Skip to main content
Log in

PET studies of language: An assessment of the reliability of the technique

  • Published:
Journal of Psycholinguistic Research Aims and scope Submit manuscript

Abstract

In order to understand the basis of language in the brain, we must be able to describe the neurological systems that are used in language comprehension and production. In this paper, one technique for functional neuroimaging is discussed: measurement of blood flow change using positron emission tomography (PET). Two experiments were carried out investigating the usefulness of this method. One experiment examined the intrinsic time limitations of blood flow change as a measure of cognitive activity. A second issue considered is the replicability of the results obtained using this method. A comparison of two experiments containing the same conditions suggests that the results are replicable, when the experiments and method are similar. One case is discussed where the experiments differ; it is suggested that this is due to a difference in the materials used in the experiments, and that the difference has a principled basis.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Andreasen, N. C., O'Leary, D. S., Hurtig, R., Watkins, D. L., Ponto, B., Argenyi, E., & Hichwa, R. D. (1993). Effects of language and directed attention on regional cerebral blood flow assessed by PET using [15O]H2O.Journal of Cerebral Blood Flow and Metabolism, 13, (Suppl. 1), S516.

    PubMed  Google Scholar 

  • Bench, C. D., Frith, C. D., Grasby, P. M., Friston, K. J., Paulesu, E., Frackowiak, R. S. J. & Dolan, R. J. (1991). Investigations of the functional anatomy of attention using the Stroop task.Neuropsychologia, 31, 907–922.

    Article  Google Scholar 

  • Bohm, C., Greitz, T., Seitz, R., & Eriksson, L. (1991). Specification and selection of regions of interest (ROIs) in a computerized brain atlas.Journal of Cerebral Blood Flow and Metabolism, 11, A64–68.

    PubMed  Google Scholar 

  • Caplan, D. (1987).Neurolinguistics and linguistic aphasiology. Cambridge, England: Cambridge University Press.

    Google Scholar 

  • Cardebat, D., Celsis, P., Puel, M., Doyon, B., & Viallard, G. (1991). Cerebral blood flow correlates of phonological and semantic verbal fluency performances in demented patients.Journal of Neurolinguistics, 6, 345–359.

    Article  Google Scholar 

  • Castan, P., Celsis, P., Viallard, G., Cardebat, G., Demonet, J. F., Puel, P., & Marc-Vergnes, J. P. (1993). Changes in cerebral blood flow during the memorization of a list of words by patients with a left thalamic lesion.Journal of Cerebral Blood Flow and Metabolism, 13, (Suppl 1), S517.

    Google Scholar 

  • Celsis, P., Agniel, A., Démonet, J. F., & Marc-Vergnes, J.-P. (1991). Cerebral blood flow correlates of word list learning.Journal of Neurolinguistics, 6, 253–272.

    Article  Google Scholar 

  • Cherry, S. R., Woods, R. P., Huang, S.-C., & Mazziotta, J. C. (1993). Activation mapping from projection data.Journal of Cerebral Blood Flow and Metabolism, 13, (Suppl 1), S273.

    Google Scholar 

  • Corbetta, M., Miezin, F. M., Dobmeyer, S., Shulman, G. I., & Petersen, S. E. (1991). Selective and divided attention during visual discriminations of shape, color and speed: Functional anatomy by positron emission tomography.The Journal of Neuroscience, 11, 2383–2402.

    PubMed  Google Scholar 

  • Crick, F., & Asanuma, C. (1986). Certain aspects of the anatomy and physiology of the cerebral cortex. In D. Rumelhart & J. L. McClelland (Eds.),Parallel distributed processing: Explorations in the microstructure of cognition (Vol. 2). Cambridge, MA: MIT Press.

    Google Scholar 

  • Crosson, B. (1985). Subcortical functions in language: A working model.Brain and Language, 25, 257–292.

    Article  PubMed  Google Scholar 

  • Damasio, A.R., & Damasio, H. (1983). The anatomic basis of pure alexia.Neurology, 23, 1573–1583.

    Google Scholar 

  • Démonet, J.-F., Puel, M., Celsis, P., & Cardebat, D. (1991). “Subcortical” aphasias: Some proposed pathophysiological mechanisms and their rCBF correlates revealed by SPECT.Journal of Neurolinguistics, 6, 319–344.

    Article  Google Scholar 

  • Démonet, J.-F., Chollet, F., Ramsay, S., Cardebat, D., Nespoulous, J.-L., Wise, R., Rascol, A., & Frackowiak, R. S. J. 1 (1992). The anatomy of phonological and semantic processing in normal subjects.Brain, 115, 1753–1768.

    PubMed  Google Scholar 

  • Démonet, J.-F., Wise, R., & Frackowiak, R. S. J. (1993a). Regional cerebral blood flow correlates of rehearsal and mental imagery processes in phoneme monitoring tasks: A language activation study using PET in normal subjects.Journal of Cerebral Blood Flow and Metabolism, 13, (Suppl. 1), S519.

    Google Scholar 

  • Démonet, J.-F., Price, C., Wise, R., & Frackowiak, R. S. J. (1993b). Involvement of the right angular gyrus in semantic processes and of the left supramarginal gyrus in phonological processes: An activation study using PET in normal subjects.Journal of Cerebral Blood Flow and Metabolism, 13, (Suppl. 1), S547.

    Google Scholar 

  • Evans, A. C., Beil, C., Thompson, C. J., & Hakim, A. (1988). Anatomical functional correlation using an adjustable MRI based region of interest atlas with positron emission tomography.Journal of Cerebral Blood Flow and Metabolism, 8, 513–530.

    PubMed  Google Scholar 

  • Evans, A. C., Marrett, S., Torrescorzo, J., Ku, S., & Collins, L. (1991). MRI PET correlation in three dimensions using a volume of interest atlas.Journal of Cerebral Blood Flow and Metabolism, 11, 969–978.

    Google Scholar 

  • Fiez, J. A., Raichle, M. E., Tallal, P. A., & Petersen, A. A. (1993). Activation of a left frontal area near Broca's area during auditory detection and phonological processing tasks.Journal of Cerebral Blood Flow and Metabolism, 13, (Suppl 1), S504.

    Google Scholar 

  • Ford, I., McColl, J. H., McCormack, A. G., & McCrory, S. J. (1991). Statistical issues in the analysis of neuroimages.Journal of Cerebral Blood Flow and Metabolism, 11, A89-A95.

    PubMed  Google Scholar 

  • Fox, P. T. (1991). Physiological ROI definition by image subtraction.Journal of Cerebral Blood Flow and Metabolism, 11, A79-A82.

    PubMed  Google Scholar 

  • Fox, P. T., & Mintun, M. A. (1989). Noninvasive functional brain mapping by change-distribution analysis of averaged PET images of H2 15O activity.The Journal of Nuclear Medicine, 30, 141–149.

    Google Scholar 

  • Fox, P. T., Mintun, M. A., Reiman, E. M., & Raichle, M. F. (1988). Enhanced detection of focal brain responses using intersubject averaging and change-distribution analysis of subtracted PET images.Journal of Cerebral Blood Flow and Metabolism, 8, 642–653.

    PubMed  Google Scholar 

  • Fox, P. T., Perlmutter, J. S., & Raichle, M. F. (1985). A stereotactic method of anatomical localization for positron emission tomography.Journal of Computer Assisted Tomography, 9, 141–153.

    PubMed  Google Scholar 

  • Fox, P. T., & Raichle, M. E. (1984). Stimulus rate dependence of regional cerebral blood flow in human striate cortex, demonstrated with positron emission tomography.Journal of Neurophysiology, 51, 1109–1121.

    PubMed  Google Scholar 

  • Friston, K. J., Frith, C. D., Liddle, P. F., Dolan, R. J., Lammertsma, A. A., & Frackowiak, R. S. J. (1990). The relationship between global and local changes in PET scans.Journal of Cerebral Blood Flow and Metabolism, 10, 458–466.

    PubMed  Google Scholar 

  • Friston, K. J., Frith, C. D., Liddle, P. F., & Frackowiak, R. S. J. (1991a). Comparing functional (PET) images: The assessment of significant change.Journal of Cerebral Blood Flow and Metabolism, 11, 690–699.

    PubMed  Google Scholar 

  • Friston, K. J., Frith, C. D., Liddle, P. F., & Frackowaik, R. S. J. (1991b). Plastic transformation of PET images.Journal of computer assisted tomography, 15, 634–639.

    PubMed  Google Scholar 

  • Friston, K. J., Frith, C. D., Liddle, P. F., & Frackowiak, R. S. J. (1993). Functional connectivity: The principal component analysis of large (PET) data sets.Journal of Cerebral Blood Flow and Metabolism, 13, 5–14.

    PubMed  Google Scholar 

  • Friston, K. J., Passingham, R. F., Nutt, J. G., Heather, J. D., Sawle, J. V., & Frackowiak, R. S. J. (1989). Localisation of PET images: Direct fitting of the intercommisural (AC-PC) line.Journal of Cerebral Blood Flow and Metabolism, 9, 690–695.

    PubMed  Google Scholar 

  • Frith, C. D., Friston, K. J., Liddle, P. F., & Frackowiak, R. S. J. (1991). A PET study of word finding.Neuropsychologia, 39, 1137–1148.

    Article  Google Scholar 

  • Grasby, P. M., Friston, K. J., Bench, C. J., Frith, C. D., Frackowiak, R. S. J. & Dolan, R. J. (1993a). Functional imaging of brain areas implicated in auditory verbal memory using a graded task approach.Journal of Cerebral Blood Flow and Metabolism, 13, (Suppl. 1), S257.

    Google Scholar 

  • Grasby, P. M., Frith, C. D., Friston, J., Bench, C., Frackowiak, R. S. J. & Dolan, R. J. (1993b). Functional mapping of brain areas implicated in auditory-verbal memory function.Brain, 116, 1–20.

    PubMed  Google Scholar 

  • Horowitz, B. (1991). Functional interactions in the brain: Use of correlations between regional metabolic rates.Journal of Cerebral Blood Flow and Metabolism, 11, A114-A120.

    PubMed  Google Scholar 

  • Howard, D., Patterson, K., Wise, R., Brown, W. D., Friston, K., Weiller, C., & Frackowiak, R. 1(1992).Brain, 115, 1769–1782.

    PubMed  Google Scholar 

  • Radiation Dose to Patients from Radiopharmaceuticals (1987) (ICRP Publication 53) (pp. 67–68. Oxford, England: Pergamon.

  • Inamura, T., Nagasawa, H., Itoh, M., Saito, H., & Kogure, K. (1993). Focal activation of Wernicke area during semantic processing.Journal of Cerebral Blood Flow and Metabolism, 13, (Suppl 1), S495.

    Google Scholar 

  • Kempler, D., Curtiss, S., Metter, D. J., Jackson, C. A., & Hanson, W. R. (1991). Grammatical comprehension, aphasic syndromes and neuroimaging.Journal of Neurolinguistics, 6, 301–318.

    Article  Google Scholar 

  • Kiyosawa, M., Itoh, M., Nakagawa, Y., Kobayashi, N., & Tannai, M. (1993). Different activation patterns of cerebral blood flow by kanji and kana reading in Japanese subjects.Journal of Cerebral Blood Flow and Metabolism, 13 (Suppl. 1), S539.

    Google Scholar 

  • Knopman, D. S., Rubens, A. B., Klassen, A. C., & Meyer, M. W. (1982). Regional cerebral blood flow correlates of auditory processing.Archives of Neurology, 39, 487–493.

    PubMed  Google Scholar 

  • Levy, A. V., Laska, E., Brodie, J. D., Volkow, N. D. & Wolf, A. P. (1991). The spectral signature method for the analysis of PET brain images.Journal of Cerebral Blood Flow and Metabolism, 11, A103-A113.

    PubMed  Google Scholar 

  • Mazoyer, B. M., Dehaene, S., Tzourio, N., Frak, G., Murayama, N., Cohen, L., Levrier, O., Raynaud, L., Salamon, G., Syroto, A., & Mehler, J. (1993). The cortical representation of continuous speech.Journal of Cerebral Blood Flow and Metabolism, 13, (Suppl. 1), S261.

    Google Scholar 

  • Mazziotto, J. C., Pellizari, C. C., Chan, G. T., Brookstein, F. L. & Valentino, D. (1991). Region of interest issues: The relationship between structure and function in the brain.Journal of Cerebral Blood Flow and Metabolism, 11, A5-A56.

    Google Scholar 

  • Mintun, M. A., Fox, P. T., & Raichle, M. F. (1989). A highly accurate method of localizing regions of neuronal activation in the human brain with positron emission tomography.Journal of Cerebral Blood Flow and Metabolism, 9, 96–103.

    PubMed  Google Scholar 

  • Nenov, V. I., Halgren, E., Smith, M. E., Badier, J.-M., Ropchan, J., Blahd, W. H., & Mandelkern, M. (1991). Localized brain metabolic response correlated with potentials evoked by words.Behavioral Brain Research, 44, 101–104.

    Google Scholar 

  • Pardo, J. V., Pardo, P. J., Janer, K. W., & Raichle, M. E. (1990). The anterior cingulate cortex mediates processing selection in the Stroop attentional conflict paradigm.Proceedings of the National Academy of Science USA, 87, 256–259.

    Google Scholar 

  • Paulesu, E., Frith, C. D., & Frackowiak, R. S. J. (1993a). The neural correlates of the verbal component of working memory.Nature, 362, 342–345.

    Article  PubMed  Google Scholar 

  • Paulesu, E., Frith, C. D., Bench, C. J., Bottini, G., Grasby, P. G., & Frackowiak, R. S. J. (1993b). Functional anatomy of working memory: The articulatory loop.Journal of Cerebral Blood Flow and Metabolism, 13, (Suppl. 1), S551.

    Google Scholar 

  • Pawlik, G. (1991). Statistical analysis of functional neuroimaging data: Exploratory vs. inferential methods.Journal of Cerebral Blood Flow and Metabolism, 11, A136-A139.

    PubMed  Google Scholar 

  • Perani, D., Bressi, S., Cappa, S. F., Vallar, G., Alberoni, M., Grassi, F., Caltagirone, C., Cipoletti, L., Franceschi, M., Lenzi, G. L., & Fazio, F. (1991). Evidence of multiple memory systems in the human brain: An [18F]FDG metabolic study.Brain, 116, 903–919.

    Google Scholar 

  • Petersen, S. E., Fox, P. T., Posner, M. I., Mintun, M. A., & Raichle, M. F. (1989). Positron emission tomographic studies of the processing of single words.Journal of Cognitive Neuroscience, 1, 153–170.

    Google Scholar 

  • Petersen, S. E., Fox, P. T., Snyder, A. Z., & Raichle, M. F. (1990). Activation of extrastriate and frontal cortical areas by visual words and word-like stimuli.Science, 249, 1041–1044.

    PubMed  Google Scholar 

  • Pocppel, D. (1994). A critical review of PET studies of language. Unpublished manuscript, Massachusetts Institute of Technology, Department of Brain and Cognitive Sciences.

  • Poline, J.-B., & Mazoyer, B. M. (1993). Analysis of individual positron emission tomography activation maps by detection of high signal-to-noise-ratio pixel clusters.Journal of Cerebral Blood Flow and Metabolism, 13, 425–437.

    PubMed  Google Scholar 

  • Price, C., Wise, R., Howard, D., Patterson, K., & Frackowiak, R. S. J. (1993b). To what extent does the auditory cortex respond to the sound of your own voice?Journal of Cerebral Blood Flow and Metabolism, 13 (Suppl 1), S549.

    Google Scholar 

  • Price, C., Wise, R., Howard, D., Patterson, K., Watson, J., & Frackowiak, R. S. J. (1993a). The brain regions involved in the recognition of visually presented words.Journal of Cerebral Blood Flow and Metabolism, 13 (Suppl. 1), S501.

    Google Scholar 

  • Price, C., Wise, R., Ramsay, S., Friston, K. J., Howard, D., Patterson, K., & Frackowiak, R. S. J. (1992). Regional response differences within the human auditory cortex when listening to words.Neuroscience Letters, 46, 179–182.

    Article  Google Scholar 

  • Raichle, M. E. (1991). Memory mechanisms in the processing of words and word-like symbols.Ciba Foundation Symposium 63: Exploring brain functional anatomy with positron emission tomography. Chichester: Wiley.

    Google Scholar 

  • Raichle, M. E., Martin, W. R. W., Herscovitch, P., Mintun, M. A., & Markham, J. (1983). Brain blood flow measured with H2 15O: II. Implementation and validation.Journal of Nuclear Medicine, 24, 290–298.

    Google Scholar 

  • Scheffel, A., Szechtman, H., Szechtman, B., Chirakal, R., Firnau, G., Gannett, G. S., & Nalmias, C. (1993). Changes in regional cerebral blood flow in response to externally and internally generated auditory stimuli.Journal of Cerebral Blood Flow and Metabolism, 13, (Suppl. 1), S532.

    Google Scholar 

  • Seitz, R. J., Bohm, C., Greitz, T., Roland, P. E., Eriksson, L., Blomqvist, G., Rosenqvist, G., & Nordell, B. (1990). Accuracy and precision of the computerized brain atlas programme for localization and quantification in positron emission tomography.Journal of Cerebral Blood Flow and Metabolism, 10, 443–457.

    PubMed  Google Scholar 

  • Sergent, J., Zuck, E., Levesque, M., & MacDonald, B. (1992). Positron emission tomography study of letter and object processing: Empirical findings and methodological considerations.Cerebral Cortex, 2, 68–80.

    PubMed  Google Scholar 

  • Squires, L. R., Ojemann, J. G., Miezen, F. M., Petersen, P. E., Videen, T. O., & Raichle, M. E. (1992). Activation of the hippocampus in normal humans: A functional anatomical study of memory.Proceedings of the National Academy of Science USA, 89, 1837–1841.

    Google Scholar 

  • Steinmetz, H., Rademacher, J., Jancke, L., Huang, Y., Thron, A., & Zilles, K. (1990). Total surface of temporoparietal intrasylvian cortex: Diverging left-right asymmetries.Brain and Language, 39, 357–372.

    Article  PubMed  Google Scholar 

  • Steinmetz, H. Ebeling, U., Huang, Y., & Kahn, T. (1990). Sulcus topography of the parictal opercular region: An anatomic and MR study.Brain and Language, 38, 515–533.

    Article  PubMed  Google Scholar 

  • Steinmetz, H., & Seitz, R. J. (1991). Functional anatomy of language processing: Neuroimaging and the problem of individual variability.Neuropsychologia 29, 1149–1161.

    Article  PubMed  Google Scholar 

  • Stromswold, K., Albert, N., Rausch, S., & Caplan, D. (1993, March).The neural modularity of sentence processing: A PET study. Paper presented at the CUNY Sentencing Processing Conference, New York.

  • Talairach, J., & Tournoux, P. (1988).Co-planar stereotaxic atlas of the human brain. New York: Thieme Medical Publishers.

    Google Scholar 

  • Tokunaga, A., Takase, M., & Otani, K. (1977). The glabella-inion line as a baseline for CT scanning of the brain.Neuroradiology, 14, 67–71.

    Article  PubMed  Google Scholar 

  • Warach, S., Gur, R. C., Gur, R. E., Skolnick, B. E., Obrist, W. D., & Reivich, M. (1992). Decreases in frontal and parietal lobe regional cerebral blood flow related to habituation.Journal of Cerebral Blood Flow and Metabolism, 12, 546–551.

    PubMed  Google Scholar 

  • Warkentin, S., Risberg, J., Nilsson, A., Karlson, S., & Graac, E. (1991). Cortical activation during speech production: A study of regional cerebral blood flow in normal subjects performing a word fluency task.Neuropsychiatry, Neuropsychology and Behavioral Neurology, 4, 305–316.

    Google Scholar 

  • Wijers, A. A., Stowe, L. A., Willemsen, A. T. M., Paans, A. M. J., Pruim, J., & Vaalburg, W. (1994).An investigation of trial-by-trial variations in regional cerebral blood flow with PET. Unpublished manuscript, The University of Groningen, Department of Experimental and Occupational Psychology, Groningen, Netherlands.

    Google Scholar 

  • Wise, R. J. S. (1991). The anatomy of single word processing: Activation studies with positron emission tomography.Journal of Neurolinguistics 6, 272–284.

    Article  Google Scholar 

  • Wise, R., Chollet, F., Hadar, U., Friston, K. J., Hoffner, E., & Frackowiak, R. S. J. (1991). Distribution of cortical neural networks involved in word comprehension and word retrieval.Brain, 114, 1803–1817.

    PubMed  Google Scholar 

  • Wise, R., Hadar, U., Howard, D., & Patterson, K. (1991). Language activation studies with positron emission tomography.Ciba Foundation Symposium 63: Exploring brain functional anatomy with positron tomography. Chichester: Wiley.

    Google Scholar 

  • Worsely, K. J., Evans, A. S., Marrett, S., & Neelin, P. (1992). A three-dimensional statistical analysis for CBF activation studies in human brain.Journal of Cerebral Blood Flow and Metabolism, 12, 900–918.

    PubMed  Google Scholar 

  • Zatorre, R., Evans, A., Meyer, E., & Giedde, E. (1992). Lateralization of phonetic and pitch discrimination in speech processing.Science, 256, 846–849.

    PubMed  Google Scholar 

  • Zeki, S. (1992). The visual image in mind and brain.Scientific American, 267, (3), 68–76.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Stowe, L.A., Wijers, A.A., Willemsen, A. et al. PET studies of language: An assessment of the reliability of the technique. J Psycholinguist Res 23, 499–527 (1994). https://doi.org/10.1007/BF02146688

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02146688

Keywords

Navigation