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Neuroscience and Neurobiology Commons™
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Articles 1 - 30 of 92
Full-Text Articles in Neuroscience and Neurobiology
Creativity, Laterality And Critical State Balance In Learning, Jenny Rock, Asher Flatt
Creativity, Laterality And Critical State Balance In Learning, Jenny Rock, Asher Flatt
The STEAM Journal
Understanding the intersecting cognitive pathways that are integral to ways of thinking, creating and functioning in both art and science is an important grounding for a STEAM educational approach. We combine three divergent concepts, including creativity, hemisphere laterality, and critical state theory, to argue for a more balanced approach to learning as part of a modern meaning-centered education in STEAM. Reviewing the concept of hemisphere laterality, or how the two hemispheres of our brain have different (though not disconnected) ways of processing sensory information, we note how these two means of interpreting the world have become unbalanced in traditional modes …
Modeling Aggregation Of Proliferating Microglia In Response To Amyloid-Beta In Dementia, Adrienne C. Kinney, Ellen R. Swanson
Modeling Aggregation Of Proliferating Microglia In Response To Amyloid-Beta In Dementia, Adrienne C. Kinney, Ellen R. Swanson
Spora: A Journal of Biomathematics
Amyloid-beta plaques are prominent biological markers in dementia brains. In response to plaque formation, the brain's immune cells, microglia, become reactive. Microglia are measurable cells that surround amyloid-beta plaques, indicating their location. A system of partial differential equations describes the concentration of microglia in dementia brains by incorporating chemotactic signaling. However, this system fails to incorporate increasing numbers of reactive microglia cells in response to amyloid-beta aggregation. A system of ordinary differential equations describing the number of significant cells and proteins in the brain suggests the amount of reactive microglia increases significantly during the progression of dementia. We couple these …
Mental Illness And The Grace Of God, Laura K. Sjoquist
Mental Illness And The Grace Of God, Laura K. Sjoquist
Bioethics in Faith and Practice
This paper will attempt to address God's grace towards those with mental illnesses. It also attempts to provide direction in response to historical church views towards this population. Through scripture, this paper seeks to emphasize the importance of seeing a person as more than what they physically appear capable of - seeing people through God's eyes.
The Inconvenient Truth About Thinking Chickens, Lori Marino
The Inconvenient Truth About Thinking Chickens, Lori Marino
Animal Sentience
Original Abstract: Domestic chickens are members of an order, Aves, which has been the focus of a revolution in our understanding of neuroanatomical, cognitive, and social complexity. Some birds are now known to be on a par with many mammals in their intelligence, emotional sophistication, and social interaction. Yet views of chickens have largely remained unrevised in light of this new evidence. In this paper, I examine the data on cognition, emotions, personality, and sociality in chickens, exploring such areas as self-awareness, cognitive bias, social learning and self-control, and comparing their abilities with other birds and other vertebrates, particularly …
Effects Of Language Immersion Versus Classroom Exposure On Advanced French Learners: An Erp Study, Alexandra Claire Brito
Effects Of Language Immersion Versus Classroom Exposure On Advanced French Learners: An Erp Study, Alexandra Claire Brito
Pursuit - The Journal of Undergraduate Research at The University of Tennessee
University students often report making significant advances in their second language (L2) ability after immersion in a nonnative language through study abroad. The degree to which late L2 learners can become nativelike in terms of L2 performance and brain processing is unclear in second language acquisition research. The link between L2 proficiency and learning context has been characterized in previous research, yet the role of learning experience in attaining nativelike brain processing of L2 remains to be elucidated. This study contrasts learners with advanced French proficiency who have attained this level with no, little, or more immersion experience through study …
Neuroscience, Materialism, And The Soul: Limit Questions, Jeremy M. Aymard
Neuroscience, Materialism, And The Soul: Limit Questions, Jeremy M. Aymard
Dialogue & Nexus
In light of recent discoveries in neuroscience linking the mind to physical processes, Christian philosophers have resorted to a more materialistic view of the human person, using neuroscience as support for their view that an immaterial soul does not exist. In this essay, I will point out a major flaw in the logic for defending a materialistic view, argue that either a bipartite or tripartite view of the human person is more aligned with Scripture, and hopefully point towards a more reliable means for attaining truth regarding human nature and the soul.
Polymorphisms Of The 5-Httlpr Gene: Associations To Ern And Depression, Curtis Killpack, Michael J. Larson
Polymorphisms Of The 5-Httlpr Gene: Associations To Ern And Depression, Curtis Killpack, Michael J. Larson
Journal of Undergraduate Research
Our aim with this study of polymorphisms in the serotonin transporter gene (5-HTTLPR) was to investigate the association between performance monitoring capabilities (i.e., detecting errors in performance using the error-related negativity [ERN] component of the scalp recorded event-related potential [ERP]) against three variations of gene 5-HTTLPR allelic pairs: homozygous short (S/S), heterozygous short-long (S/L), and homozygous long (L/L). The serotonin transporter gene is associated with our ability to cope with stress and regulate serotonin, which affects mood, social behavior, appetite, and sleep (Adam, Doane, Zinbarg, Mineka, Craske, & Griffith, 2010). Previous studies (Barnes, Dean, Nandam, O’Connell, & Bellgrove, 2011) have …
Role Of Exercise And Stress In Memory And Learning Of The Hippocampus, Paul Baker, Jeff Edwards
Role Of Exercise And Stress In Memory And Learning Of The Hippocampus, Paul Baker, Jeff Edwards
Journal of Undergraduate Research
Some of the most devastating diseases today are diseases of the mind. Common side effects of Alzheimer’s disease are dementia and memory loss and more than 44 million people suffer from the disease worldwide [1]. Other mental diseases such as Parkinson’s also have a dramatic impact on the memory and learning pathways. Understanding the mechanism involved with memory and learning will bring science that much closer to finding a permanent cure to these devastating diseases.
The Role Of Bdnf Expression In Chronic Ethanol Usage, Caleb Porter, Scott Steffensen
The Role Of Bdnf Expression In Chronic Ethanol Usage, Caleb Porter, Scott Steffensen
Journal of Undergraduate Research
It has been observed that chronic exposure to drugs of abuse, particularly opiates, increases brain-derived neurotrophic factor (BDNF) levels in ventral tegmental area (VTA) neurons. In particular, BDNF expression is dramatically increased during drug withdrawal, which would suggest a direct connection between the aversive state of withdrawal and BDNFinduced neuronal plasticity. The purpose of this project was to evaluate the relationship between brain-derived neurotrophic factor (BDNF) expression, which is dramatically increased within the ventral tegmental area (VTA) during drug abuse, and alcohol withdrawal symptoms.
Mollifying Neuroscience And Christian Faith: An Emergent Monistic Claim For Free Will And The Soul, Paul Figel
Mollifying Neuroscience And Christian Faith: An Emergent Monistic Claim For Free Will And The Soul, Paul Figel
Dialogue & Nexus
Modern neuroscience makes it difficult for one to support a case for substance dualism regarding the existence of a soul and free will. The neuroscientific evidence stems from several experiments in which test subjects were instructed to perform a simple voluntary movement. Scientists consistently observed neurological antecedents preceding the subject’s conscious decision to perform the action. An examination of these experiments and the conclusions drawn will show several key inconsistencies that weaken the extreme anti-conscious will claim. However, it is important to not reject the neurological evidence against substance dualism, but instead discover a new perspective (e.g. emergent monism) that …
Volume 3 Editorial, Daniel Brannan
Choice-Induced Preference: A Challenge For Contrast, Benjamin R. Eisenreich, Benjamin Y. Hayden
Choice-Induced Preference: A Challenge For Contrast, Benjamin R. Eisenreich, Benjamin Y. Hayden
Animal Sentience
In his target article, Zentall asks: “to experience cognitive dissonance is it necessary for one to have conflicting beliefs or even beliefs at all?” He then argues that a simple behavioral process, the Within Trial Contrast Effect, may be sufficient to explain observed cognitive dissonance effects in nonhuman animals and possibly humans as well. We agree with Zentall that this effect is sufficient to explain many reported cognitive dissonance effects in nonhuman animals, but question its sufficiency for primate behavior (both monkeys and humans).
Chicken Of The Sea, Jonathan Balcombe
Chicken Of The Sea, Jonathan Balcombe
Animal Sentience
Marino summarizes research showing that chickens perform cognitively and emotionally at a higher level than previously assumed. Here, I describe capacities of teleost fishes that parallel those of chickens, including the ability to recognize human faces, perspective-taking, and referential communication. Research on chickens and on fishes reveals an emerging trend in cognitive ethology: abilities once thought limited to a scant few highly intelligent non-humans may actually occur broadly across taxa.
Tribute To Jaak Panksepp, Jonathan Balcombe
Can Unconscious Brain Processes Indicate Sentience?, Vincent Taschereau-Dumouchel, Piercesare Grimaldi, Hakwan Lau
Can Unconscious Brain Processes Indicate Sentience?, Vincent Taschereau-Dumouchel, Piercesare Grimaldi, Hakwan Lau
Animal Sentience
We disagree with Woodruff that we have good neurobiological reasons to think fishes are sentient, because mechanisms for consciousness are controversial even in humans. To the extent that there are consensuses in that literature, they do not support Woodruff's claims.
The Multiple Facets Of Empathy, Magdalena Boch, Claus Lamm
The Multiple Facets Of Empathy, Magdalena Boch, Claus Lamm
Animal Sentience
We discuss the definition of empathy provided by Kujala (2017) and argue that research in this field, in assigning the cognitive component of empathy only a secondary role, misses crucial information. Further knowledge about dogs’ ability for higher cognitive processes helps (a) in interpreting results such as potential prosocial behavior in dogs and (b) sheds light on the question of whether abilities like perspective-taking and self-other distinction are uniquely human.
Individual Variation In Fear Behaviour, Rob Found
Individual Variation In Fear Behaviour, Rob Found
Animal Sentience
Individual variation in behaviour adds another layer of complexity to studies of animal responses to fear and risk, but when individual responses are consistent, and correlated with other behaviours, these patterns can provide a structure that furthers our understanding. I interpret Beauchamp’s review of vigilance and fear from the perspective of my own studies of elk personality. Wild elk responses to changing stimuli (benign or aversive) illustrate how personality is a key factor in explaining variation in vigilance and fear behavior. Personality even influences how wildlife can learn to assess risk and adjust their fear responses accordingly.
Establishing That Contrast Is Cognitive Dissonance, Travis R. Smith
Establishing That Contrast Is Cognitive Dissonance, Travis R. Smith
Animal Sentience
Zentall suggests that the same mechanism underlies cognitive dissonance in humans and the within-trial contrast effect in pigeons (and humans). The contrast effect has face validity in explaining cognitive dissonance, but more research is needed to establish construct validity. To determine whether both phenomena share the same mechanism, future research should test (1) whether both share physiological processes, (2) whether individuals who show sensitivity to one are also sensitive to the other, and (3) whether both phenomena are affected by the same changes in an independent variable.
Studying Dog Emotion Beyond Expression And Without Concern For Feeling, Peter F. Cook
Studying Dog Emotion Beyond Expression And Without Concern For Feeling, Peter F. Cook
Animal Sentience
Studies of dog emotion have focused on the expression of social emotion, either because this is taken to suggest human-like feeling states in dogs or because it has been the most accessible signal of dog emotional processing. I argue for an approach grounded in affective neuroscience, relying on direct measures of physiology across different contexts. This work may be particularly fertile in exploring social emotion in the dog, not because dogs necessarily share human emotional states, but because they are unique in having likely evolved to fit a human social niche.
Self, Death, And Suicide: Does An Animal Know Of These?, Carolyn A. Ristau
Self, Death, And Suicide: Does An Animal Know Of These?, Carolyn A. Ristau
Animal Sentience
Peña-Guzmán makes a strong case, using examples from the media and scientific literature, that many captive animals suffer severely. In examining the possibility of animal suicide, he dismisses the need for “reflective self-subjectivity” and “intent” in suicidal behavior. He claims that at least some animals understand “death,” citing examples of behavior he deems to be death “rituals.” But these can be more simply interpreted. The possibility of animal suicide remains more dubious than Peña-Guzmán suggests.
Animal Models, Agendas And Sentience, Thomas Creson
Animal Models, Agendas And Sentience, Thomas Creson
Animal Sentience
Woodruff’s target article on teleost consciousness is a well-organized logical argument for considering the fish as a sentient being. This becomes more important for animal ethical discussion as the fish becomes a more important and legitimate animal model for investigating animal states and traits associated with higher levels of behavior such as learning and memory.
The Emotional Brain Of Fish, Sonia Rey Planellas
The Emotional Brain Of Fish, Sonia Rey Planellas
Animal Sentience
Woodruff (2017) analyzes structural homologies and functional equivalences between the brains of mammals and fish to understand where sentience and social cognition might reside in teleosts. He compares neuroanatomical, neurophysiological and behavioural correlates. I discuss current advances in the study of fish cognitive abilities and emotions, and advocate an evolutionary approach to the underlying basis of sentience in teleosts.
We Still Need A Theory, Paula Droege
We Still Need A Theory, Paula Droege
Animal Sentience
Woodruff (2017) has compiled a convincing array of data to support his contention that teleost fish feel pain. However, in the absence of an explanatory theory about the nature and function of consciousness, a checklist of criteria is insufficient to allay skeptical concerns. I offer a theory that can explain why features like selective attention and behavioral flexibility indicate consciousness. Consciousness represents the present moment in order to allow dynamic changes in actions or goals in response to situational demands.
Positive Emotions And Quality Of Life In Dogs, Patrizia Piotti
Positive Emotions And Quality Of Life In Dogs, Patrizia Piotti
Animal Sentience
Positive affect is fundamental to ensuring good animal welfare. Discrete and dimensional theories of emotion have recently been used to explore the relation between cognition and affect and to develop cognitive measures of positive affect. Human quality-of-life assessment focuses on positive affect, which is difficult to measure objectively in dogs. Expanding on Kujala’s (2017) discussion of positive emotions and cognitive measures of affect, I suggest how these are relevant to assessing canine quality of life.
To Identify All The Relevant Factors Is To Explain Feeling, Arthur S. Reber
To Identify All The Relevant Factors Is To Explain Feeling, Arthur S. Reber
Animal Sentience
Several additional comments on Reber (2016a) have appeared. Like those addressed in Reber (2016b), they reflect points of agreement and disagreement on various elements of my Cellular Basis of Consciousness (CBC) model. Some, however, seem to have missed key points. I'm willing to take some responsibility for this. Perhaps I was not clear about some of the more radical points of the model. Hopefully the case-by-case review here will help.
Fish Are Flexible Learners Who Can Discriminate Human Faces, Ulrike E. Siebeck
Fish Are Flexible Learners Who Can Discriminate Human Faces, Ulrike E. Siebeck
Animal Sentience
In his book “What a fish knows” Jonathan Balcombe (2016a, b) has created a comprehensive profile of a group of animals still often thought to have a 3-second memory, no ability to feel pain, and a generally limited ability to learn. Chapter by chapter, Balcombe dismantles these and other such assumptions and makes a convincing case that fish have many abilities that are not that different from our own. Here, I focus on one example which supports the notion that fish are flexible learners and able to perform tasks which are generally thought to require the advanced processing power of …
Dissonance Reduction In Nonhuman Animals: Implications For Cognitive Dissonance Theory, Cindy Harmon-Jones, Nick Haslam, Brock Bastian
Dissonance Reduction In Nonhuman Animals: Implications For Cognitive Dissonance Theory, Cindy Harmon-Jones, Nick Haslam, Brock Bastian
Animal Sentience
We review the evidence for dissonance reduction in nonhuman animals and examine the alternative explanations for these effects. If nonhuman animals engage in dissonance reduction, this supports the original theory as proposed by Festinger (1957) over the revisions to the theory that focused on the self-concept. Evidence of animal sentience, including dissonance reduction, may be a source of cognitive dissonance.
What Can Research On Nonhumans Tell Us About Human Dissonance?, Jennifer Vonk
What Can Research On Nonhumans Tell Us About Human Dissonance?, Jennifer Vonk
Animal Sentience
Zentall’s thoughtful review of the literature on cognitive dissonance in nonhumans helps to highlight the common finding that similar outcomes in humans and nonhumans can be attributed to different underlying mechanisms. I advocate a more fully comparative approach to the underlying mechanisms, avoiding the assumption of shared processes in humans and nonhumans.
Clarifying Concepts In Cognitive Dissonance Theory, Eddie Harmon-Jones
Clarifying Concepts In Cognitive Dissonance Theory, Eddie Harmon-Jones
Animal Sentience
This commentary on Zentall’s target article focuses primarily on clarifying some postulates and variables in cognitive dissonance theory. I discuss the adaptive motivational functions of dissonance arousal and dissonance reduction, and attempt to clarify some past dissonance experiments and to tease apart a dissonance theory and contrast explanation of effort-justification-type effects. The evidence and arguments reviewed here support the explanatory power of cognitive dissonance theory in a wide variety of circumstances in human and nonhuman animals, but they depend on first defining concepts such as “cognitions” quite broadly, as Festinger did when he originally proposed the theory.
Cognitive Dissonance Or Contrast? It Could Be Both, Thomas Zentall
Cognitive Dissonance Or Contrast? It Could Be Both, Thomas Zentall
Animal Sentience
My target article suggested that cognitive dissonance may be accounted for by a simpler mechanism: contrast. Whether contrast can explain all cognitive dissonance effects is an empirical question, but it is always useful to try to distinguish simpler mechanisms from more complex cognitive ones. The insistence that cognitive dissonance is a human-only process quite different from contrast may be a self-serving means of justifying the exploitation of animals.