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Combinatorial analysis of sequential firing patterns across multiple neurons decoding memory of sequential spatial experience in rat hippocampus
(Massachusetts Institute of Technology, 2003)
There is broad agreement that the hippocampus is crucially involved in the formation of richly-detailed, long term memories of events in humans. A key aspect of such memories is the temporal order and spatial context of ...
Article semantics in second language acquisition
(Massachusetts Institute of Technology, 2003)
This thesis examines article choice and parameter-setting in second language (L2) acquisition. It argues, on the basis of L2-English elicitation and production data, that L2- learners have access to UG-based semantic ...
Seeking the neural basis of grammar : English noun and verb morphological processing investigated with rapid event-related fMRI and intracortical electrophysiology
(Massachusetts Institute of Technology, 2003)
(cont.) the functionality of the fMRI data analysis and visualization tools used at Massachusetts General Hospital. I analyze and interpret an 18-subject fMRI experiment I ran using the new task design and software tools. ...
What functional magnetic resonance imaging can tell us about theory of mind
(Massachusetts Institute of Technology, 2003)
To have a theory of mind is to be able to explain and predict human behaviours and experiences in terms of mental states: beliefs, desires, goals, thoughts, and feelings. In chapters 1 and 2, I use functional magentic ...
Influence of the structure of the orientation preference map on the responses of V1 neurons
(Massachusetts Institute of Technology, 2003)
The large majority of inputs to primary visual cortex (V1) neurons arise from the dense local projections of neighboring neurons. Although several proposals have been made, it is not known what role these connections play ...
Visual perception and representation of objects and faces
(Massachusetts Institute of Technology, 2003)
Interpreting the results of visual object perception experiments is too often ill-posed due to the disparate and sparse choice of stimuli. To address this problem, we have developed a flexible new technique called Random ...
Investigations of the cognitive and neural processes supporting memory for neutral and emotional words
(Massachusetts Institute of Technology, 2003)
The cognitive and neural processes underlying memory formation may differ depending on the vividness, or detail, of information encoded. In Chapter 1, a divided attention paradigm was used to examine memory formation when ...
From representation to recognition : MEG studies of face perception
(Massachusetts Institute of Technology, 2003)
Face recognition is one of the most important problems our visual system must solve. Here I used magnetoencephalography (MEG) in an effort to characterize the sequence of cognitive and neural processes underlying this ...
Practical probabilistic inference
(Massachusetts Institute of Technology, 2003)
The design and use of expert systems for medical diagnosis remains an attractive goal. One such system, the Quick Medical Reference, Decision Theoretic (QMR-DT), is based on a Bayesian network. This very large-scale network ...