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Direct linkLeal, Stephanie L.; Ferguson, Lorena A.; Harrison, Theresa M.; Jagust, William J. – Learning & Memory, 2019
Most tasks test memory within the same day, however, most forgetting occurs after 24 h. Further, testing memory for simple words or objects does not mimic real-world memory experiences. We designed a memory task showing participants video clips of everyday kinds of experiences, including positive, negative, and neutral stimuli, and tested memory…
Descriptors: Memory, Alzheimers Disease, Stimuli, Recognition (Psychology)
Montey, Karen L.; Eaton, Nicolette C.; Quinlan, Elizabeth M. – Learning & Memory, 2013
Severe amblyopia, characterized by a significant reduction in visual acuity through the affected eye, is highly resistant to reversal in adulthood. We have previously shown that synaptic plasticity can be reactivated in the adult rat visual cortex by dark exposure, and the reactivated plasticity can be harnessed to promote the recovery from severe…
Descriptors: Visual Acuity, Visual Impairments, Brain Hemisphere Functions, Animals
De Baene, Wouter; Ons, Bart; Wagemans, Johan; Vogels, Rufin – Learning & Memory, 2008
Primates can learn to categorize complex shapes, but as yet it is unclear how this categorization learning affects the representation of shape in visual cortex. Previous studies that have examined the effect of categorization learning on shape representation in the macaque inferior temporal (IT) cortex have produced diverse and conflicting results…
Descriptors: Animals, Brain, Brain Hemisphere Functions, Classification
Bartko, Susan J.; Winters, Boyer D.; Cowell, Rosemary A.; Saksida, Lisa M.; Bussey, Timothy J. – Learning & Memory, 2007
The perirhinal cortex (PRh) has a well-established role in object recognition memory. More recent studies suggest that PRh is also important for two-choice visual discrimination tasks. Specifically, it has been suggested that PRh contains conjunctive representations that help resolve feature ambiguity, which occurs when a task cannot easily be…
Descriptors: Visual Discrimination, Recognition (Psychology), Brain Hemisphere Functions, Memory
Lavenex, Pierre; Lavenex, Pamela Banta – Learning & Memory, 2006
This experiment assesses spatial and nonspatial relational memory in freely moving 9-mo-old and adult (11-13-yr-old) macaque monkeys ("Macaca mulatta"). We tested the use of proximal landmarks, two different objects placed at the center of an open-field arena, as conditional cues allowing monkeys to predict the location of food rewards hidden in…
Descriptors: Memory, Cues, Visual Discrimination, Spatial Ability
Minini, Loredana; Jeffery, Kathryn J. – Learning & Memory, 2006
Visual discrimination tasks are increasingly used to explore the neurobiology of vision in rodents, but it remains unclear how the animals solve these tasks: Do they process shapes holistically, or by using low-level features such as luminance and angle acuity? In the present study we found that when discriminating triangles from squares, rats did…
Descriptors: Animals, Cognitive Processes, Visual Stimuli, Visual Perception
