There has been a great deal of progress in understanding how complex objects, in particular, faces, are processed by humans.
The aim of this proposal is to extend recent work on computational models of emotion and face processing to account for recent data concerning face processing in brain-damaged patients and normal controls. In all of these studies, the goal is to understand to what extent face processing must be considered """"""""special"""""""", through modeling and experiment. Our specific goals are to: I) analyze the relationship between categorical perception of emotion in our models and in human subjects as elucidated by parallel experiments on the models and humans using identical stimuli; 2) understand further how specialized """"""""modules"""""""" may arise for face, object and expression recognition through combinations of competitive learning mechanisms and innate biases; 3) understand the effects of various kinds of 'brain damage"""""""" on our model, as a route to understanding patient behavior. These goals will be addressed through careful modeling studies guided by the data. Our hypotheses will be tested by constructing neural network models that process the same face images used in human studies.
| Hsiao, Janet H; Cipollini, Ben; Cottrell, Garrison W (2013) Hemispheric asymmetry in perception: a differential encoding account. J Cogn Neurosci 25:998-1007 |
| Nelson, Jonathan D; McKenzie, Craig R M; Cottrell, Garrison W et al. (2010) Experience matters: information acquisition optimizes probability gain. Psychol Sci 21:960-9 |
| Dailey, Matthew N; Joyce, Carrie; Lyons, Michael J et al. (2010) Evidence and a computational explanation of cultural differences in facial expression recognition. Emotion 10:874-93 |
| Hsiao, Janet H; Cottrell, Garrison W (2009) Not all visual expertise is holistic, but it may be leftist: the case of Chinese character recognition. Psychol Sci 20:455-63 |
| Kanan, Christopher; Tong, Mathew H; Zhang, Lingyun et al. (2009) SUN: Top-down saliency using natural statistics. Vis cogn 17:979-1003 |
| Hsiao, Janet Hui-wen; Cottrell, Garrison (2008) Two fixations suffice in face recognition. Psychol Sci 19:998-1006 |
| Zhang, Lingyun; Tong, Matthew H; Marks, Tim K et al. (2008) SUN: A Bayesian framework for saliency using natural statistics. J Vis 8:32.1-20 |
| McCleery, Joseph P; Zhang, Lingyun; Ge, Liezhong et al. (2008) The roles of visual expertise and visual input in the face inversion effect: behavioral and neurocomputational evidence. Vision Res 48:703-15 |
| Barrington, Luke; Marks, Tim K; Hsiao, Janet Hui-wen et al. (2008) NIMBLE: a kernel density model of saccade-based visual memory. J Vis 8:17.1-14 |
| Tong, Matthew H; Joyce, Carrie A; Cottrell, Garrison W (2008) Why is the fusiform face area recruited for novel categories of expertise? A neurocomputational investigation. Brain Res 1202:14-24 |
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