Dr. Bianca de Haan

 

My profile on Google Scholar

 

 

 

After damage to the right hemisphere following for example a stroke, patients will sometimes show impaired awareness for objects presented on the contralesional (left) side when these objects occur together with objects presented on the ipsilesional (right) side. This phenomenon is known as extinction. Using a combination of fMRI, TMS and behavioural experiments in both healthy subjects and neurologically damaged patients, I am currently hoping to gain more insight into the critical mechanisms and anatomy underlying extinction, selective attention, competitive interactions and perceptual awareness.

 

 

Journal Publications (* denotes shared first-autorship):

 

de Haan, B. & Karnath, H.-O. (in press). Objections against the view of visual extinction as an attentional disengagement deficit: The interaction between spatial position and temporal modulation. Cortex; doi:10.1016/j.cortex.2011.03.011.

 

Juenger, H., de Haan, B., Krägeloh-Mann, I., Staudt, M. & Karnath, H.-O. (2011). Early determination of somatosensory cortex in the human brain. Cerebral Cortex, 21(8), 1827-1831.

 

Wilke, M., de Haan, B., Juenger, H. & Karnath, H.-O. (2011). Manual, semi-automated, and automated delineation of chronic brain lesions: A comparison of methods. NeuroImage, 56(4), 2038-2046.

 

Baas, U., de Haan, B., Grässli, T., Karnath, H.-O., Müri, R., Perrig, W., Wurtz, P. & Gutbrod, K. (2011). Personal Neglect - A Disorder of Body Representation? Neuropsychologia, 49(5), 898-905.

 

de Haan, B. & Rorden, C. (2010). Similarity grouping and repetition blindness are both influenced by attention. Frontiers in Human Neuroscience, 4:20.

 

Baier, B.*, de Haan, B.*, Müller, N., Thömke, F., Birklein, F., Dieterich, M. & Karnath, H.-O. (2010). Anatomical correlate of positive spontaneous visual phenomena – a voxelwise lesion study. Neurology, 74, 218-222.

 

Ticini, L. F., de Haan, B., Klose, U., Nägele, T. & Karnath, H.-O. (2010). The role of temporoparietal cortex in subcortical visual extinction. Journal of Cognitive Neuroscience, 22(9), 2141-2150.

 

Pflugshaupt, T., Gutbrod, K., Wurtz, P., von Wartburg, R., Nyffeler, T., de Haan, B., Karnath, H.-O. & Mueri, R. M. (2009). About the role of visual field defects in pure alexia. Brain, 132, 1907-1917.

 

de Haan, B., Morgan, P. S. & Rorden, C. (2008). Covert orienting of attention and overt eye movements activate identical brain regions. Brain Research, 1204, 102-111.

 

Pitchford, N. J., Funnell, E., de Haan, B. & Morgan, P. S. (2007). Right hemisphere reading in a case of developmental deep dyslexia. The Quarterly Journal of Experimental Psychology, 60(9), 1187-1196.

 

 

 

Biography:

 

I graduated in 2001 from the State University of Groningen, The Netherlands.

The title of my dissertation was ‘Coordination and patterns of synchronization in the human brain’ and it dealt with the relationship between oscillations in the gamma frequency band in human EEG and perceiving a coherent percept (visual binding). I was supervised by Prof. Dr. R. de Jong.

 

I successfully defended my PhD thesis on the 7th of November 2006 at the University of Nottingham, UK. The title of my thesis was ‘Pre-requisites of perceptual awareness: Insights from studying deficits of attention”. I was supervised by Dr. C. Rorden and Prof. S. Jackson.

 

Since September 2005 I am working for Prof. Dr. Dr. Karnath in Tuebingen, Germany first as a graduate scientist and since completing my PhD as a postdoctoral scientist.

 

Contact Details:

 

Bianca de Haan:

bianca.de-haan[at]klinikum[dot]uni-tuebingen[dot]de

 

 

 

 

A few images of my brain. Top: Anatomical image collected at the 1.5 Siemens Vision scanner at the Queens Medical Centre in Nottingham, UK. Bottom: image of my DTI tracts (anterior view) collected at the 3T Siemens Trio scanner in Tübingen, Germany.

 

Some Useful Links:

 

An MRI tutorial which some people might find helpful to get them started on the basics. Click here to download as a pdf. This is basically the methods chapter from my PhD thesis [de Haan, B. (2006). Pre-requisites of perceptual awareness: Insights from studying deficits of attention. PhD, School of Psychology, University of Nottingham, UK.]. This chapter was written a couple of years ago and therefore the fMRI data analysis paragraphs closely follow SPM2.

 

A lesion analysis tutorial on how to draw, normalise and perform statistical analysis on binary lesion maps (using MRIcroN, SPM8 and NPM respectively). Click here to download this as a pdf.

 

The program SPM I use to analyze my imaging data

 

About MRI imaging in general with loads of very useful links: MRC CBU Imaging home page

 

The program E-prime I use to present stimuli

 

 

Some Less Useful Links:

 

Always wanted to know what Tuebingen looks like? Here's your chance.

 

A nice site from friends of mine who like to make movies.

 

My favourite way to spend the weekends; archery.

 

 


webmaster@zdv.uni-tuebingen.de - 14. November 2001