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Full-Text Articles in Psychology

Does The Presence Of A Learning Disability Elicit A Stigmatization?, Kelsey Lisle, T. Joel Wade Nov 2013

Does The Presence Of A Learning Disability Elicit A Stigmatization?, Kelsey Lisle, T. Joel Wade

Faculty Journal Articles

Aims: To determine whether or not a Learning Disability(LD) label leads to stigmatization. Study Design: This research used a 2(sex of participant) x 2(LD label)x 2 (Sex of stimulus person) factorial design. Place and Duration of Study: Bucknell University, between October 2010 and April 2011. Methodology: Sample: We included 200 participants (137 women and 63 men, ranging in age from 18 – 75 years, M = 26.41. Participants rated the stimulus individual on 27 personality traits, 8 Life success measures, and the Big-5 personality dimensions. Also, participants completed a Social Desirability measure. Results: A MANOVA revealed a …


Sensory-Specific Appetition: Postingestive Detection Of Glucose Rapidly Promotes Continued Consumption Of A Recently Encountered Flavor, Kevin P. Myers, Marisa S. Taddeo, Emily K. Richards Sep 2013

Sensory-Specific Appetition: Postingestive Detection Of Glucose Rapidly Promotes Continued Consumption Of A Recently Encountered Flavor, Kevin P. Myers, Marisa S. Taddeo, Emily K. Richards

Faculty Journal Articles

It is generally thought that macronutrients stimulate intake when sensed in the mouth (e.g., sweet taste) but as food enters the GI tract its effects become inhibitory, triggering satiation processes leading to meal termination. Here we report experiments extending recent work (see [1]) showing that under some circumstances nutrients sensed in the gut produce a positive feedback effect, immediately promoting continued intake. In one experiment, rats with intragastric (IG) catheters were accustomed to consuming novel flavors in saccharin daily while receiving water infused IG (5 ml/15 min). The very first time glucose (16% w/w) was infused IG instead of water, …


Witnessing Reconciliation Reduces Arousal Of Bystanders In A Baboon Group (Papio Hamadryas Hamadryas), Peter G. Judge, Katherine A. Bachmann May 2013

Witnessing Reconciliation Reduces Arousal Of Bystanders In A Baboon Group (Papio Hamadryas Hamadryas), Peter G. Judge, Katherine A. Bachmann

Faculty Journal Articles

Reconciliation is the occurrence of friendly behaviour between opponents shortly after an aggressive conflict. In primate groups, reconciliation reduces aggression and post-conflict arousal. Aggression within a group can also increase arousal of bystanders (e.g. increase bystanders’ rates of self-directed behaviour). Since reconciliation reduces aggression between opponents, we tested whether it also reduces self-directed behaviour in bystanders. Following aggression in a captive group of hamadryas baboons, one observer conducted a focal sample on one of the combatants to document reconciliation and a second observer simultaneously conducted a focal sample on a randomly selected bystander. Matched control observations were then collected on …


Rats Acquire Stronger Preference For Flavors Consumed Towards The End Of A High-Fat Meal, Kevin P. Myers Feb 2013

Rats Acquire Stronger Preference For Flavors Consumed Towards The End Of A High-Fat Meal, Kevin P. Myers

Faculty Journal Articles

Rats learn to prefer flavors associated with postingestive effects of nutrients. The physiological signals underlying this postingestive reward are unknown. We have previously shown that rats readily learn to prefer a flavor that was consumed early in a multi-flavored meal when glucose is infused intragastrically (IG), suggesting rapid postingestive reward onset. The present experiments investigate the timing of postingestive fat reward, by providing distinctive flavors in the first and second halves of meals accompanied by IG fat infusion. Learning stronger preference for the earlier or later flavor would indicate when the rewarding postingestive effects are sensed. Rats consumed sweetened, calorically-dilute …


Stability Of Art Preference In Frontotemporal Dementia, Andrea R. Halpern, Margaret G. O'Connor Feb 2013

Stability Of Art Preference In Frontotemporal Dementia, Andrea R. Halpern, Margaret G. O'Connor

Faculty Journal Articles

We examined aesthetic preference for reproductions of paintings among frontotemporal dementia (FTD) patients, in two sessions separated by 2 weeks. The artworks were in three different styles: representational, quasirepresentational, and abstract. Stability of preference for the paintings was equivalent to that shown by a matched group of Alzheimer's disease patients and a group of healthy controls drawn from an earlier study. We expected that preference for representational art would be affected by disruptions in language processes in the FTD group. However, this was not the case and the FTD patients, despite severe language processing deficits, performed similarly across all three …


The Big-5 And The Perceived Effectiveness Of Love Acts, T. Joel Wade, Jamie Vanartsdalen Jan 2013

The Big-5 And The Perceived Effectiveness Of Love Acts, T. Joel Wade, Jamie Vanartsdalen

Faculty Journal Articles

The present research was implemented in order to determine whether or not the Big-5 personality dimensions relate to the perceived effectiveness of love acts discovered in prior research. An internet based questionnaire was utilized and college undergraduates and as well as non-college students were included in the sample. The Big-5 dimensions of Agreeableness, Openness to Experience, and Emotional Stability were expected to be related to the perceived effectiveness of the Love acts. Additionally, men and women were expected to rate Love acts signaling commitment and exclusivity as most effective. The results obtained were consistent with the hypotheses and are discussed …


Letter Of Purpose Of The Feminist Evolutionary Psychology Society, T. Joel Wade Jan 2013

Letter Of Purpose Of The Feminist Evolutionary Psychology Society, T. Joel Wade

Faculty Journal Articles

It has been almost five years since the formation of the Feminist Evolutionary Psychology Society (FEPS), which was created with the hopes of drawing attention to issues that influence women’s role in evolution. In those years, FEPS has changed into a more structured society with clear aims. In this letter, we review the rationale for creating FEPS, as well as how we structured FEPS to be an effective organization. The majority of the letter pertains to four distinct goals of FEPS that we will continue to address in the future. These goals are to investigate the active role of women …


Rats Acquire Stronger Preference For Flavors Consumed Towards The End Of A High-Fat Meal, Kevin P. Myers Jan 2013

Rats Acquire Stronger Preference For Flavors Consumed Towards The End Of A High-Fat Meal, Kevin P. Myers

Faculty Journal Articles

Rats learn to prefer flavors associated with postingestive effects of nutrients. The physiological signals underlying this postingestive reward are unknown. We have previously shown that rats readily learn to prefer a flavor that was consumed early in a multi-flavored meal when glucose is infused intragastrically (IG), suggesting rapid postingestive reward onset. The present experiments investigate the timing of postingestive fat reward, by providing distinctive flavors in the first and second halves of meals accompanied by IG fat infusion. Learning stronger preference for the earlier or later flavor would indicate when the rewarding postingestive effects are sensed. Rats consumed sweetened, calorically-dilute …


The Interface Between Morphology And Action Planning: A Comparison Of Two Species Of New World Monkeys, Stacey L. Zander, Dan J. Weiss, Peter G. Judge Jan 2013

The Interface Between Morphology And Action Planning: A Comparison Of Two Species Of New World Monkeys, Stacey L. Zander, Dan J. Weiss, Peter G. Judge

Faculty Journal Articles

Recent research with several species of nonhuman primates suggests sophisticated motor-planning abilities observed in human adults may be ubiquitous among primates. However, there is considerable variability in the extent to which these abilities are expressed across primate species. In the present experiment, we explore whether the variability in the expression of anticipatory motor-planning abilities may be attributed to cognitive differences (such as tool use abilities) or whether they may be due to the consequences of morphological differences (such as being able to deploy a precision grasp). We compared two species of New World monkeys that differ in their tool use …


Capuchin Monkeys Exercise Self-Control By Choosing Token Exchange Over An Immediate Reward, Peter G. Judge, Jennifer L. Essler Jan 2013

Capuchin Monkeys Exercise Self-Control By Choosing Token Exchange Over An Immediate Reward, Peter G. Judge, Jennifer L. Essler

Faculty Journal Articles

Self-control is a prerequisite for complex cognitive processes such as cooperation and planning. As such, comparative studies of self-control may help elucidate the evolutionary origin of these capacities. A variety of methods have been developed to test for self-control in non-human primates that include some variation of foregoing an immediate reward in order to gain a more favorable reward. We used a token exchange paradigm to test for self-control in capuchin monkeys (Cebus apella). Animals were trained that particular tokens could be exchanged for food items worth different values. To test for self-control, a monkey was provided with …


Friendship As A Relationship Infiltration Tactic During Human Mate Poaching., Justin Mogilski, T. Joel Wade Jan 2013

Friendship As A Relationship Infiltration Tactic During Human Mate Poaching., Justin Mogilski, T. Joel Wade

Faculty Journal Articles

Previous research has characterized human mate poaching as a prevalent alternative mating strategy that entails risks and costs typically not present during general romantic courtship and attraction. This study is the first to experimentally investigate friendship between a poacher and his/her target as a risk mitigation tactic. Participants (N = 382) read a vignette that differed by whether the poacher was male/female and whether the poacher and poached were friends/acquaintances. Participants assessed the likelihood of the poacher being successful and incurring costs. They also rated the poacher and poached on several personality and mate characteristics. Results revealed that friendship increased …


Auditory Imagery And The Poor-Pitch Singer, Peter Q. Pfordresher, Andrea R. Halpern Jan 2013

Auditory Imagery And The Poor-Pitch Singer, Peter Q. Pfordresher, Andrea R. Halpern

Faculty Journal Articles

The vocal imitation of pitch by singing requires one to plan laryngeal movements on the basis of anticipated target pitch events. This process may rely on auditory imagery, which has been shown to activate motor planning areas. As such, we hypothesized that poor-pitch singing, although not typically associated with deficient pitch perception, may be associated with deficient auditory imagery. Participants vocally imitated simple pitch sequences by singing, discriminated pitch pairs on the basis of pitch height, and completed an auditory imagery self-report questionnaire (the Bucknell Auditory Imagery Scale). The percentage of trials participants sung in tune correlated significantly with self-reports …


Parent-Child Dynamics And Emerging Adult Religiosity: Attachment, Parental Beliefs, And Faith Support, Kathleen C. Leonard, Kaye V. Cook, Chris Boyatzis, Cynthia N. Kimball, Kelly S. Flanagan Jan 2013

Parent-Child Dynamics And Emerging Adult Religiosity: Attachment, Parental Beliefs, And Faith Support, Kathleen C. Leonard, Kaye V. Cook, Chris Boyatzis, Cynthia N. Kimball, Kelly S. Flanagan

Faculty Journal Articles

Parental religiosity has been shown to predict child and adolescent religiosity, but the role of parents in emerging adult religiosity is largely unknown. We explored associations among emerging adult religiosity, perceived parental religiosity, perceived similarity to mother's and father's religious beliefs, parental faith support, and parental attachment. Participants were 481 alumni of two Christian colleges and completed surveys online. Emerging adult religiosity (measured by Christian orthodoxy and intrinsic religiosity) was high and similar to parents' religiosity. Perceived similarity to parents' religious beliefs, faith support, and attachment to fathers predicted emerging adult religiosity. However, parental religiosity alone was a weak predictor …


The Big-5 And The Perceived Effectiveness Of Love Acts, T. Joel Wade Jan 2013

The Big-5 And The Perceived Effectiveness Of Love Acts, T. Joel Wade

Faculty Journal Articles

!e present research was implemented in order to determine whether or not the Big-5 personality dimensions relate to the perceived effectiveness of love acts discovered in prior research. An internet based questionnaire was utilized and college undergraduates and as well as non-college students were included in the sample. !e Big-5 dimensions of Agreeableness, Openness to Experience, and Emotional Stability were expected to be related to the perceived effectiveness of the Love acts. Additionally, men and women were expected to rate Love acts signaling commitment and exclusivity as most effective. !e results obtained were consistent with the hypotheses and are discussed …


Friendship As A Relationship Infiltration Tactic During Human Mate Poaching, T. Joel Wade Jan 2013

Friendship As A Relationship Infiltration Tactic During Human Mate Poaching, T. Joel Wade

Faculty Journal Articles

Previous research has characterized human mate poaching as a prevalent alternative mating strategy that entails risks and costs typically not present during general romantic courtship and attraction. This study is the first to experimentally investigate friendship between a poacher and his/her target as a risk mitigation tactic. Participants (N = 382) read a vignette that differed by whether the poacher was male/female and whether the poacher and poached were friends/acquaintances. Participants assessed the likelihood of the poacher being successful and incurring costs. They also rated the poacher and poached on several personality and mate characteristics. Results revealed that friendship increased …