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Articles 1 - 5 of 5
Full-Text Articles in Social and Behavioral Sciences
Neurogenesis-Mediated Forgetting Minimizes Proactive Interference., Jonathan R Epp, Rudy Silva Mera, Stefan Köhler, Sheena A Josselyn, Paul W Frankland
Neurogenesis-Mediated Forgetting Minimizes Proactive Interference., Jonathan R Epp, Rudy Silva Mera, Stefan Köhler, Sheena A Josselyn, Paul W Frankland
Brain and Mind Institute Researchers' Publications
Established memories may interfere with the encoding of new memories, particularly when existing and new memories overlap in content. By manipulating levels of hippocampal neurogenesis, here we show that neurogenesis regulates this form of proactive interference. Increasing hippocampal neurogenesis weakens existing memories and, in doing so, facilitates the encoding of new, conflicting (but not non-conflicting) information in mice. Conversely, decreasing neurogenesis stabilizes existing memories, and impedes the encoding of new, conflicting information. These results suggest that reduced proactive interference is an adaptive benefit of neurogenesis-induced forgetting.
Comparing The Experiences And Withdrawal Considerations Of Treatment And Regular Foster Care Parents: The Canadian Perspective, Jessica Smith, Susan Rodger, Jason Brown, Laurel E. Pickel, Wendy Den Dunnen, Alan W. Leschied Dr.
Comparing The Experiences And Withdrawal Considerations Of Treatment And Regular Foster Care Parents: The Canadian Perspective, Jessica Smith, Susan Rodger, Jason Brown, Laurel E. Pickel, Wendy Den Dunnen, Alan W. Leschied Dr.
Journal Articles
This study investigated differences in the experiences of Canadian foster parents providing regular and treatment foster care and their consideration to withdraw from their position. Survey responses from 852 foster parents were analyzed subsequent to separating the participants into two groups based on the primary type of care they provided (regular N = 454; treatment N = 398). Results revealed that treatment foster care parents considered withdrawing at a higher rate compared to regular foster care parents. Subsequent analysis revealed numerous differences between the two groups regarding foster parents’ experiences in fostering and reasons to withdraw. The results are discussed …
Foster Parents' Experiences And Withdrawal Considerations: Comparing Treatment And Regular Foster Care, Jessica N. Smith
Foster Parents' Experiences And Withdrawal Considerations: Comparing Treatment And Regular Foster Care, Jessica N. Smith
Electronic Thesis and Dissertation Repository
The current study investigated differences between the experiences of foster parents providing regular and treatment foster care, and their consideration to withdraw from their position. Survey responses from 852 foster parents were analyzed subsequent to separating the participants into two groups based on the type of care they provided (regular N = 454; treatment N = 398). Results from a chi-square test for independence revealed a treatment foster care parents considered withdrawing more than regular foster care parents. Cross-tabulations and independent samples t-tests revealed numerous differences between the two groups regarding foster parents reasons to withdraw and experiences fostering. The …
Glutamate Receptors In Perirhinal Cortex Mediate Encoding, Retrieval, And Consolidation Of Object Recognition Memory., Boyer D Winters, Timothy J Bussey
Glutamate Receptors In Perirhinal Cortex Mediate Encoding, Retrieval, And Consolidation Of Object Recognition Memory., Boyer D Winters, Timothy J Bussey
Brain and Mind Institute Researchers' Publications
Object recognition is consistently impaired in human amnesia and animal models thereof. Results from subjects with permanent brain damage have revealed the importance of the perirhinal cortex to object recognition memory. Here, we report evidence from rats for interdependent but distinct stages in object recognition memory (encoding, retrieval, and consolidation), which require glutamate receptor activity within perirhinal cortex. Transient blockade of AMPA receptor-mediated synaptic transmission within perirhinal cortex disrupted encoding for short- and long-term memory as well as retrieval and consolidation. In contrast, transient NMDA receptor blockade during encoding affected only long-term object recognition memory; NMDA receptor activity was also …
Transient Inactivation Of Perirhinal Cortex Disrupts Encoding, Retrieval, And Consolidation Of Object Recognition Memory., Boyer D Winters, Timothy J Bussey
Transient Inactivation Of Perirhinal Cortex Disrupts Encoding, Retrieval, And Consolidation Of Object Recognition Memory., Boyer D Winters, Timothy J Bussey
Brain and Mind Institute Researchers' Publications
Damage to perirhinal cortex (PRh) impairs object recognition memory in humans, monkeys, and rats when tested in tasks such as delayed nonmatching to sample, visual paired comparison, and its rodent analog, the spontaneous object recognition task. In the present study, we have capitalized on the discrete one-trial nature of the spontaneous object recognition task to investigate the role of PRh in several distinct stages of object recognition memory. In a series of experiments, transient inactivation of PRh was accomplished with bilateral infusions of lidocaine directly into PRh immediately before the sample phase (encoding), immediately before the choice phase (retrieval), or …