Learn More
Electric fields applied to brain tissue will affect cellular properties. They will hyperpolarise the ends of cells closest to the positive part of the field, and depolarise ends closest to the negative. In the case of neurons this affects excitability. How these changes in transmembrane potential are distributed depends on the length constant of the neuron,(More)
In 3 experiments, this article compares how overhearers interpreted second speakers' contributions to a conversation depending on whether the second speaker responded to a first speaker immediately; paused and responded; said um and responded; or said um, paused, and then responded. The conversational snippets tested were unscripted and diverse; an example(More)
A growing body of work has highlighted the challenges of identifying the stance that a speaker holds towards a particular topic, a task that involves identifying a holistic subjective disposition. We examine stance classification on a corpus of 4873 posts from the debate website ConvinceMe.net, for 14 topics ranging from the playful to the ideological. We(More)
The effect of quinine on pyramidal cell intrinsic properties, extracellular potassium transients, and epileptiform activity was studied in vitro using the rat hippocampal slice preparation. Quinine enhanced excitatory post-synaptic potentials and decreased fast- and slow-inhibitory post-synaptic potentials. Quinine reduced the peak potassium rise following(More)
The abductor digiti minimi of a patient had undergone partial denervation with some subsequent re-innervation. Cooling of the muscle caused a severe reduction in the EMG and force which accompanied either voluntary effort or tetanic nerve stimulation, but it had little effect on the response to single stimuli. The ineffectual attempts at voluntary(More)
F waves have been recorded from hand or leg muscles following surgical section or traumatic avulsion of dorsal roots. It has been found that under these conditions F wave size can still be changed by manoeuvres which influence motor neuron excitability but that the size and direction of the changes are variable and may be dependent on the resting level of(More)
1. Post-stimulus histograms of neuronal activity, constructed from extracellular recordings in decerebrate, decerebellate cats, have been used to investigate the responsiveness of neurons in nucleus reticularis gigantocellularis following their excitation by a peripheral nerve stimulus. 2. The response to a testing stimulus applied to a peripheral nerve was(More)
The Bureau of Labor Statistics (BLS) is developing a Computer-Assisted Data Collection (CADC) instrument for the Commodities and Services (C&S) survey for the Consumer Price Index (CPI). The instrument must be flexible enough to handle a variety of procedures and situations, but it must also be logical and useful for the data collectors and provide tools to(More)
Fast, rhythmic discharges, at gamma frequencies, have been evoked in the CA1 region of the hippocampus by tetanic stimulation applied via pairs of electrodes placed close to the pyramidal layer. The discharges had a latency of 65-225 ms and a frequency of 60-100 Hz; they were synchronous (phase lag < 2 ms) when recorded from sites 0.4-0.8 mm apart. Diazepam(More)
Public government web sites offer a promise of quick, convenient, and easy access to information and services. This has led many governments to push for an unprecedented move of publications, forms, and other information and services to this medium. There are many design challenges in developing public government web sites. In this SIG we aim to identify(More)