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2007

Psychology Faculty Publications

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Full-Text Articles in Psychology

Exercise Makes You Feel Good, But Does Feeling Good Make You Exercise?: An Examination Of Obese Dieters, Robert A. Carels, Carissa Coit, Kathleen Young, Bonnie Berger Dec 2007

Exercise Makes You Feel Good, But Does Feeling Good Make You Exercise?: An Examination Of Obese Dieters, Robert A. Carels, Carissa Coit, Kathleen Young, Bonnie Berger

Psychology Faculty Publications

Whereas exercise-induced mood enhancement has been well documented, the relationship between mood and exercise participation is less well understood. Mood states influence evaluative judgments that could plausibly influence a decision to exercise. Further, most exercise-mood research is limited to normal weight adults in response to a single exercise session. The current investigation examines the influence of (a) morning mood on exercise, (b) exercise intensity/duration on mood enhancement, and (c) daily change in mood on exercise days compared with nonexercise days in obese behavioral weight loss program (BWLP) participants. Participants (N=36) recorded morning, evening, and pre- and postexercise mood, as well …


Is It A European Car Or A Japanese Car? An Erp Study Of Diagnostic Information Use In Visual Expertise, Assaf Harel, Shlomo Bentin Nov 2007

Is It A European Car Or A Japanese Car? An Erp Study Of Diagnostic Information Use In Visual Expertise, Assaf Harel, Shlomo Bentin

Psychology Faculty Publications

No abstract provided.


Coherence And Consistency Of Investors’ Probability Judgments, David V. Budescu, Ning Du Nov 2007

Coherence And Consistency Of Investors’ Probability Judgments, David V. Budescu, Ning Du

Psychology Faculty Publications

This study investigates the quality of direct probability judgments and quantile estimates with a focus on calibration and consistency. The two response modes use different measures of miscalibration, so it is difficult to directly compare their relative (in)accuracy. We employed a more refined within-subject design in which decision makers (DMs) used both response modes to make judgments about a random sample of stocks accompanied by identical information to facilitate comparison between the two judgment methods. DMs judged the probabilities that the stocks will reach a certain threshold, provided lower and upper bounds of these forecasts, and estimated median, 50%, 70%, …


In Search Of A Cause, Charles D. Dolph Oct 2007

In Search Of A Cause, Charles D. Dolph

Psychology Faculty Publications

No abstract provided.


Novice Vs. Experienced Coaches: Differences In Assigning Player Role Responsibilities, Elizabeth L. Shoenfelt Oct 2007

Novice Vs. Experienced Coaches: Differences In Assigning Player Role Responsibilities, Elizabeth L. Shoenfelt

Psychology Faculty Publications

A structured communication process developed for increasing role clarity for members of NCAA Division I basketball and volleyball teams was implemented for eight teams. The intervention included the completion of an instrument by both the head coach and each player, which enabled a quantified assessment of role agreement on a comprehensive list of required individual roles. The coach then met with each player individually to discuss the player’s roles on the team and where coach and player perceptions differed. As a result of the roles process and across coach experience level, role agreement between coach and players improved similarly from …


Multicultural And Colorblind Ideology, Stereotypes, And Ethnocentrism Among Black And White Americans, Carey S. Ryan, Jennifer S, Hunt, Joshua A. Weible, Charles R. Peterson, Juan F. Casas Oct 2007

Multicultural And Colorblind Ideology, Stereotypes, And Ethnocentrism Among Black And White Americans, Carey S. Ryan, Jennifer S, Hunt, Joshua A. Weible, Charles R. Peterson, Juan F. Casas

Psychology Faculty Publications

We examined Blacks’ and Whites’ perceptions of group variability and positivity as well as their beliefs about the extent to which multiculturalism and colorblindness would improve intergroup relations. In two studies, responses to questionnaires indicated that the tendency to endorse multiculturalism more than colorblindness was greater among Blacks than Whites; Blacks consistently endorsed multiculturalism more than colorblindness and Whites endorsed colorblindness more than did Blacks. Both studies also revealed evidence of out-group homogeneity and ethnocentrism. Stronger endorsement of multiculturalism relative to colorblindness predicted stronger stereotypes among Blacks, whereas stronger endorsement of colorblindness relative to multiculturalism predicted stronger stereotypes among Whites. …


Challenges Facing A Complementary-Systems Approach To Abstract And Episodic Speech Perception, Conor T. Mclennan Aug 2007

Challenges Facing A Complementary-Systems Approach To Abstract And Episodic Speech Perception, Conor T. Mclennan

Psychology Faculty Publications

It has been nearly a decade since the publication of
Goldinger’s [4] Psych. Review paper in which he
presented his episodic theory of lexical access.
Moreover, Goldinger’s (and others’) empirical
work [3, 14] providing evidence for episodic
representations predates the formal presentation of
his episodic theory. This is an appropriate time to
note how the field has progressed in the past decade
with respect to the debate over the nature of lexical
representations. As evidenced by the two main
papers, the emphasis is no longer on whether there
are abstract and/or episodic representations. Instead,
the focus is now on the …


Female Sexual-Offenders: Personality Pathology As A Mediator Of The Relationship Between Childhood Sexual Abuse History And Sexual Abuse Perpetration Against Others, Kelly Ann Christopher, Catherine J. Lutz-Zois, Amanda R. Reinhardt Jul 2007

Female Sexual-Offenders: Personality Pathology As A Mediator Of The Relationship Between Childhood Sexual Abuse History And Sexual Abuse Perpetration Against Others, Kelly Ann Christopher, Catherine J. Lutz-Zois, Amanda R. Reinhardt

Psychology Faculty Publications

Objective: The goal was to examine, in an all-female sample, possible mechanisms for the relationship between a history of childhood sexual abuse and the likelihood of perpetrating sexual abuse as an adult. It was hypothesized that Borderline and Antisocial Personality Disorder tendencies would mediate the relationship between these two forms of abuse.

Method: One hundred forty two female participants (61 sex-offenders and 81 non-sex offenders) were recruited from a women’s prison in the Midwest. The participants completed measures that included a childhood history of sexual abuse, socially desirable responding, primary and secondary psychopathy, and Borderline Personality Disorder tendencies.

Results: Participants …


The Political Personalities Of 2008 Republican Presidential Contenders John Mccain And Rudy Giuliani, Aubrey Immelman Jul 2007

The Political Personalities Of 2008 Republican Presidential Contenders John Mccain And Rudy Giuliani, Aubrey Immelman

Psychology Faculty Publications

This paper presents the results of indirect assessments of the personalities of Arizona senator John McCain and former New York mayor Rudy Giuliani, contenders for the Republican Party nomination in the 2008 U.S. presidential election, from the conceptual perspective of personologist Theodore Millon.

Information concerning Sen. McCain and Mayor Giuliani was collected from biographical sources and published reports and synthesized into personality profiles using the second edition of the Millon Inventory of Diagnostic Criteria (MIDC), which yields 34 normal and maladaptive personality classifications congruent with Axis II of DSM–IV.

The personality profile yielded by the MIDC was analyzed on …


Germ-Line Chimerism And Paternal Care In Marmosets (Callithrix Kuhlii), C. N. Ross, Jeffrey French, G. Ortí Apr 2007

Germ-Line Chimerism And Paternal Care In Marmosets (Callithrix Kuhlii), C. N. Ross, Jeffrey French, G. Ortí

Psychology Faculty Publications

The formation of viable genetic chimeras in mammals through the transfer of cells between siblings in utero is rare. Using microsatellite DNA markers, we show here that chimerism in marmoset (Callithrix kuhlii) twins is not limited to blood-derived hematopoietic tissues as was previously described. All somatic tissue types sampled were found to be chimeric. Notably, chimerism was demonstrated to be present in germ-line tissues, an event never before documented as naturally occurring in a primate. In fact, we found that chimeric marmosets often transmit sibling alleles acquired in utero to their own offspring. Thus, an individual that contributes gametes to …


A Comparison Of Weight-Control Behaviors In African American And Caucasian Women, Rachel A. Annunziato, Janet N. Lee, Michael R. Lowe Apr 2007

A Comparison Of Weight-Control Behaviors In African American And Caucasian Women, Rachel A. Annunziato, Janet N. Lee, Michael R. Lowe

Psychology Faculty Publications

Objectives: The purpose of the present study was to examine whether there are overall differences in help-seeking, in specific weight control behaviors used, and in predictors of seeking professional help for weight loss between African American and Caucasian women.
Design: Cross-sectional study
Setting: Participants were recruited from community sources in Philadelphia.
Participants: One hundred twenty female participants were studied. Of these, 58% were African American.
Main Outcome Measures: Participants completed a packet of measures assessing weight control behaviors, body mass index, co-morbid medical conditions, socioeconomic status, disordered eating behavior, and body image.
Results: Caucasian women were significantly more likely to …


Making Exit Interviews Useful To A Correctional Agency, Marian Layman, Laura Farris, Roni Reiter-Palmon, Erin Gallagher, Shawna Williams Apr 2007

Making Exit Interviews Useful To A Correctional Agency, Marian Layman, Laura Farris, Roni Reiter-Palmon, Erin Gallagher, Shawna Williams

Psychology Faculty Publications

Exit interviews serve as a tool to uncover departmental characteristics and areas in which departmental change should occur,1 and they are effective in gathering information from departing employees regarding impressions and experiences in their department.2 Ultimately, the goal of using exit interview questionnaires is to obtain objective information, increase efficiency of the interview process and evaluate aspects of the department through data analysis.3

The Nebraska Department of Correctional Services (DCS) contracted with the Center for Applied Psychological Services (CAPS) at the University of Nebraska at Omaha to evaluate the reasons for personnel voluntarily leaving their jobs. This …


The Best Laid Plans, Luke M. Tse Jan 2007

The Best Laid Plans, Luke M. Tse

Psychology Faculty Publications

No abstract provided.


Breaking Down The Barriers To Pediatric Procedural Preparation, Lindsey L. Cohen, Jill E. Maclaren Jan 2007

Breaking Down The Barriers To Pediatric Procedural Preparation, Lindsey L. Cohen, Jill E. Maclaren

Psychology Faculty Publications

There are characteristics of children’s medical pain that makes it amenable to intervention. Specifically, almost all procedural events are planned and the steps of the procedure are scripted. Thus, the parent and patient have the ability to be well prepared to handle the stressor. In fact, the medical situation could even be viewed as a valuable opportunity for the family to learn and practice coping skills, which in turn can result in a heightened sense of mastery and empowerment for future expected and unexpected pain and suffering in life. The preparation literature is sufficiently strong to allow recommendations regarding how …


Psychosocial Predictors Of Sexual Initiation And High-Risk Sexual Behaviors In Early Adolescence, Argyro Caminis, Christopher Henrich, Vladislav Ruchkin, Mary Schwab-Stone, Andrés Martin Jan 2007

Psychosocial Predictors Of Sexual Initiation And High-Risk Sexual Behaviors In Early Adolescence, Argyro Caminis, Christopher Henrich, Vladislav Ruchkin, Mary Schwab-Stone, Andrés Martin

Psychology Faculty Publications

Background: This longitudinal study examined psychosocial factors associated with risky sexual behavior in early adolescence.

Methods: Data were collected through a self-report survey, the Social and Health Assessment (SAHA), which was administered in three waves between 2001 and 2003 to a cohort of incoming sixth grade students in the public school system (149 classes at 17 middle and high schools, N = 1,175) of a small northeastern city in the United States. We first examined whether internalizing and externalizing problems in sixth grade, and the rate of change in these factors during middle school, were predictive of sexual initiation two …


Family Functioning In Children With Chronic Illness Compared With Healthy Controls: A Critical Review, Catherine B. Mcclellan, Lindsey L. Cohen Jan 2007

Family Functioning In Children With Chronic Illness Compared With Healthy Controls: A Critical Review, Catherine B. Mcclellan, Lindsey L. Cohen

Psychology Faculty Publications

The impact of chronic illnesses upon children and their families can range from minimal disruptions to severe distress and functional limitations. Advances in medical care and technology have increased the lifespan of children with chronic illness as well as decreased the frequency of readily observable disease impacts on this population. To enhance our understanding of the more subtle, but equally important, impacts of pediatric chronic illnesses, researchers have expanded the domains assessed to include measurement of child adjustment and family functioning. Understanding the nature and development of the deficits in family functioning is key to the formulation of interventions designed …


The Impact Of Acceptance And Commitment Therapy Versus Education On Stigma Toward People With Psychological Disorders, Akihiko Masuda, S. C. Hayes, Lindsay B. Fletcher, P. J. Seignourel, K. Bunting, S. A. Herbst, M. P. Twohig, J. Lillis Jan 2007

The Impact Of Acceptance And Commitment Therapy Versus Education On Stigma Toward People With Psychological Disorders, Akihiko Masuda, S. C. Hayes, Lindsay B. Fletcher, P. J. Seignourel, K. Bunting, S. A. Herbst, M. P. Twohig, J. Lillis

Psychology Faculty Publications

Acceptance and Commitment Therapy (ACT) has previously been shown to alter stigmatizing attitudes and to be relatively useful for psychologically inflexible participants. The present study is the first to bring those two findings together by comparing ACT to an education intervention for reducing stigma toward people with psychological disorders, and examining whether results differ for psychologically inflexible versus flexible individuals. A sample of college students (N = 95) was randomly assigned to a 2 ½ hour ACT or educational workshop. Measures were taken before and after the workshop and at a one-month follow-up. ACT reduced mental health stigma significantly regardless …


Fmri Predictors Of Treatment Outcome In Pediatric Anxiety Disorders, Erin Mcclure, Abby Adler, Christopher Monk, Jennifer Cameron, Samantha Smith, Eric E. Nelson, Ellen Leibenluft, Monique Ernst, Daniel Pine Jan 2007

Fmri Predictors Of Treatment Outcome In Pediatric Anxiety Disorders, Erin Mcclure, Abby Adler, Christopher Monk, Jennifer Cameron, Samantha Smith, Eric E. Nelson, Ellen Leibenluft, Monique Ernst, Daniel Pine

Psychology Faculty Publications

A growing number of studies have found evidence that anxiety and depressive disorders are associated with atypical amygdala hyperactivation, which decreases with effective treatment. Interest has emerged in this phenomenon as a possible biological marker for individuals who are likely to benefit from tailored treatment approaches. The present study was designed to examine relationships between pre-treatment amygdala activity and treatment response in a sample of anxious children and adolescents. Participants, who were diagnosed predominantly with Generalized Anxiety Disorder (GAD), underwent functional magnetic resonance imaging (fMRI) scanning prior to treatment with fluoxetine or cognitive behavioral therapy (CBT). Results indicated significant negative …


Responses To Conflict And Cooperation In Adolescents With Anxiety And Mood Disorders, Erin B. Mcclure, Jessica M. Parrish, Eric E. Nelson, Joshua Easter, John F. Thorne, James K. Rilling, Monique Ernst, Daniel S. Pine Jan 2007

Responses To Conflict And Cooperation In Adolescents With Anxiety And Mood Disorders, Erin B. Mcclure, Jessica M. Parrish, Eric E. Nelson, Joshua Easter, John F. Thorne, James K. Rilling, Monique Ernst, Daniel S. Pine

Psychology Faculty Publications

This study examined patterns of behavioral and emotional responses to conflict and cooperation in adolescents with anxiety/mood disorders and healthy peers. We compared performance on and emotional responses to the Prisoner’s Dilemma (PD) game, an economic exchange task involving conflict and cooperation, between adolescents with anxiety/depressive disorders (A/D) (N=21) and healthy comparisons (n=29). Participants were deceived to believe their co-player (a pre-programmed computer algorithm) was another study participant. A/D adolescents differed significantly from comparisons in patterns of play and emotional response to the game. Specifically, A/D participants responded more cooperatively to cooperative overtures from their co-players; A/D girls also reported …


Abnormal Attention Modulation Of Fear Circuit Function In Pediatric Generalized Anxiety Disorder, Erin B. Mcclure, Christopher S. Monk, Eric E. Nelson, Jessica M. Parrish, Abby Adler, James R. Blair, Stephen Fromm, Dennis S. Charney, Ellen Leibenluft, Monique Ernst, Daniel S. Pine Jan 2007

Abnormal Attention Modulation Of Fear Circuit Function In Pediatric Generalized Anxiety Disorder, Erin B. Mcclure, Christopher S. Monk, Eric E. Nelson, Jessica M. Parrish, Abby Adler, James R. Blair, Stephen Fromm, Dennis S. Charney, Ellen Leibenluft, Monique Ernst, Daniel S. Pine

Psychology Faculty Publications

1. Context. Considerable work implicates abnormal neural activation and disrupted attention to facial-threat cues in adult anxiety disorders. However, in pediatric anxiety, no research has examined attention modulation of neural response to threat cues. 2. Objective. To determine whether attention modulates amygdala and cortical responses to facial threat cues differentially in adolescents with generalized anxiety disorder (GAD) and healthy adolescents. 3. Design. Case-control study. 4. Setting. Government clinical research institute. 5. Participants. Adolescent volunteers, 15 with GAD and 20 diagnosis-free. 6. Main Outcome Measure(s). Blood oxygenation level-dependent (BOLD) signal, as measured via functional magnetic resonance imaging (fMRI). During fMRI scans, …


Neural Circuitry Engaged During Unsuccessful Motor Inhibition In Pediatric Bipolar Disorder, Ellen Leibenluft, Brendan A. Rich, Deborah T. Vinton, Eric E. Nelson, Stephen J. Fromm, Lisa H. Berghorst, Paramijit Joshi, Adelaide Robb, Russell J. Schachar, Daniel P. Dickstein, Erin Tone, Daniel S. Pine Jan 2007

Neural Circuitry Engaged During Unsuccessful Motor Inhibition In Pediatric Bipolar Disorder, Ellen Leibenluft, Brendan A. Rich, Deborah T. Vinton, Eric E. Nelson, Stephen J. Fromm, Lisa H. Berghorst, Paramijit Joshi, Adelaide Robb, Russell J. Schachar, Daniel P. Dickstein, Erin Tone, Daniel S. Pine

Psychology Faculty Publications

Objective: Deficits in motor inhibition may contribute to impulsivity and irritability in children with bipolar disorder (BPD). Therefore, studies of the neural circuitry engaged during failed motor inhibition in pediatric BPD may contribute to our understanding of the pathophysiology of the illness. We tested the hypothesis that children with BPD and controls would differ in ventral prefrontal cortex (vPFC), striatal, and anterior cingulate activation during unsuccessful motor inhibition. We also compared activation in medicated vs. unmedicated children with BPD, and in children with BPD and ADHD (BPD+ADHD) vs. those with BPD but without ADHD (BPD-ADHD).

Method: Event-related fMRI study comparing …


Semantic, Executive, And Visuospatial Abilities In Mathematical Reasoning Of Referred College Students, Robin Morris, Mary K. Morris, Paul Cirino Jan 2007

Semantic, Executive, And Visuospatial Abilities In Mathematical Reasoning Of Referred College Students, Robin Morris, Mary K. Morris, Paul Cirino

Psychology Faculty Publications

Semantic retrieval (SR) and executive-procedural (EP), but not visuospatial (VS) skills, have been found to be uniquely predictive of mathematical calculation skills in a sample of clinically referred college students. This study set out to cross-validate these results in an independent sample of clinically referred college students (N = 337) as well as extend them by examination of the contributions of these cognitive domains to math reasoning skills. Results indicate that these cognitive domains were able to predict 30% of the vari- ance in calculation skills and 50% of the variance in math reasoning; however, in both cases, only the …


The Effects Of Thematic Importance On Story Recall Among Children With Attention Deficit Hyperactivity Disorder And Comparison Children, Rebecca A. Flake, Elizabeth P. Lorch, Richard Milich Jan 2007

The Effects Of Thematic Importance On Story Recall Among Children With Attention Deficit Hyperactivity Disorder And Comparison Children, Rebecca A. Flake, Elizabeth P. Lorch, Richard Milich

Psychology Faculty Publications

This study examined the recall of televised stories for younger (4-6 years) and older (7-9 years) children with and without attention deficit hyperactivity disorder (ADHD) under two different viewing conditions (toys present/toys absent). Each child watched two Rugrats television programs, once with toys present and once with toys absent. Immediately after viewing a program, the child completed a free recall of the observed story. Comparison children’s recall increased more than ADHD children’s as importance level increased, and comparison children recalled more information overall than children with ADHD. When toys were present, children with ADHD retold less coherent stories than comparison …


The Moderating Effects Of Rituals On Commitment In Premarital Involvements, Kelly Campbell, James J. Ponzetti Jan 2007

The Moderating Effects Of Rituals On Commitment In Premarital Involvements, Kelly Campbell, James J. Ponzetti

Psychology Faculty Publications

This study examined how rituals were associated with commitment, and to what extent rituals moderated the investment model variables (i.e., satisfaction level, investment size, and alternatives) on commitment. Although rituals promote commitment in marital and family relationships, the salience of rituals to commitment in premarital involvements has not been investigated. University students (N=100) who agreed to participate were in a couple relationship but not married. Findings indicated that rituals were significant predictors of commitment; however, no unique variance was accounted for once investment model variables were taken into consideration. Rituals significantly moderated the relationship between alternatives and investments, and commitment. …


Instead Of Erklären And Verstehen: William James On Human Understanding, David E. Leary Jan 2007

Instead Of Erklären And Verstehen: William James On Human Understanding, David E. Leary

Psychology Faculty Publications

Perhaps more than any other American psychologist and philosopher, William James (1842-1910) was intimately familiar with contemporary European thought and debate, including the discussion of Erklären and Verstehen advanced by Wilhelm Dilthey (1833-1911) and others around the turn of the twentieth century. Even before this discussion was initiated, James had been dealing with related issues, pondering alternative solutions, and formulating his own original views on human understanding. These views coalesced in a distinctive approach to cognition. Fundamental to this approach was a belief in possibility and probability as innate features of the physical as well as mental manifestations of the …


Legal Authority And Limitations, Phillip M. Lyons, Karen C. Kalmbach Jan 2007

Legal Authority And Limitations, Phillip M. Lyons, Karen C. Kalmbach

Psychology Faculty Publications

The core element for emergency involuntary commitment is dangerousness to oneself or others. Statutes typically also mandate immediate or near immediate petition to the courts, and require immediate or near immediate professional psychiatric review. This chapter reviews the case law associated with civil commitment statutes, both historically and in terms of current issues.


A League Of Their Own:Demographics, Motivations And Patterns Of Use Of 1,955 Male Adult Non-Medicalanabolic Steroid Users In The United States, Jason Cohen, Rick Collins, Jack Darkes, Daniel Gwartney Jan 2007

A League Of Their Own:Demographics, Motivations And Patterns Of Use Of 1,955 Male Adult Non-Medicalanabolic Steroid Users In The United States, Jason Cohen, Rick Collins, Jack Darkes, Daniel Gwartney

Psychology Faculty Publications

Background: Rule violations among elite-level sports competitors and tragedies among adolescents have largely defined the issue of non-medical anabolic-androgenic steroid (NMAAS) use for the public and policy makers. However, the predominant and oft-ignored segment of the NMAAS community exists in the general population that is neither participating in competitive sports nor adolescent. A clearer profile of NMAAS users within the general population is an initial step in developing a full understanding of NMAAS use and devising appropriate policy and interventions. This survey sought to provide a more comprehensive profile of NMAAS users by accessing a large sample of user respondents …


From Good Intentions To Good Actions: A Patient Safety Manual For Rural Healthcare Settings, Ann Freeman Cook, Helena Hoas Jan 2007

From Good Intentions To Good Actions: A Patient Safety Manual For Rural Healthcare Settings, Ann Freeman Cook, Helena Hoas

Psychology Faculty Publications

The materials offered in this patient safety manual draw on information from a robust database consisting of qualitative and quantitative data gathered over the course of nine years. These data come from a 4-year patient safety study conducted in rural hospitals in a 9-state area as well as a series of additional healthcare studies that focused on ethics and decision-making in rural settings.

The manual is a resource developed to fit a rural context. The first chapter discusses the national patient safety movement. The succeeding chapters discuss definitions of errors and lessons learned from the multi-method patient safety study. The …


Ions-Vip: A Cognitive Model For Navigating The Web Via Screen Readers, Ion Juvina Jan 2007

Ions-Vip: A Cognitive Model For Navigating The Web Via Screen Readers, Ion Juvina

Psychology Faculty Publications

This paper presents a cognitive perspective on the problem of using the Internet via screen readers. An empirical study shows similarities and dissimilarities between using the Internet via screen readers and via the standard graphical screen. In particular, spatial cognition is an important determinant of web task performance even in the absence of any visual cues. Backtracking behavior has a higher cost and impacts performance in a more negative way when using the Internet via screen readers as compared to the standard use. Selective reading can be used as an addition to the existing functionality of screen readers but more …


Observations Of Rough-Toothed Dolphins (Steno Bredanensis) Off The Coast Of Utila, Honduras, Stan A. Kuczaj Ii, Deirdre Yeater Jan 2007

Observations Of Rough-Toothed Dolphins (Steno Bredanensis) Off The Coast Of Utila, Honduras, Stan A. Kuczaj Ii, Deirdre Yeater

Psychology Faculty Publications

Local dive shop operators and fishermen report that rough-toothed dolphins (Steno bredanensis) are frequently encountered off the coast of Utila, Honduras, (16°05'46.5"N 86°55'47.8"W). Our observations suggest that at least some of these animals may constitute a resident population, although the extent of the resident group’s home range has not been determined. Twenty-eight rough-toothed dolphins were identified using photoidentification techniques, 15 of which were re-sighted on two or more occasions. The 12 animals that were re-sighted four or more times were typically seen together, suggesting that they constitute a stable social group. At least one of these dolphins is …