J. Wackermann, W. Ehm, & J. Späti:
The 'klepsydra model' of internal time representation.
In Fechner Day 2003 (eds. B. Berglund & E. Borg, Stockholm:
Intl. Society for Psychophysics), pp. 331–336 (2003).
R. Jech, P. Dušek, J. Wackermann, & J. Vymazal:
Cumulative blood oxygenation level-dependent signal changes support the 'time
accumulator' hypothesis.
NeuroReport 16: 1467–1471 (2005)
J. Wackermann & W. Ehm:
The dual klepsydra model of internal time representation and time reproduction.
J. Theor. Biol. 239: 482–493 (2006)
J. Wackermann & J. Späti:
Asymmetry of the discrimination function for temporal durations in human subjects.
Acta Neurobiol. Exp. 66: 245–254 (2006)
J. Wackermann:
On additivity of duration reproduction functions.
J. Math. Psychol. 50: 495–500 (2006)
J. Wackermann:
Inner and outer horizons of time experience.
Span. J. Psychol. 10: 20–32 (2007)
J. Wackermann & W. Ehm:
Dual klepsydra model of duration discrimination.
In Fechner Day 2007 (eds. S. Mori, T. Miyaoka, &
W. Wong, Tokyo: Intl. Society for Psychophysics), pp. 515–520 (2007)

J. Wackermann, M. Wittmann, F. Hasler, & F.X. Vollenweider:
Effects of varied doses of psilocybin on time interval reproduction in human subjects.
Neurosci. Lett. 435: 51–55 (2008)
J. Wackermann & Nina Meyer-Blankenburg:
Differential effect of stimulus brightness in visual duration discrimination.
In Fechner Day 2009 (eds. M.A. Elliott et al., Galway: Intl. Society
for Psychophysics), pp. 459–464 (2009)
O.V. Sysoeva, A.G. Tonevitsky, & J. Wackermann:
Genetic determinants of time perception mediated by the serotonergic system.
PLoS ONE 5: e12650 (2010)
J. Wackermann:
On clocks, models and metaphors. Understanding the klepsydra model.
In Multidisciplinary Aspects of Time and Time Perception. [Lecture Notes in Computer Science, vol 6789.]
(eds. A. Vatakis et al., Berlin/Heidelberg: Springer), pp. 246–257 (2011)
O.V. Sysoeva, M. Wittmann, & J. Wackermann:
Neural representation of temporal duration: coherent findings obtained with the
'lossy integration' model.
Front. Integr. Neurosci. 5: 37, 1–2 (2011)
J. Wackermann:
The long is not just a sum of the shorts: on time experienced and other times.
Front. Psychol. 5: 516, 1–4 (2014)
J. Wackermann, K. Meissner, D. Tankersley, & M. Wittmann:
Effects of emotional valence and arousal on acoustic duration reproduction assessed
via the 'dual klepsydra model'.
Front. Neurorobot. 8: 11, 1–8 (2014)
J. Wackermann, J. Pacer, & M. Wittmann:
Perception of acoustically presented time series with varied intervals.
Acta Psychol. 147: 105–110 (2014)