We developed a behavioral paradigm for the rat that made it possible to separate the evaluation of memory functions from the evaluation of perceptual functions. Animals were given extensive training on an automated two-choice discrimination task and then maintained their memory performance at a high level while interpolated probe trials tested visual perceptual ability. The probe trials systema...

This study investigates the characteristics of space-borne Lightning Mapping Imager (LMI) lightning products and their relationships with cloud properties using ground-based total observations from Beijing Broadband Network (BLNET) information S-band Doppler radar data. LMI showed generally consistent spatial distributions those BLNET, yielded a considerable detection capability over regions co...

The US contribution to the ITASE program obtained shallow and deep radar profiles along its thousands of km of traverse during 1999–2003 over West Antarctica, and along its 1200 km traverse behind the Transantarctic Mountains in East Antarctica during 2006–2007. I discuss the shallow profiles, which used short-pulse radar operating at 400 MHz to profile depths of 56–135 m in West Antarctica, an...

Performance on tests of source memory is typically based on recollection of contextual information associated with an item. However, recent neuroimaging results have suggested that the perirhinal cortex, a region thought to support familiarity-based item recognition, may support source attributions if source information is encoded as a feature of the relevant item (i.e., "unitized"). The author...

Rats with lesions in the perirhinal cortex and their control group learnt to discriminate between mirror-imaged visual landmarks to find a submerged platform in a watermaze. Rats initially learnt this discrimination passively, in that they were repeatedly placed on the platform in one corner of a square watermaze with walls of different appearance, prior to swimming to that same location for th...

The perirhinal cortex is known to play a role in recognition memory and visual perception of objects. A recent single-unit recording study adds to our understanding of perirhinal cortex function, suggesting that it may also play a role in evaluating the significance of objects in a context-dependent manner.