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voice in a crowd; binding across time is required for interpreting object motion; and cross-modal binding is Since its original formulation as a theoretical problem required to associate the sound of a ball striking a bat (von der Malsburg, 1981), " the binding problem " has with the visual percept of it, so that both are effortlessly captured the attention(More)
The retinotectal projection is the predominant model for studying molecular mechanisms controlling development of topographic axonal connections. Our analyses of topographic mapping of retinal ganglion cell (RGC) axons in chick optic tectum indicate that a primary role for guidance molecules is to regulate topographic branching along RGC axons, a process(More)
To distinguish areas involved in the processing of word meaning (semantics) from other regions involved in lexical processing more generally, subjects were scanned with positron emission tomography (PET) while performing lexical tasks, three of which required varying degrees of semantic analysis and one that required phonological analysis. Three closely(More)
introduction of a new area of intellectual and social dis-Adina Roskies course. Department of Linguistics and Philosophy As I see it, there are two main divisions of neuroethics: Massachusetts Institute of Technology the ethics of neuroscience and the neuroscience of eth-Cambridge, Massachusetts 02139 ics. Each of these can be pursued independently to a(More)
Although there is no clear concept of volition or the will, we do have intuitive ideas that characterize the will, agency, and voluntary behavior. Here I review results from a number of strands of neuroscientific research that bear upon our intuitive notions of the will. These neuroscientific results provide some insight into the neural circuits mediating(More)
In the early 1980s, Libet found that a readiness potential (RP) over central scalp locations begins on average several hundred milliseconds before the reported time of awareness of willing to move (W). Haggard and Eimer Exp Brain Res 126(1):128–133, (1999) later found no correlation between the timing of the RP and W, suggesting that the RP does not reflect(More)
Retinotopic map development in nonmammalian vertebrates appears to be controlled by molecules that guide or restrict retinal axons to correct locations in their targets. However, the retinotopic map in the superior colliculus (SC) of the rat is developed instead by a topographic bias in collateral branching and arborization. Temporal retinal axons extending(More)
All mature vertebrates exhibit precise topographic mapping from the retina to the tectum, or its mammalian homologue, the superior colliculus (SC). In frogs and fish the development of this projection is precise from the outset; in avians retinal axon targeting is more diffuse but respects a coarse topographic matching; and in rodents early projections show(More)
Recent developments in neuroscience raise the worry that understanding how brains cause behavior will undermine our views about free will and, consequently, about moral responsibility. The potential ethical consequences of such a result are sweeping. I provide three reasons to think that these worries seemingly inspired by neuroscience are misplaced. First,(More)
Brain images are used both as scientific evidence and to illustrate the results of neuroimaging experiments. These images are apt to be viewed as photographs of brain activity, and in so viewing them people are prone to assume that they share the evidential characteristics of photographs. Photographs are epistemically compelling, and have a number of(More)