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Natasha Sigala

Visiting Scientist, Executive Processes Group

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Natasha Sigala

Contact details

E-mail address: natasha.sigala@mrc-cbu.cam.ac.uk
Telephone: +44 (0)1223 355294
Direct line: +44 (0)1223 273688
Fax: +44 (0)1223 359062
Address: MRC Cognition and Brain Sciences Unit,
15 Chaucer Road,
Cambridge,
CB2 7EF

Research areas

I study mechanisms that support visual perception, attention and memory. I am particularly interested in the ways that neuronal representations change in response to learning and behavioural context.


PUBLICATIONS

  1. MJ Buckley & N Sigala (2010), Is top-down control from prefrontal cortex necessary for visual categorization?, Neuron, 66(4): 471-3.
  2. Stoewer S, Ku SP, Goense J, Steudel T, Logothetis NK, Duncan J, Sigala N (2010), Frontoparietal activity with minimal decision and control in the awake macaque at 7T, Magnetic Resonance Imaging, in press
  3. M. Kusunoki, N. Sigala, H. Nilli, D. Gaffan & J. Duncan (2010). Target Detection by Opponent Coding in Monkey Prefrontal Cortex, Journal of Cognitive Neuroscience, 22(4):751-60
  1. Sigala, N (2009), Visual working memory and delay activity in highly selective neurons in the inferior temporal cortex, Frontiers in Systems Neuroscience 3:11 1-2, doi:10.3389/neuro.06.011.2009

  1. Sigala, N (2009), Natural images: a lingua franca for primates?, The Open Neuroscience Journal 3: 48-51, doi: 10.2174/1874082000903010048

  1. M. Kusunoki, N. Sigala, D. Gaffan & J. Duncan (2009). Detection of Fixed and Variable Targets in the Monkey Prefrontal Cortex, Cerebral Cortex 19(11): 2522-34
  2. N. Hon, R. Thompson, N. Sigala & J. Duncan (2009). Evidence for long-range feedback in target detection: Detection of semantic targets modulates activity in early visual areas, Neuropsychologia 47(7):1721-7

  1. N. Sigala, M. Kusunoki, I. Nimmo-Smith, D. Gaffan & J. Duncan (2008). Hierarchical coding for sequential task events in the monkey prefrontal cortex, Proc. Natl. Acad. Sci. USA, 105(33): 11969-74

  1. Z. Kaldy & N. Sigala (2004). The neural mechanisms of object working memory: what is where in the infant brain. Neuroscience and Biobehavioral Reviews, 28: 113-121

  1. N. Sigala (2004). Visual categorization and the inferior temporal cortex. Behavioural Brain Research, 149(1): 1-7

  1. N. Sigala & N.K. Logothetis (2002). Visual categorization shapes feature selectivity in the primate temporal cortex, Nature, 415(6869): 318-320

  1. N. Sigala, F. Gabbiani, N.K. Logothetis (2002). Visual object categorization and representation in monkeys and humans. Journal of Cognitive Neuroscience, 14(2): 187-1981

CONFERENCE ABSTRACTS

1. N. Sigala, M Kusunoki, H. Nili, I. Nimmo-Smith, D. Gaffan & J. Duncan (2009), Talk: Evidence for hemisphere-specific processes in the prefrontal cortex, Integrated Approaches to Brain Complexity, Cold Spring Harbor/Welcome Trust conference, Hinxton, UK

2. S. Stoewer, S-P Ku, J. Goense, N.K. Logothetis, J. Duncan & N. Sigala (2009), Frontoparietal activity with minimal decision and control in the awake macaque at 7T. Program No.677.16. Abstract Viewer/Itinerary Planner. Washington, DC: Society for Neuroscience

3. M. Kusunoki, N. Sigala, H. Nili, M. Kadohisa, D. Gaffan, J. Duncan (2009), Target detection by opponent coding in monkey prefrontal cortex. Program No.677.14. Abstract Viewer/Itinerary Planner. Washington, DC: Society for Neuroscience

4. S. Stoewer, J. Duncan, A. Bartels, G.A. Keliris, N.K. Logothetis, N. Sigala (2009). SANDBOX, an interactive fMRI data visualization toolbox. Program No. 64. Cambridge Neuroscience Seminar, UK.

5. N. Sigala, M.Kusunoki, I. Nimmo-Smith, D. Gaffan, J. Duncan (2008). Talk: Hierarchical coding for sequential task events in the monkey prefrontal cortex. Program No.418.7. Abstract Viewer/Itinerary Planner. Washington, DC: Society for Neuroscience

6. M.Kusunoki, N. Sigala, D. Gaffan, J. Duncan (2008). Response of neurons in the monkey prefrontal cortex during learning of new cue-target associations Program No. 418.8. Abstract Viewer/Itinerary Planner. Washington, DC: Society for Neuroscience

7. N. Sigala (2008) Hierarchical coding for sequential task events in the monkey prefrontal cortex. Poster presented at the Frontiers of Science meeting, organised by the Royal Society and JSPS in Japan.

8. M.Kusunoki, N. Sigala, D. Gaffan, J. Duncan (2008). Neural response to fixed and cued target search tasks in the monkey prefrontal cortex. Japan Neuroscience Society

9. N. Sigala, M. Kusunoki, I. Nimmo-Smith, D. Gaffan & J. Duncan (2007). Poster: Neural coding for sequential events in the monkey prefrontal cortex. Integrative Approaches to Brain Complexity, CSHL/Welcome Trust meeting, Hinxton, UK.

10. M.Kusunoki, N. Sigala, D. Gaffan, J. Duncan (2006). Poster: Trial-by-trial reorganization on stimulus classification in the monkey prefrontal cortex. Program No. 573.3. Abstract Viewer/Itinerary Planner. Washington, DC: Society for Neuroscience

11. D. Gaffan, N. Sigala, M. Kusunoki, J. Duncan (2005). Poster: Cue-target association in the neural activity of the monkey prefrontal cortex. Program No. 195.3. Abstract Viewer/Itinerary Planner. Washington, DC: Society for Neuroscience.

12. M. Kusunoki, N. Sigala, D. Gaffan, J. Duncan (2004). Poster: The effect of task conditions on the response of lateral prefrontal neurons in the paired associate task. Program No. 324.2. Abstract Viewer/Itinerary Planner. Washington, DC: Society for Neuroscience.

13. N. Sigala, M. Kusunoki, D. Gaffan, J. Duncan (2003). Poster: Task relevance and cue-target association in the monkey prefrontal cortex. Program 180.8. Abstract Viewer/Itinerary Planner. Washington, DC: Society for Neuroscience.

14. N. Sigala & N.K. Logothetis (2002). Poster: Visual categorization shapes feature selectivity in the primate temporal and prefrontal cortex. Neural Information and Coding, Les Houches, France.

15. N. Sigala & N.K. Logothetis (2001). Visual categorization shapes feature selectivity in the primate temporal and prefrontal cortex. Physiology of Cognitive Processes meeting of the Royal Society, London, UK.

16. N. Sigala& N.K. Logothetis (2001). Talk: Effects of categorization training on the neuronal representation of visual stimuli. Program No. 122.8. Abstract Viewer/Itinerary Planner. Washington, DC: Society for Neuroscience.

17. K. Kirschfeld, N. Sigala, N.K. Logothetis (2001). Poster: Natural images: a lingua franca for primates? Program No. 188.2. Abstract Viewer/Itinerary Planner.Washington, DC: Society for Neuroscience.

18. N. Sigala& N.K. Logothetis (2001). Effects of categorization training on the neuronal representation of visual stimuli. Washington, DC: Society for Neuroscience.

19. N. Sigala, F. Gabbiani, N.K. Logothetis (2001). Effects of visual categorization on object representation in humans and rhesus monkeys. Tuebingen Perception Conference.

20. N. Sigala, F. Gabbiani, N.K. Logothetis (2000). Categorization of visual stimuli by humans and monkeys. Washington, DC: Society for Neuroscience.

21. N. Sigala, F. Gabbiani, N.K. Logothetis (2000). Visual object categorization and representation in humans and rhesus monkeys. Hellenic Society for Neuroscience.

22. N. Sigala, F. Gabbiani, N.K. Logothetis (2000). Classification of visual parameterized stimuli by humans and monkeys. Tuebingen Perception Conference.

23. N. Sigala, F. Gabbiani, N.K. Logothetis (1999). How do monkeys perceive Brunswik faces? Invest. Ophth. Vis. Sci. 40: (4) S348-S348 Mar 15.