Learn More
The Department of Homeland Security (DHS) and the United States Visitor and Immigrant Status Indicator Technology (US-VISIT) program is preparing to transition from a two print capture process to a 10-print slap capture process. In preparing for the 10-print pilot testing, a concern that the existing counters that house the fingerprint scanners are too tall(More)
This article is a transcription of an electronic symposium in which some active researchers were invited by the Brazilian Society for Neuroscience and Behavior (SBNeC) to discuss the last decade's advances in neurobiology of learning and memory. The way different parts of the brain are recruited during the storage of different kinds of memory (e.g.,(More)
In the present paper we describe five tests, 3 of which were designed to be similar to tasks used with rodents. Results obtained from control subjects, patients with selective thermo-coagulation lesions to the medial temporal lobe and results from non-human primates and rodents are discussed. The tests involve memory for spatial locations acquired by moving(More)
Rats were given continuous intraventricular infusion of saline or the thiol-proteinase inhibitor leupeptin, via subcutaneously implanted osmotic minipumps, while being trained on a spatial learning water task using spaced trials. Leupeptin caused overnight forgetting during training, but performance eventually reached asymptote in both groups. A retention(More)
We describe the development of a computer-generated arena within which one can study human place learning by asking subjects to locate an invisible target. A series of studies demonstrate that such learning is based on acquiring knowledge about the spatial relations among the distal cues presented in this arena. We show that (1) the presence of proximal(More)
This paper describes the development of a standards-based, repeatable, and reusable test and evaluation program for mobile biometric handheld devices. The goal is to develop a test framework based on cross-referenced, user-driven requirements and open, reusable test methods to determine if mobile biometric devices perform in accordance with their(More)
Data quality limits the accuracy of biometrics. Poor data quality is responsible for many or even most matching errors in biometric systems and may be the greatest weakness of some implementations. This paper uses an expansive view of data quality focused on its implications for operational databases and systems. Data quality is defined here not just in(More)
  • 1