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Dr Jasna Martinovic


Contact Details

School of Psychology, University of Aberdeen, William Guild Building, Aberdeen, AB24 3UB, UK
Office: F13. Telephone: +44 (0)1224 272240  Email address: j.martinovic at abdn.ac.uk


Qualifications

2007, PhD in Psychology, University of Leipzig, Germany (Dr.rer.nat., Summa cum laude)                             

2003, MSc in Cognitive and Affective Neuroscience (distinction), University of Liverpool, UK                                                

2001, Dipl.-psych., University of Belgrade, Serbia


Current Research

How does basic visual information that we sample from the environment in the form of luminance and colour contrast get transformed by our visual system into a representation of our environment?

This might seem a trivial question, but the rich world of objects that we experience in everyday life is derived from basic signals about brightness and chromaticity which subsequently get

processed by structurally and functionally complex areas of our brain. My work concerns object representation, in particular its relation to the synergistic processing of luminance and chromatic

signals. I am interested in how this joint processing influences perceptual organisation of scenes, attentional selection and object representation.


I use a combination of psychophysical and EEG methods in my work. Psychophysics allows me to measure levels of contrast necessary to perform various visual tasks, or levels of other stimulus

properties such as depth or coherence that lead to certain percepts being formed. On the other hand, EEG provides a window into rapidly occuring neural processes that relate to these visual percepts.

Recently, I was funded by the BBSRC to investigate the early advantage of luminance for object representation and its cross-talk with chromatic pathways in human visual scene analysis.

I conducted this work together with Dr Ben Jennings between 2011 and 2013. You can find more information about this research  on our project website. I was also involved in a DFG-funded project

that investigated the neural mechanisms of visual object representation, which was conducted at the University of Leipzig by Prof Matthias M Mueller and Dr Matt Craddock.

Other ongoing external collaborations include: Matt Field, University of Liverpool (attentional bias for alcohol-related cues); Sophie Wuerger, University of Liverpool (colour-based attention),

Corinna Haenschel, City University London (inputs into visual working memory) and Andreas Keil, University of Florida, Gainsville (contributions of chromatic signals to emotional conditioning).


Students that are interested in colour vision, object representation or attention should get in touch. I am happy to have undergraduate students helping in the lab and to apply for funding
for summer

projects for third year students. For those interested in postgraduate study, School of Psychology has a Masters by Research programme, so please approach me if you'd like to do an MRes in my lab.

I am also happy to discuss applications for PhD funding with interested students.


Membership of Professional Associations

Experimental Psychology Society (EPS); Applied Vision Association (AVA); Colour Group GB; British Psychological Society (BPS).


Publications

Jennings, B.J. & Martinovic, J. (2014) Luminance and color inputs to mid-level and high-level vision. Journal of Vision, 14(2), article 9.

Makin, A.D.J., Rampone, G., Wright, A., Martinovic, J., Bertamini, M. (2014) Visual symmetry in objects and gaps. Journal of Vision, 14(3), article 12.

Craddock, M., Martinovic, J., Mueller, M.M. (2013) Task and spatial frequency modulations of object processing: an EEG study. PLoS One, 8(7), e70293.

Keil, A., Miskovic, V., Gray, M.J., Martinovic, J. (2013) Luminance, but not chromatic visual pathways mediate amplification of conditioned danger signals in human visual cortex. European Journal of Neuroscience, 38(9), 3356-62.

Andersen, S.K., Mueller, M.M., Martinovic, J. (2012). Bottom-up biases in feature-selective attention. Journal of Neuroscience, 32(47), 16953-16958..

 Jones, A., Hogarth, L., Christiansen, P., Rose, A.K., Martinovic, J., and Field, M. (2012). Reward expectancy promotes generalised increases in attentional bias for rewarding stimuli. Quarterly Journal of Experimental Psychology.

Martinovic, J., Lawson, R. and Craddock, M. (2012). Time course of information processing in visual and haptic object classification. Frontiers in Human Neuroscience, 6(49). doi: 10.3389/fnhum.2012.00049 

Craddock, M., Martinovic, J., & Lawson, R., (2011). An advantage for active versus passive apperture viewing in visual object recognition. Perception. 40 (10), 1154-1163.

 

Martinovic, J., Mordal, J. & Wuerger, S.M. (2011) Event-related potentials reveal an early advantage for luminance contours in the processing of objects. Journal of Vision, 11(7),1; doi:10.1167/11.7.1

 

Wuerger, S. M., Ruppertsberg, A., Malek, S., Bertamini, M., & Martinovic, J. (2011) The integration of local chromatic motion signals is sensitive to contrast polarity. Visual Neuroscience, 28, 239-246.

 

Martinovic, J. & Busch, N.A. (2011) High frequency oscillations as a correlate of visual perception. International Journal of Psychophysiology, 79(1), 32-38. Special Issue: Correlations between gamma-band oscillations and human behaviour.

Martinovic, J., Meyer, G., Mueller, M.M., Wuerger, S.M. (2009) S cone signals invisible to the motion system can improve motion extraction via grouping by colour. Visual Neuroscience, 26 (2), 237-248.

 

Martinovic, J., Gruber, T., Ohla, K., Mueller, M.M. (2009) Induced gamma-band activity elicited by visual representation of unattended objects. Journal of Cognitive Neuroscience, 21 (1), 42-57.

Martinovic, J., Gruber, T., Mueller, M. M. (2009) Priming of object categorization within and across levels of specificity. Psihologija, 42 (1), 27-46.

Martinovic, J., Gruber, T., Mueller, M. M. (2008) Coding of visual object features and feature conjunctions in the human brain. PLoS ONE 3(11): e3781. doi:10.1371/journal.pone.0003781

Martinovic, J., Gruber, T., Hantsch, A., Mueller, M.M. (2008) Induced gamma-band activity is related to the time point of object identification. Brain Research, 1198, 93-106.

Bertamini, M., Martinovic, J., Wuerger, S.M. (2008) Integration of ordinal and metric cues in depth processing. Journal of Vision, 8(2):10, 1-12.

 

Martinovic, J., Gruber, T., Mueller, M.M. (2007) Induced gamma-band responses predict recognition delays during object identification. Journal of Cognitive Neuroscience, 19, 921-934.

 


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