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Combined effects of the contraceptive hormones, ethinyl estradiol and levonorgestrel, on the use of place and response memory in gonadally-intact female rats

Author(s): Lacasse JM; Boulos V; Fisher C; Hamilton S; Heron M; Mac Cionnaith CE; Peronace V; Tito N; Brake WG;

During maze navigation rats can rely on hippocampus-mediated place memory or striatum-mediated response memory. Ovarian hormones bias whether females use place or response memory to reach a reward. Here, we investigated the impact of the contraceptive hormones, ethinyl estradiol (EE) and levonorg ...

Article GUID: 36403510


Parvalbumin interneuron loss mediates repeated anesthesia-induced memory deficits in mice

Author(s): Roque PS; Thörn Perez C; Hooshmandi M; Wong C; Eslamizade MJ; Heshmati S; Brown N; Sharma V; Lister KC; Goyon VM; Neagu-Lund L; Shen C; Daccache N; Sato H; Sato T; Mogil JS; Nader K; Gkogkas CG; Iordanova MD; Prager-Khoutorsky M; McBride ...

Repeated or prolonged, but not short-term, general anesthesia during the early postnatal period causes long-lasting impairments in memory formation in various species. The mechanisms underlying long-lasting impairment in cognitive function are poorly understood. Here, we show that repeated genera ...

Article GUID: 36394958


Sex-Linked Biology and Gender-Related Research Is Essential to Advancing Hearing Health

Author(s): Reavis KM; Bisgaard N; Canlon B; Dubno JR; Frisina RD; Hertzano R; Humes LE; Mick P; Phillips NA; Pichora-Fuller MK; Shuster B; Singh G;

There is robust evidence that sex (biological) and gender (behavioral/social) differences influence hearing loss risk and outcomes. These differences are noted for animals and humans-in the occurrence of hearing loss, hearing loss progression, and response to interventions. Nevertheless, many stu ...

Article GUID: 36384870


Insights on the COVID-19 pandemic: Youth engagement through photovoice

Author(s): Pickering CJ; Al-Baldawi Z; McVean L; Adan M; Amany RA; Al-Baldawi Z; Baker L; O' Sullivan T;

Youth engagement in disaster risk reduction is a growing area of research, practice and policy. The COVID-19 pandemic highlighted the need for improved opportunities for youth to participate and have their voices heard. Our Photovoice study explores experiences, perceptions, and insights of youth ...

Article GUID: 36373152


Optogenetic stimulation of infralimbic cortex projections to the paraventricular thalamus attenuates context-induced renewal

Author(s): Brown A; Chaudhri N;

Contexts associated with prior reinforcement can renew extinguished conditioned responding. The prelimbic (PL) and infralimbic (IL) cortices are thought to mediate the expression and suppression of conditioned responding, respectively. Evidence suggests that PL inputs to the paraventricular nucleus of the thalamus (PVT) drive the expression of cue-induced ...

Article GUID: 36373226


Calcium activity is a degraded estimate of spikes

Author(s): Hart EE; Gardner MPH; Panayi MC; Kahnt T; Schoenbaum G;

Recording action potentials extracellularly during behavior has led to fundamental discoveries regarding neural function-hippocampal neurons respond to locations in space,1 motor cortex neurons encode movement direction,2 and dopamine neurons signal reward prediction errors3-observations undergirding current theories of cognition,4 movement,5 and learning ...

Article GUID: 36368324


Cancer Survivors' Evolving Perceptions of a New Supportive Virtual Program

Author(s): Robb A; Brown TL; Durand A; Loiselle CG;

This qualitative study begins to explore cancer survivors' evolving perceptions of "Focus on the Future," a 6-week supportive virtual program led by trained volunteers and health care professionals. Through purposive sampling, participants (n = 10) enrolled in the program were individually interviewed shortly before attending, mid-way through, and at ...

Article GUID: 36354724


Social Interaction Profiles Among Youth with Intellectual Disabilities: Associations with Indicators of Psychosocial Adjustment

Author(s): Dubé C; Morin AJS; Tóth-Király I; Olivier E; Tracey D; McCune VS; Craven RG; Maïano C;

This study investigates the nature of the social interaction profiles observed among youth with intellectual disabilities (ID), defined while considering their relationships with their parents, peers, and teachers, as well as the implication of these profiles for self-esteem, aggressive behaviors, and prosocial behaviors. A sample of 393 youth with mild ( ...

Article GUID: 36342629


The Recruitment of a Neuronal Ensemble in the Central Nucleus of the Amygdala During the First Extinction Episode Has Persistent Effects on Extinction Expression

Author(s): Lay BPP; Koya E; Hope BT; Esber GR; Iordanova MD;

Background: Adaptive behavior depends on the delicate and dynamic balance between acquisition and extinction memories. Disruption of this balance, particularly when the extinction of memory loses control over behavior, is the root of treatment failure of maladaptive behaviors such as substance abuse or anxiety disorders. Understanding this balance require ...

Article GUID: 36336498


An Intensive Ambulatory Care Program for Adolescents With Eating Disorders Combining In-Person and Web-Based Care: Protocol for a Single-Site Naturalistic Trial

Author(s): Novack K; Dufour R; Picard L; Booij L; Chadi N;

Background: The incidence of eating disorders (EDs) among adolescents has significantly increased since the beginning of the COVID-19 pandemic. Hybrid care, which combines web-based and in-person modalities, is a promising approach for adolescents with EDs but remains understudied in this population. Objective: We aimed to implement a novel hybrid (web-b ...

Article GUID: 36322118


Learning processes in relapse to alcohol use: lessons from animal models

Author(s): Valyear MD; LeCocq MR; Brown A; Villaruel FR; Segal D; Chaudhri N;

Rationale: Alcohol use is reliably preceded by discrete and contextual stimuli which, through diverse learning processes, acquire the capacity to promote alcohol use and relapse to alcohol use. Objective: We review contemporary extinction, renewal, reinstatement, occasion setting, and sex differences research within a conditioning framework of relapse to ...

Article GUID: 36264342


Sexually dimorphic role of circadian clock genes in alcohol drinking behavior

Author(s): Nuria de Zavalia

Sex differences in alcohol use and abuse are pervasive and carry important implications for the prevention and treatment of alcohol use disorder (AUD), yet insight into underlying sexually dimorphic mechanisms is limited. Growing experimental and clinical evidence points to an important influence of circadian rhythms and circadian clock genes in the contr ...

Article GUID: 36184679


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