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By demonstrating that fMRI responses in human MT+ increase linearly with motion coherence and comparing these responses with slopes of single-neuron firing rates in monkey MT, a new paper provides the best evidence so far that fMRI responses are proportional to firing rates.
Grant et. al. use mass spectroscopy to identify new components of the NMDA receptor-associated protein complex, revealing a more complex postsynaptic organization than previously thought.
Sea urchin eggs are an experimentally accessible preparation for studying the links between calcium-dependent exocytosis and endocytosis, which may also apply to synaptic vesicles.
Only one allelle from the odorant receptor gene family is expressed in each neuron. Transgenic expression of an odorant receptor provides new insight into how this process is regulated.