Lorella Battelli

Lorella Battelli, PhD
Assistant Professor

Education History:
Ph.D., Experimental Psychology, University of Trieste, Italy
M.Sc., Clinical Psychophysiology and Neuropsychology, University of Padova, Italy
B.A., Psychology, University of Padova, Italy

In the lab we study vision in the normal and cortically lesioned human subjects. The major focus of our research has been on the spatial and temporal processing of visual stimuli. We have developed a hypothesis that the right parietal lobe serves a generalized role in visual stimulus timing. These ideas were formulated in studies with parietal lesioned patients. We also use transcranial magnetic stimulation (TMS) in an attempt to examine more in detail the neurobiological processing underlying visual timing. The results of these studies have provided evidence of the role of the parietal and temporal cortices in visual timing.

Another line of research regards the use of TMS and transcranial direct current stimulation (tDCS) to study early visual functions that modify across the lifespan. Our recently published study on improved motion perception after TMS has provided some insight about the visual mechanisms that are disrupted in the elderly as well as in some affective and neurological disorders, such as severe depression and schizophrenia.

Research Publications:

  1. Tadin D, Silvanto J, Pascual-Leone A, Battelli L. 2011. Improved motion perception and impaired spatial suppression following disruption of cortical area MT/V5. Journal of Neuroscience. 31(4): 1279-83. http://www.ncbi.nlm.nih.gov/pubmed/21273412
  2. Battelli L, Alvarez G, Carlson T, Pascual-Leone A. 2009. The role of the parietal lobe in visual extinction studied with transcranial magnetic stimulation. Journal of Cognitive Neuroscience. 21(10):1946-55. http://www.ncbi.nlm.nih.gov/pubmed/18855545
  3. Cattaneo Z, Silvanto J, Battelli L, Pascual-Leone A. 2009. The mental number line modulates visual cortical excitability. Neurosci Lett. 25;462(3):253-6. http://www.ncbi.nlm.nih.gov/pubmed/19616067
  4. Cattaneo Z, Silvanto J, Pascual-Leone A, Battelli L. 2009. The middle range of the number line orients attention to the left side of visual space. Cogntivie Neuropsychology. 14:1-12.http://www.ncbi.nlm.nih.gov/pubmed/19449241
  5. Cattaneo Z, Silvanto J, Pascual-Leone A, Battelli L. 2009. The role of the angular gyrus in the modulation of visuospatial attention by the mental number line. Neuroimage. 15; 44(2):563-8. http://www.ncbi.nlm.nih.gov/pubmed/18848630
  6. Merabet L, Battelli L, Obretenova S, Maguire S, Meijer P, Pascual-Leone A. 2009. Functional Recruitment of Visual Cortex for sound encoded object identification in the Blind: A TMS Case Study. NeuroReport,. 28; 20(2):132-8. http://www.ncbi.nlm.nih.gov/pubmed/19104453
  7. Battelli L, Walsh V, Pascual-Leone A, Cavanagh P. 2008. The 'when' parietal pathway explored by lesion studies. Current Opinion in Neurobiology, 18: 120-26. http://www.ncbi.nlm.nih.gov/pubmed/18708141
  8. VanRullen R., Pascual-Leone A. and Battelli L. (2008) The Continuous Wagon Wheel Illusion and the 'When' pathway of the right parietal lobe: a repetitive transcranial magnetic stimulation study. Plos ONE. 3(8) e2911. http://www.ncbi.nlm.nih.gov/pubmed/18682842
  9. Silvanto J, Cattaneo Z, Battelli L, Pascual-Leone A. 2008. Baseline cortical excitability determines whether TMS disrupts or facilitates behavior. Journal of Neurophysiology. 99: 2725-30. http://www.ncbi.nlm.nih.gov/pubmed/18337360
  10. Battelli L, Pascual-Leone A, Cavanagh P. 2007. The 'When' pathway of the right parietal lobe. Trends in Cognitive Sciences. 11(5):204-10. http://www.ncbi.nlm.nih.gov/pubmed/17379569
  11. Grossman E, Battelli L, Pascual-Leone A. 2005. Repetitive TMS over posterior STS disrupts perception of biological motion. Vision Research. 45, 2847-53. http://www.ncbi.nlm.nih.gov/pubmed/16039692
  12. Battelli L, Cavanagh P, Martini P, Barton JJS. 2003. Bilateral deficit of transient visual attention in right parietal patients. Brain. 126: 2164-74. http://www.ncbi.nlm.nih.gov/pubmed/12821511
  13. Battelli L, Cavanagh P, Thornton IM. 2003. Perception of biological motion in parietal patients. Neuropsychologia. 41: 1808-16. http://www.ncbi.nlm.nih.gov/pubmed/14527544
  14. Battelli L, Black K, Wray SH. 2002. Transcranial magnetic stimulation of visual area V5 in migraine. Neurology. 58: 1066-1069.http://www.ncbi.nlm.nih.gov/pubmed/11940694
  15. Battelli L, Cavanagh P, Intriligator J, Tramo MJ, Hénaff M-A, Michèl F, Barton J. 2001. Unilateral right parietal damage leads to bilateral deficit for high-level motion. Neuron. 32: 985-995. http://www.ncbi.nlm.nih.gov/pubmed/11754832
  16. Battelli L. and Humphreys G.W. (1999) Separate encoding of shapes from moving and stationary images. Neuropsychological evidence. In C. Taddei-Ferretti (Ed.), Downward Processes in the Perception Representation Mechanism. Singapore: World Scientific. (NR), 6: 263-269.
  17. Ellison A, Battelli L, Cowey A, Walsh V. 2003. The effect of expectation on facilitation of colour/form conjunction tasks by TMS over area V5. Neuropsychologia. 41: 1794-1801. http://www.ncbi.nlm.nih.gov/pubmed/14527542
  18. Stewart L, Battelli L, Walsh V, Cowey A. 1999. Motion perception and perceptual learning studied by magnetic stimulation. Electroencephalography and Clinical Neurophysiology. 38: 210-220. http://www.ncbi.nlm.nih.gov/pubmed/10590967
  19. Walsh V, Ellison A, Battelli L, Cowey A. 1998. Task-specific impairment and enhancement induced by magnetic stimulation of human visual area V5. Proceedings of the Royal Society of London: Biological Sciences. 265, 537-543. < a href=http://www.ncbi.nlm.nih.gov/pubmed/9569672>http://www.ncbi.nlm.nih.gov/pubmed/9569672
  20. Battelli L, Casco C, Sartori G. 1997. Dissociation between contour based and texture based shape perception. A single case study. Visual Cognition. 4 (3), 275-310.
  21. Casco C, Vestri A, Battelli L, Sartori G. 1997. Temporal segregation deficit in visual perception: a single case study. Neurocase. 3, 349-364.
  22. Mizuno M, Sartori G, Liccione D, Battelli L, Campo R. (1996) Progressive visual agnosia with posterior cortical atrophy. Clinical Neurology and Neurosurgery. 98, 176-178. http://www.ncbi.nlm.nih.gov/pubmed/8836594