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Articles 1 - 7 of 7
Full-Text Articles in Biological Psychology
Is Executive Function The Universal Acid?, Stephen J. Morse
Is Executive Function The Universal Acid?, Stephen J. Morse
All Faculty Scholarship
This essay responds to Hirstein, Sifferd and Fagan’s book, Responsible Brains (MIT Press, 2018), which claims that executive function is the guiding mechanism that supports both responsible agency and the necessity for some excuses. In contrast, I suggest that executive function is not the universal acid and the neuroscience at present contributes almost nothing to the necessary psychological level of explanation and analysis. To the extent neuroscience can be useful, it is virtually entirely dependent on well-validated psychology to correlate with the neuroscientific variables under investigation. The essay considers what executive function is and what the neuroscience adds to our …
Development Of Prefrontal Structure And Connectivity In Typical Children And Children With Adhd: Association With Language And Executive Function, Dea Garic
FIU Electronic Theses and Dissertations
The structure and connectivity of the prefrontal cortex has been extensively studied for its contribution to language and executive function (EF) development, but many questions still remain whether its microstructural tissue properties can reliably predict behavioral outcomes in very young typically and atypically developing populations. In particular, the bilateral frontal aslant tract (FAT) has garnered increasing interest with respect to its potential association with both language and EF, but has yet to be examined in childhood attention disorders, such Attention Deficit Hyperactivity Disorder (ADHD). At the same time, with advances in diffusion weighted imaging (DWI), new diffusion models offer more …
The Role Of Dopamine In Decision Making Processes In Drosophila Melanogaster, Michelle C. Bowers
The Role Of Dopamine In Decision Making Processes In Drosophila Melanogaster, Michelle C. Bowers
Undergraduate Honors Theses
Understanding the neural processes that mediate decision making is a relatively new field of investigation in the scientific community. With the ultimate goal of understanding how humans decide between one path and another, simpler models such as Drosophila Melanogaster, the common fruit fly, are often utilized as a way of determining the neural circuits involved in these decision-making processes. One of the most important decisions flies make is the decision of where to lay their eggs (oviposit). Choosing the proper substrate upon which to lay eggs is a crucial decision that can ultimately impact their fecundity. This paper investigates the …
Putting 'Dopamine Overdose' To The Test: A Psychopharmacological Investigation In Parkinson's Disease And Healthy Volunteers, Andrew Vo
Electronic Thesis and Dissertation Repository
Dopaminergic therapy prescribed to address motor symptoms in Parkinson’s disease (PD) is done at the expense of some cognition functions. It has been hypothesized that whether a given function is improved or impaired by medication depends on the baseline dopamine levels within underlying brain regions. Areas most affected by PD and severely dopamine depleted are predicted to benefit from dopaminergic therapy. Regions with less dopamine deficiency are predicted to worsen from excessive dopamine stimulation. This theoretical framework is known as the dopamine overdose hypothesis. The central aim of this thesis was to critically test the straightforward predictions put forward by …
The Action-Perception Of Musical Rhythm: A Review Of Eeg Findings, Jordan Anderson
The Action-Perception Of Musical Rhythm: A Review Of Eeg Findings, Jordan Anderson
Summer Research
Electroencephalography (EEG) research has the potential to illuminate questions of connectivity and temporal dynamics during musical rhythm perception. The phenomenon of sensorimotor synchronization observed when humans time their movements to rhythmic auditory stimuli reveals that these actions predict, rather than respond, to the beat. The phase entrainment of oscillatory activity measured by EEG and predictive modulation of beta band power offer cognitive insights to the auditory-motor relationship. Two main approaches exist to understand beat perception: motor simulation theories and dynamical systems theories. The study of mu wave suppression, considered a marker for mirror activity, has the potential to elucidate the …
Mechanisms Of Value-Biased Prioritization In Fast Sensorimotor Decision Making, Kivilcim Afacan-Seref
Mechanisms Of Value-Biased Prioritization In Fast Sensorimotor Decision Making, Kivilcim Afacan-Seref
Dissertations and Theses
In dynamic environments, split-second sensorimotor decisions must be prioritized according to potential payoffs to maximize overall rewards. The impact of relative value on deliberative perceptual judgments has been examined extensively, but relatively little is known about value-biasing mechanisms in the common situation where physical evidence is strong but the time to act is severely limited. This research examines the behavioral and electrophysiological indices of how value biases split-second perceptual decisions and the possible mechanisms underlying the process. In prominent decision models, a noisy but statistically stationary representation of sensory evidence is integrated over time to an action-triggering bound, and value-biases …
Covid-19, Evolution, Brains And Psychology, Frederick Toates
Covid-19, Evolution, Brains And Psychology, Frederick Toates
Animal Sentience
Attention needs to be directed to the processes that control behavior in humans and the adaptive problems that they solved in our early evolutionary environment. The evolutionary mismatch between the current environment and the human brain can yield important insights into the problems that beset us in the context of environmental degradation and nonhuman animal welfare.