Shape perception reduces activity in human primary visual cortex

By S. Murray, Daniel J. Kersten, Barbara Olshausen, Paul Schrater, D. Woods. 2002

516 citations recorded by the source corpus.

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In Cognitive Neuroscience

Citations in the corpus

Theory of Mind: A Neural Prediction Problem (2013, positive): “Only when the environment supports specific, low-level predictions (on the scale of e.g., orientation and contrast at specific points in retinotopy) should error signals be observed at lower levels of processing (Alink et al., 2010; e.g., Murray et al., 2002; Weiner et al., 2010).”
Free-energy and the brain (2007, methodology): “Murray et al. (2002) used functional MRI to measure responses in V1 and a higher object processing area, the lateral occipital complex, to visual elements that were either grouped into objects or arranged randomly.”
Real-time classification and sensor fusion with a spiking deep belief network (2013, background): “…and Martin, 2009; Douglas and Martin, 2011; Markov et al., 2012), and in vivo experiments (Lamme et al., 1998; Kosslyn et al., 1999; Bullier, 2001; Murray et al., 2002), but the precise role of feed-back processing is still debated (Lamme et al., 1998; Bullier, 2001; Kersten and Yuille, 2003).”
Reconciling Predictive Coding and Biased Competition Models of Cortical Function (2008, background): “Previously, the predictive coding model has been considered to be compatible with the fMRI data showing suppression of responses in early visual processing stages due to the mechanism of error-detection node suppression (Harrison et al., 2007; Murray et al., 2002; Olshausen, 2003).”
Perceived Shape Similarity among Unfamiliar Objects and the Organization of the Human Object Vision Pathway (2008, background): “The lateral occipital complex (LOC), a large region in human ventral visual cortex, plays a central role in the perception of object shape (Malach et al., 1995; Grill-Spector et al., 1998b; Murray et al., 2002; Grill-Spector and Malach, 2004).”
Functional and Effective Connectivity: A Review (2011, unknown): “Many current formulations of perceptual inference and learning can be cast in terms of minimizing prediction error (e.g., Ballard et al., 1983; Dayan et al., 1995; Mumford, 1992; Murray et al., 2002; Rao and Ballard, 1998) or, more generally, surprise (Friston et al.”
Concurrent Repetition Enhancement and Suppression Responses in Extrastriate Visual Cortex (2012, background): “Cerebral Cortex September 2013, V 23 N 9 2241”
Object perception as Bayesian inference. (2004, methodology): “\Explaining away" occurs in discounting the e(cid:11)ects of occlusion, and when simple high-level object descriptions overide more complex interpretations of line arrangements or moving dots (Lorenceau & Shi(cid:11)rar 1992, McDermott et al 2001, Murray et al 2002).”
Less Is More: Expectation Sharpens Representations in the Primary Visual Cortex (2012, unknown): “…the predictable, and hence redundant, neural responses in early sensory regions that are consistent with current high level expectations (Mumford, 1992; Murray et al., 2002; Rao and Ballard, 1999), resulting in a sparse and efficient coding scheme (Jehee et al., 2006; Olshausen and Field, 1996).”
Predictive Feedback Can Account for Biphasic Responses in the Lateral Geniculate Nucleus (2009, result): “Consistent with this, recent fMRI studies have shown that increased activity in higher-level areas accompanies decreased responses in lower-level areas, presumably due to feedback processing [51–53].”
A critique of functional localisers (2006, background): “One would then have presumably seen that early extrastriate cortices were more sensitive to contours (i.e., depth) and that higher visual areas preferred shapes (e.g., Murray et al., 2002).”
The free-energy principle: a unified brain theory? (2010, unknown): “This scheme has been invoked to explain many features of early visual response”
Opposite modulation of high- and low-level visual aftereffects by perceptual grouping (2012, unknown): “We observed a BOLD signal increase in the LO and a concurrent signal decrease in V1 when visual elements were assembled into a coherent shape [14, 15].”
A theory of cortical responses (2005, methodology): “Murray et al. (2002) used MRI to measure responses in V1 and a higher object processing area, the lateral occipital complex, to visual elements that were either grouped into objects or arranged randomly.”
The sense of self in the phenomenology of agency and perception (2007, background): “…next level up; in this way predictive coding can enable percepts to be built up in stages beginning with very primitive components such as lines at different orientations and ending with very complex, category-specific percepts such as bicycles (see, e.g., Rao and Ballard 1999; Murray et al. 2002).”
Stimulus Predictability Reduces Responses in Primary Visual Cortex (2010, background): “, 2008) and less to grouped than to randomly arranged objects (Murray et al., 2002).”