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Schultz, Heidrun; Sommer, Tobias; Peters, Jan – Learning & Memory, 2022
During associative retrieval, the brain reinstates neural representations that were present during encoding. The human medial temporal lobe (MTL), with its subregions hippocampus (HC), perirhinal cortex (PRC), and parahippocampal cortex (PHC), plays a central role in neural reinstatement. Previous studies have given compelling evidence for…
Descriptors: Brain Hemisphere Functions, Word Recognition, Recall (Psychology), Cognitive Processes
Koch, Griffin E.; Akpan, Essang; Coutanche, Marc N. – Learning & Memory, 2020
The features of an image can be represented at multiple levels--from its low-level visual properties to high-level meaning. What drives some images to be memorable while others are forgettable? We address this question across two behavioral experiments. In the first, different layers of a convolutional neural network (CNN), which represent…
Descriptors: Prediction, Memory, Brain Hemisphere Functions, Task Analysis
Robin, Jessica; Olsen, Rosanna K. – Learning & Memory, 2019
How do we form mental links between related items? Forming associations between representations is a key feature of episodic memory and provides the foundation for learning and guiding behavior. Theories suggest that spatial context plays a supportive role in episodic memory, providing a scaffold on which to form associations, but this has mostly…
Descriptors: Memory, Cognitive Processes, Association (Psychology), Inferences
Rungratsameetaweemana, Nuttida; Squire, Larry R. – Learning & Memory, 2018
The hippocampus has long been recognized as important for the formation of long-term memory. Recent work has suggested that the hippocampus might also be important for certain kinds of spatial operations, as in constructing scenes, shifting perspective, or perceiving the geometry of scenes and their boundaries. We explored this proposal using a…
Descriptors: Brain Hemisphere Functions, Neurological Impairments, Visual Stimuli, Comparative Analysis
Smith, Christine N.; Squire, Larry R. – Learning & Memory, 2017
Eye movements can reflect memory. For example, participants make fewer fixations and sample fewer regions when viewing old versus new scenes (the repetition effect). It is unclear whether the repetition effect requires that participants have knowledge (awareness) of the old-new status of the scenes or if it can occur independent of knowledge about…
Descriptors: Eye Movements, Brain Hemisphere Functions, Memory, Decision Making
Leal, 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)
Cohen, Justine E.; Ross, Robert S.; Stern, Chantal E. – Learning & Memory, 2018
Previous research has demonstrated that areas in the medial temporal lobe and prefrontal cortex (PFC) show increased activation during retrieval of overlapping sequences. In this study, we designed a task in which degree of overlap varied between conditions in order to parse out the contributions of hippocampal and prefrontal subregions as overlap…
Descriptors: Prediction, Brain Hemisphere Functions, Visual Stimuli, Diagnostic Tests
Warren, David E.; Duff, Melissa C.; Cohen, Neal J.; Tranel, Daniel – Learning & Memory, 2015
The hippocampus has recently been implicated in the brief representation of visual information, but its specific role is not well understood. We investigated this role using a paradigm that distinguishes quantity and quality of visual memory as described in a previous study. We found that amnesic patients with bilateral hippocampal damage (N = 5)…
Descriptors: Brain Hemisphere Functions, Visual Stimuli, Role, Memory
Huff, Mary L.; Emmons, Eric B.; Narayanan, Nandakumar S.; LaLumiere, Ryan T. – Learning & Memory, 2016
The basolateral amygdala (BLA) modulates memory consolidation for a variety of types of learning, whereas other brain regions play more selective roles in specific kinds of learning suggesting a role for differential consolidation via distinct BLA pathways. The ventral hippocampus (VH), an efferent target of the BLA, has been suggested to…
Descriptors: Memory, Learning Processes, Brain Hemisphere Functions, Animals
Singer, Bryan F.; Bryan, Myranda A.; Popov, Pavlo; Scarff, Raymond; Carter, Cody; Wright, Erin; Aragona, Brandon J.; Robinson, Terry E. – Learning & Memory, 2016
The sensory properties of a reward-paired cue (a conditioned stimulus; CS) may impact the motivational value attributed to the cue, and in turn influence the form of the conditioned response (CR) that develops. A cue with multiple sensory qualities, such as a moving lever-CS, may activate numerous neural pathways that process auditory and visual…
Descriptors: Food, Cues, Influences, Brain Hemisphere Functions
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
Hindley, Emma L.; Nelson, Andrew J. D.; Aggleton, John P.; Vann, Seralynne D. – Learning & Memory, 2014
The retrosplenial cortex supports navigation, with one role thought to be the integration of different spatial cue types. This hypothesis was extended by examining the integration of nonspatial cues. Rats with lesions in either the dysgranular subregion of retrosplenial cortex (area 30) or lesions in both the granular and dysgranular subregions…
Descriptors: Brain Hemisphere Functions, Animals, Cues, Hypothesis Testing
Lee, Inah; Shin, Ji Yun – Learning & Memory, 2012
The exact roles of the medial prefrontal cortex (mPFC) in conditional choice behavior are unknown and a visual contextual response selection task was used for examining the issue. Inactivation of the mPFC severely disrupted performance in the task. mPFC inactivations, however, did not disrupt the capability of perceptual discrimination for visual…
Descriptors: Visual Stimuli, Cues, Visual Perception, Task Analysis
Cazakoff, Brittany N.; Howland, John G. – Learning & Memory, 2011
Mechanisms consistent with long-term depression in the perirhinal cortex (PRh) play a fundamental role in object recognition memory; however, whether AMPA receptor endocytosis is involved in distinct phases of recognition memory is not known. To address this question, we used local PRh infusions of the cell membrane-permeable Tat-GluA2[subscript…
Descriptors: Recognition (Psychology), Depression (Psychology), Brain Hemisphere Functions, Role
Gottlieb, Lauren J.; Rugg, Michael D. – Learning & Memory, 2011
Prior research has demonstrated that the neural correlates of successful encoding ("subsequent memory effects") partially overlap with neural regions selectively engaged by the on-line demands of the study task. The primary goal of the present experiment was to determine whether this overlap is associated solely with encoding processes supporting…
Descriptors: Familiarity, Recognition (Psychology), Neurological Organization, Brain Hemisphere Functions
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