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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
Influence Of Oral Contraceptives On Alcohol Use In Young Adult Women, Ashley Strzelecki
Influence Of Oral Contraceptives On Alcohol Use In Young Adult Women, Ashley Strzelecki
Theses and Dissertations--Psychology
Rates of heavy drinking and Alcohol Use Disorder are rising dramatically in young adult women, making it important to better understand female-specific risks for problematic drinking. Circulating levels of ovarian hormones are one potential mechanism influencing alcohol use in women. Many young adult women use oral contraceptives (OCs) that alter endogenous hormone levels, and little is known about how OCs and the synthetic hormones they contain may influence alcohol use. This dissertation consists of three studies that investigated alcohol consumption in women using OCs and explored potential mechanisms through which OCs may influence alcohol use. Study 1 compared self-reported alcohol …
The 1-Back Matching/Mismatching Paradigm With Pigeons (Columba Livia): Evidence For Explicit Learning?, Daniel Peng
The 1-Back Matching/Mismatching Paradigm With Pigeons (Columba Livia): Evidence For Explicit Learning?, Daniel Peng
Theses and Dissertations--Psychology
With humans, a distinction can be made between explicit and implicit learning. language can be used to describe rule-based learning commonly seen in explicit, but not implicit learning. Unfortunately, we cannot do so with animals. Therefore, a non-verbal paradigm is needed to differentiate the types of learning. One method to make such a distinction is by training animals under a conditional discrimination task such as matching-to-sample with reinforcement delayed until a choice is made on the next trial: otherwise known as a 1-back procedure. In this experiment an alternating matching/mismatching to sample task under a 1-back schedule of reinforcement was …
Neural Hyperactivity During Value-Based Decision-Making In People With Daily/Near Daily Cannabis Use, Miranda Ramirez
Neural Hyperactivity During Value-Based Decision-Making In People With Daily/Near Daily Cannabis Use, Miranda Ramirez
Theses and Dissertations--Psychology
Value-based decision-making involves the coordinated effort of multiple brain regions to guide future choices based on past experiences. These processes are disrupted in cannabis use disorder, where individuals continue to use cannabis despite negative consequences. Reinforcement learning (RL) paradigms can be used to capture changes in the value of available options and may inform how the brain is impacted by frequent cannabis use. This study combined fMRI with behavioral modeling of probabilistic choice task data to compare value-based choices between young adults reporting daily/near daily cannabis use (CAN) and controls (CTRL). Participants selected one of two options reinforced ($0.25) at …