Comparative Psychology Commons^™

Whether Invertebrates Are Sentient Matters To Bioethics And Science Policy, Michael L. Woodruff

Animal Sentience

Mikhalevich & Powell provide convincing empirical evidence that at least some invertebrates are sentient and hence should be granted moral status. I agree and argue that functional markers should be the primary indicators of sentience. Neuroanatomical homologies provide only secondary evidence. Consensus regarding the validity of these functional markers will be difficult to achieve. To be effective in practice, functional markers of sentience will have to be tested and accepted species by species to overcome the implicit biases against extending moral status to invertebrates.

Construct Validity Of The Behavior Assessment System For Children-Third Edition Teacher Rating Scales (Basc-3 Trs): Comparisons With The Adjustment Scales For Children And Adolescents (Asca), Shannon Burback

Masters Theses

The Behavior Assessment Scale for Children-Third Edition Teacher Rating Scale Child Form (BASC-3 TRS-C) and the Adjustment Scales for Children and Adolescents (ASCA) are both teacher rating scales which may be used by school psychologist to assess youth behavior problems. The BASC, BASC-2, and BASC-3 have limited replicated research of the studies reported in their respective manuals. Therefore, it was important to empirically compare the BASC-3 TRS-C with the ASCA to examine construct validity (convergent, discriminant, and divergent) as there were, at present, no published studies replicating BASC-3 Manual research. The present study analyzed BASC-3 TRS-C and ACSA ratings which …

The Demography And Practice Of Australians Caring For Native Wildlife And The Psychological, Physical And Financial Effects Of Rescue, Rehabilitation And Release Of Wildlife On The Welfare Of Carers, Bruce Englefield, Steve Candy, Melissa J. Starling, Paul Mcgreevy

Human-Animal Bonds Collection

The rescue, rehabilitation and release of injured and orphaned Australian wildlife is managed by over 20,000 carers, mostly voluntarily. These volunteers experience mental, physical and financial challenges that have not been researched adequately. This study collated the responses (n = 316) to a survey conducted among Australian wildlife carers who actively foster orphaned joeys for hand-raising and injured adult mammals for rehabilitation and release. It confirmed 86% of rehabilitators are female, 70% are over the age of 46 years and their prime motivation is an affinity with animals. The average time spent in the sector is 11.5 years, and the …

Personality And Coping, Alyssa Seely

Intuition: The BYU Undergraduate Journal of Psychology

No abstract provided.

The Question Of Animal Awareness, Francoise Wemelsfelder

Françoise Wemelsfelder, PhD

The problem of animal awareness lies at the interface of science and philosophy. As a starting point for the study of phenomena such as awareness, mind, consciousness, etc., we hardly have any reference other than our own human experience and in the context of a nondualistic ontology this can be justified. In philosophy and psychology it appears to be very difficult to give direct operational definitions of terms such as consciousness, etc. So we might expect this to be even more difficult in the study of animals. A detailed knowledge of animals and their behaviour is necessary in order to …

Animal Boredom: Is A Scientific Study Of The Subjective Experiences Of Animals Possible?, Françoise Wemelsfelder

Françoise Wemelsfelder, PhD

The aim of this paper is to explore the relationship between different meta-scientific frameworks and the science of animal welfare. Animal Boredom 117 During the past few years, I have become more and more convinced that the great difficulty science has in studying subjective experience in its objects, might be related to the denial of any role to subjective experience in the observer as an interpretational guide. Can a quality in the world around us be observed, when this same quality is deliberately excluded from the process of observing?

As a practical example for the discussion described above, the phenomenon …

Impact Of Stress, Fear And Anxiety On The Nociceptive Responses Of Larval Zebrafish, Javier Lopez-Luna, Qussay Al-Jubouri, Lynne U. Sneddon

Lynne Sneddon, PhD

Both adult and larval zebrafish have been demonstrated to show behavioural responses to noxious stimulation but also to potentially stress- and fear or anxiety- eliciting situations. The pain or nociceptive response can be altered and modulated by these situations in adult fish through a mechanism called stress-induced analgesia. However, this phenomenon has not been described in larval fish yet. Therefore, this study explores the behavioural changes in larval zebrafish after noxious stimulation and exposure to challenges that can trigger a stress, fear or anxiety reaction. Five-day post fertilization zebrafish were exposed to either a stressor (air emersion), a predatory fear …

Hpi Reactivity Does Not Reflect Changes In Personality Among Trout Introduced To Bold Or Shy Social Groups, Jack S. Thomson, Phillip C. Watts, Tom G. Pottinger, Lynne U. Sneddon

Lynne Sneddon, PhD

Physiological stress responses often correlate with personalities (e.g., boldness). However, this relationship can become decoupled, although the mechanisms underlying changes in this relationship are poorly understood. Here we quantify (1) how an individual’s boldness (response to novel objects) in rainbow trout, Oncorhynchus mykiss, changes in response to interactions with a population of either bold or shy conspecifics and we (2) measured associated post-stress cortisol levels. Initially-bold trout became shyer regardless of group composition, whereas shy trout remained shy demonstrating that bold individuals are more plastic. Stress-induced plasma cortisol reflected the original personality of fish but not the personality induced …

Do Painful Sensations And Fear Exist In Fish?, Lynne U. Sneddon

Lynne Sneddon, PhD

The detection of pain and fear in fi sh has been subject to much debate and, since fi sh are a popular experimental model and commercially important in both angling and aquaculture, many procedures that fi sh are subjected to cause injury, fear and stress. These injuries would give rise to the sensation of pain in humans but whether fi sh have the capacity for pain is relatively under explored. Recent evidence has shown that fi sh have the same neural apparatus to detect pain that mammals and humans do, that their brain is active during a potentially painful experience, …

The Intersection Of Aging And Pet Guardianship: Influences Of Health And Social Support, Ranell L. Mueller, Elizabeth G. Hunter

People and Animals: The International Journal of Research and Practice

Studies of the human-animal bond show many positive health effects for pet guardians including a sense of companionship, reduced depression and loneliness, and higher activity levels, yet few studies have examined factors such as how the pet guardians’ health, age, and social networks influence their relationship with and ability to care for their pet. These health factors may affect the ability of older adults to care for their pets, therefore inhibiting them from reaping positive benefits associated with pet guardianship. This qualitative study involved 21 in-depth interviews with older adults, aged 60+, who were pet guardians. Four themes emerged from …

Social Assemblages And Mating Relationships In Prairie Dogs: A Dna Fingerprint Analysis, Steven E. Travis, Con Slobodchikoff, Paul Kefan

Con Slobodchikoff, PhD

Mating system characterizations have been hindered by difficulties in accurately assigning parentage to offspring. We investigated the relationship between social assemblages and mating relationships in a territorial harem polygynous mammal, the Gunnison's prairie dog, using a combination of behavioral and molecular analyses. We demonstrate multiple paternity and an extraordinarily high incidence of extraterritorial fertilizations (i.e., 61% of all progeny), in combination with the existence of female kin groups. On this basis, we conclude that social assemblages alone provide a poor description of the Gunnison's prairie dog mating system, and suggest several potential reasons for the maintenance of territoriality in this …

Geographic Variation In Alarm Calls Of Gunnison's Prairie Dogs, C. N. Slobodchikoff, S. H. Ackers, M. Van Ert

Con Slobodchikoff, PhD

Geographic variation in alarm calls of Gunnison's prairie dogs (Cynomys gunnisoni) was analyzed at regional and local scales. Alarm calls in response to a common stimulus (the same human) were recorded at four colonies near Flagstaff, Arizona, and at six sites throughout the southwestern United States. The acoustic structure of calls was analyzed for seven call variables. Regional differences fit the prediction of greater differences with increased geographical separation. Differences between colonies at a local scale were not related to geographical distance, suggesting that local dialects exist within a region. Differences in the level of predation by humans …

Resources And The Evolution Of Social Behavior, Con Slobodchikoff

Con Slobodchikoff, PhD

No abstract provided.

Who I Am Is Shaped By My Past And Impacts My Future: Exploring Antecedents And Outcomes Of Self-Views Across International, Immigrant, And Canadian Born Undergraduate Students, Anjana Balakrishnan

Electronic Thesis and Dissertation Repository

This dissertation focused on how various self-views variables (self-esteem, self-concept, and self-concept clarity) differ across and within groups of university students, are influenced by internal and external factors, and predict academic and non-academic variables. Key models of self and group perceptions were used in deriving hypotheses (i.e., Shavelson, Hubner & Stanton, 1976; Bosson & Swann Jr, 2009; Stephan, Ybarra, & Morrison, 2009). Across the four studies, self-report questionnaires were used. Studies 1 and 4 were completed online by international, immigrant, and Canadian born students. Studies 2 and 3 examined only international students, involved an experimental manipulation, and were conducted in-lab. …

Thinking Chickens: A Review Of Cognition, Emotion, And Behavior In The Domestic Chicken, Lori Marino

Lori Marino, PhD

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. At least some birds are now known to be on par with many mammals in terms of their level of intelligence, emotional sophistication, and social interaction. Yet, views of chickens have largely remained unrevised by this new evidence. In this paper, I examine the peer-reviewed scientific data on the leading edge of cognition, emotions, personality, and sociality in chickens, exploring such areas as self-awareness, cognitive bias, social learning and self-control, and comparing their abilities in …

The Question Of Animal Selves: Implications For Sociological Knowledge And Practice, Leslie Irvine

Leslie Irvine, PhD

The question of whether sociologists should investigate the subjective experience of non-human others arises regularly in discussions of research on animals. Recent criticism of this research agenda as speculative and therefore unproductive is examined and found wanting. Ample evidence indicates that animals have the capacity to see themselves as objects, which meets sociological criteria for selfhood. Resistance to this possibility highlights the discipline’s entrenched anthropocentrism rather than lack of evidence. Sociological study of the moral status of animals, based on the presence of the self, is warranted because our treatment of animals is connected with numerous “mainstream” sociological issues. As …

Some Non-Human Languages Of Thought, Nicolas J. Porot

Dissertations, Theses, and Capstone Projects

What might we learn if we take seriously the possibility of non-human Languages of Thought (LoT)? A LoT is a combinatorial set of mental representations. And, since mental representations and rules of combination vary in kind, there are many possible LoTs. Simple LoTs might lack familiar features of the putative human LoT, such as object representations, recursively defined rules of combination, sentential connectives, or predicate-argument structure. The most familiar arguments for the existence of LoTs, such as those from productivity, systematicity, concept learning, and perceptual computation, all fail when applied to non-human animals. But recent empirical evidence motivates attributing LoTs …

Behaviour Development: A Cephalopod Perspective, Jennifer A. Mather

Jennifer Mather, PhD

This paper evaluates the development of behaviour from the viewpoint of the intelligent and learningdependent cephalopod mollusks as a contrast to that of mammals. They have a short lifespan, commonly one to two years, and most are semelparous, reproducing only near the end of their lifespan. In the first two months of life, Sepia officinalis cuttlefish show drastic limitation on learning of prey choice and capture, gradually acquiring first short-term and then long-term learning over 60 days. This is paralleled by development of the vertical lobe of the brain which processes visually learned information. In the long nonreproductive adulthood, Octopus …

Laterality Strength Is Linked To Stress Reactivity In Port Jackson Sharks (Heterodontus Portusjacksoni), Evan E. Byrnes, Catarina Vila Pouca, Culum Brown

Culum Brown, PhD

Cerebral lateralization is an evolutionarily deep-rooted trait, ubiquitous among the vertebrates and present even in some invertebrates. Despite the advantages of cerebral lateralization in enhancing cognition and facilitating greater social cohesion, large within population laterality variation exists in many animal species. It is proposed that this variation is maintained due links with inter-individual personality trait differences. Here we explored for lateralization in Port Jackson sharks (Heterodontus portusjacksoni) using T-maze turn and rotational swimming tasks. Additionally, we explored for a link between personality traits, boldness and stress reactivity, and cerebral lateralization. Sharks demonstrated large individual and sex biased laterality …

Stress Profile Influences Learning Approach In A Marine Fish, Vincent Raoult, Larissa Trompf, Jane E. Williamson, Culum Brown

Culum Brown, PhD

The spatial learning skills of high and low stress juvenile mulloway (Argyrosomus japonicus) were tested in a dichotomous choice apparatus. Groups of fish were formed based on background blood cortisol levels and required to learn the location of a food reward hidden in one of two compartments. Low stress fish characterised by low background levels of the stress hormone cortisol had higher activity levels and entered both rewarded and unrewarded rooms frequently. Within the first week of exposure, however, their preference for the rewarded room increased, indicative of learning. Fish that had high background levels of cortisol, in …