridoula; Karasimos, Athanasios; Markopoulos, Georgios; Kakavoulia, Maria & Nerantzini, Michaela [Show all 10 contributors for this article] (2016). A Greek corpus of aphasic discourse: Collection, transcription, and annotation specifications.

View all works in Cristin

Published Aug. 17, 2016 3:12 PM - Last modified Apr. 21, 2022 8:41 AM