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Researcher

de Graaf, Tom A.

Assistant Professor

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  1. 2019
  2. E-pub ahead of print
    Thomson, A. C., de Graaf, T. A., Kenis, G., Rutten, B. P. F., Schuhmann, T., & Sack, A. T. (2019). No additive meta plasticity effects of accelerated iTBS with short inter-session intervals. Brain stimulation. https://doi.org/10.1016/j.brs.2019.05.012
  3. 2018
  4. Published
    de Graaf, T. A., & Sack, A. T. (2018). When and how to interpret null results in NIBS: a taxonomy based on prior expectations and experimental design. Frontiers in Neuroscience, 12, [915]. https://doi.org/10.3389/fnins.2018.00915
  5. Published
    de Graaf, T. A., van den Hurk, J., Duecker, F., & Sack, A. T. (2018). Where are the fMRI correlates of phosphene perception? Frontiers in Neuroscience, 12, [883]. https://doi.org/10.3389/fnins.2018.00883
  6. Published
    Schilberg, L., Engelen, T., Ten Oever, S., Schuhmann, T., de Gelder, B., de Graaf, T. A., & Sack, A. T. (2018). Phase of beta-frequency tACS over primary motor cortex modulates corticospinal excitability. Cortex, 103, 142-152. https://doi.org/10.1016/j.cortex.2018.03.001
  7. 2017
  8. Published
    de Graaf, T. A., Baeken, C., Sienaert, P., Aleman, A., & Sack, A. T. (2017). Hersenstimulatie: de meest directe vorm van neuromodulatie. Tijdschrift voor Psychiatrie, 59(10), 588-593.
  9. Published
    Gallotto, S., Sack, A. T., Schuhmann, T., & de Graaf, T. A. (2017). Oscillatory correlates of visual consciousness. Frontiers in Psychology, 8, [1147]. https://doi.org/10.3389/fpsyg.2017.01147
  10. Published
    de Graaf, T. A., Duecker, F., Stankevich, Y., Ten Oever, S., & Sack, A. T. (2017). Seeing in the dark: Phosphene thresholds with eyes open versus closed in the absence of visual inputs. Brain stimulation, 10(4), 828-835. https://doi.org/10.1016/j.brs.2017.04.127
  11. Published
    Emmerling - Dambacher, F., Duecker, F., de Graaf, T. A., Schuhmann, T., Adam, J. J., & Sack, A. T. (2017). Foresight beats hindsight: The neural correlates underlying motor preparation in the pro-/anti-cue paradigm. Brain and Behavior, 7(5), [e00663]. https://doi.org/10.1002/brb3.663
  12. Published
    de Graaf, T. A., van Ee, R., Croonenberg, D., Klink, P. C., & Sack, A. T. (2017). Visual suppression at the offset of binocular rivalry. Journal of Vision, 17(1), 1-18. [2]. https://doi.org/10.1167/17.1.2
  13. 2016
  14. Published
    ten Oever, S., de Graaf, T. A., Bonnemayer, C., Ronner, J., Sack, A. T., & Riecke, L. (2016). Stimulus Presentation at Specific Neuronal Oscillatory Phases Experimentally Controlled with tACS: Implementation and Applications. Frontiers in Cellular Neuroscience, 10, [240]. https://doi.org/10.3389/fncel.2016.00240
  15. 2015
  16. Published
    Engelen, T., de Graaf, T. A., Sack, A. T., & de Gelder, B. (2015). A causal role for inferior parietal lobule in emotion body perception. Cortex, 73, 195-202. https://doi.org/10.1016/j.cortex.2015.08.013
  17. Published
    de Graaf, T. A., Duecker, F., Fernholz, M. H. P., & Sack, A. T. (2015). Spatially specific vs. unspecific disruption of visual orientation perception using chronometric pre-stimulus TMS. Frontiers in Behavioral Neuroscience, 9, [5]. https://doi.org/10.3389/fnbeh.2015.00005
  18. 2014
  19. Published
    Jacobs, C., de Graaf, T. A., & Sack, A. T. (2014). Two distinct neural mechanisms in early visual cortex determine subsequent visual processing. Cortex, 59, 1-11. https://doi.org/10.1016/j.cortex.2014.06.017
  20. Published
    de Graaf, T. A., & Sack, A. T. (2014). Using brain stimulation to disentangle neural correlates of conscious vision. Frontiers in Psychology, 5, [1019]. https://doi.org/10.3389/fpsyg.2014.01019
  21. Published
    de Graaf, T. A., Koivisto, M., Jacobs, C., & Sack, A. T. (2014). The chronometry of visual perception: review of occipital TMS masking studies. Neuroscience and Biobehavioral Reviews, 45, 295-304. https://doi.org/10.1016/j.neubiorev.2014.06.017
  22. Published
    Duecker, F., de Graaf, T. A., & Sack, A. T. (2014). Thinking caps for everyone? : the role of neuro-enhancement by non-invasive brain stimulation in neuroscience and beyond. Frontiers in systems neuroscience, 8, [71]. https://doi.org/10.3389/fnsys.2014.00071
  23. Published
    Duecker, F., Frost, M. A., de Graaf, T. A., Gräwe, B., Jacobs, C., Goebel, R. W., & Sack, A. T. (2014). The cortex-based alignment approach to TMS coil positioning. Journal of Cognitive Neuroscience, 26(10), 2321-2329. https://doi.org/10.1162/jocn_a_00635
  24. 2013
  25. Published
    Duecker, F., de Graaf, T. A., Jacobs, C., & Sack, A. T. (2013). Time- and task-dependent non-neural effects of real and sham TMS. PLOS ONE, 8(9), [73813]. https://doi.org/10.1371/journal.pone.0073813
  26. Published
    de Graaf, T. A., Gross, J., Paterson, G., Rusch, T., Sack, A. T., & Thut, G. (2013). Alpha-band rhythms in visual task performance: phase-locking by rhythmic sensory stimulation. PLOS ONE, 8(3), [60035]. https://doi.org/10.1371/journal.pone.0060035
  27. Published
    de Graaf, T. A. (2013). Brain in sight : probing the neural dynamics underlying conscious vision. Maastricht: Maastricht University.
  28. Published
    Peters, J. C., Reithler, J., Schuhmann, T., de Graaf, T., Uludag, K., Goebel, R., & Sack, A. T. (2013). On the feasibility of concurrent human TMS-EEG-fMRI measurements. Journal of Neurophysiology, 109(4), 1214-1227. https://doi.org/10.1152/jn.00071.2012
  29. 2012
  30. Published
    Jacobs, C., de Graaf, T. A., Goebel, R., & Sack, A. T. (2012). The temporal dynamics of early visual cortex involvement in behavioral priming. PLOS ONE, 7(11), [48808]. https://doi.org/10.1371/journal.pone.0048808
  31. Published
    de Graaf, T. A., Goebel, R., & Sack, A. T. (2012). Feedforward and quick recurrent processes in early visual cortex revealed by TMS? Neuroimage, 61(3), 651-659. https://doi.org/10.1016/j.neuroimage.2011.10.020
  32. Published
    de Graaf, T. A., Hsieh, P. J., & Sack, A. T. (2012). The 'correlates' in neural correlates of consciousness. Neuroscience and Biobehavioral Reviews, 36(1), 191-197. https://doi.org/10.1016/j.neubiorev.2011.05.012
  33. 2011
  34. Published
    de Graaf, T. A., Cornelsen, S., Jacobs, C., & Sack, A. T. (2011). TMS effects on subjective and objective measures of vision: Stimulation intensity and pre- versus post-stimulus masking. Consciousness and Cognition, 20(4), 1244-1255. https://doi.org/10.1016/j.concog.2011.04.012
  35. Published
    de Graaf, T. A., Herring, J., & Sack, A. T. (2011). A chronometric exploration of high-resolution 'sensitive TMS masking' effects on subjective and objective measures of vision. Experimental Brain Research, 209(1), 19-27. https://doi.org/10.1007/s00221-010-2512-z
  36. Published
    de Graaf, T., & Sack, A. T. (2011). Null results in TMS: From absence of evidence to evidence of absence. Neuroscience and Biobehavioral Reviews, 35(3), 871-877. https://doi.org/10.1016/j.neubiorev.2010.10.006
  37. Published
    de Graaf, T. A., Jong, M. C., Goebel, R., van Ee, R., & Sack, A. T. (2011). On the functional relevance of frontal cortex for passive and voluntarily controlled bistable vision. Cerebral Cortex, 21(10), 2322-2331. https://doi.org/10.1093/cercor/bhr015
  38. 2010
  39. Published
    de Graaf, T. A., Roebroeck, A. F., Goebel, R., & Sack, A. T. (2010). Brain network dynamics underlying visuospatial judgment: an FMRI connectivity study. Journal of Cognitive Neuroscience, 22(9), 2012-2026. https://doi.org/10.1162/jocn.2009.21345
  40. Published
    Machado, S., Araújo, F., Paes, F., Velasques, B., Cunha, M., Budde, H., ... Ribeiro, P. (2010). EEG-based Brain-Computer Interfaces: An Overview of Basic Concepts and Clinical Applications in Neurorehabilitation. Reviews in the Neurosciences, 21(6), 451-468. https://doi.org/10.1515/REVNEURO.2010.21.6.451
  41. 2009
  42. Published
    de Graaf, T. A., Jacobs, C., Roebroeck, A. F., & Sack, A. T. (2009). FMRI effective connectivity and TMS chronometry: complementary accounts of causality in the visuospatial judgment network. PLOS ONE, 4(12), [e8307]. https://doi.org/10.1371/journal.pone.0008307

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