The intent of this thesis was to test if one of the many fitness-tracking devices, Microsoft’s Band 2 (MSB2), is accurate and reliable in detecting changes in Heart Rate (HR) and R-R intervals, during the repeated trial of two conditions of a working-memory test known as the N-Back. A 2 (devices: ECG, MSB2) × 4 (epochs: baseline 1, 1-back task, baseline 2, 3-back task) repeated measures factorial design was conducted. The participants were simultaneously equipped to the MSB2 and an electrocardiogram (ECG). The results of this study validated the MSB2 for the use in a cognitive task. The study suggests that fitness-tracking devices with similar sampling rates and features are candidates for further exploration as alternatives to ECG, in hope of making the inclusion of physiological data in psychological research more available and accessible. .

Women with breast cancer commonly experience depression. However, this condition often goes unrecognized, undertreated, and understudied, especially in ethnic minorities. If left untreated, co-existing depression in women with cancer can complicate cancer treatment, lead to poor treatment adherence for both conditions, and decrease survival. These negative consequences are considerably higher among Latinas. With the growing number of Latinos and diversity within the Latino community, the literature has identified the need to disaggregate Latinos by region of origin. Unfortunately, few studies account for these differences and no study to date has examined risk factors of depression among Latinas diagnosed with breast cancer within 5 years or by region of origin. To begin exploring predictors of depression among Latina breast cancer survivors, a theory-driven mixed-methods approach was used to identify potential risk factors for depression as a group and by region of origin (e.g., South and Central America, and Spanish-speaking Caribbean countries). This study also sought to contextualize Latina breast cancer survivors' perceptions of risk factors of depression, necessary to shape culturally and linguistically appropriate interventions and programs. The guiding theoretical framework for this study was Lazarus and Folkman's Cognitive Stress Theory and McLeroy and colleagues' Ecological Model for Health Promotion. Sixty-eight Latinas meeting eligibility criteria were recruited from Latino cancer support groups and other community organizations in the West Central Florida area. Both purposive and snowball-sampling procedures were used to recruit participants. A researcher-administered closed-ended questionnaire, followed by a semi-structured interview addressed research aims and the primary outcome variable. Descriptive statistics (mean, standard deviations, frequency, percent), bivariate and multiple linear regression analyses were completed using IBM SPSS V20. Thematic and content analyses were completed for qualitative data using Atlas.ti 6.2. Findings revealed the need for easily accessible, culturally and linguistically appropriate psychosocial services to help women adjust to cancer diagnosis and emphasized the need to disaggregate Latinos in future studies as findings may differ by Latino region of origin. Multivariate analyses showed appraisal variables (more perceived harm, more perceived threat, less perceived challenge - overcoming cancer), coping variables (less active coping and more self-blame), and poor body image to be significantly associated with an increased risk for the likelihood of depression. Appraisal variables accounted for greatest explained variance (36%). Risk factor differences by region of origin were observed in sub-group multivariate analyses, but this study was unable to conclude if risk factors play a different role by region of origin in a combined model. Twenty-two salient themes emerged from the thematic analyses of the qualitative data on all levels of the ecological model (e.g., acceptance of illness, lack of family and peer support, lack of access to care, language barriers). Content analyses demonstrated agreement on a majority of salient themes amongst groups (presence of depression symptoms and by region of origin) about the perceptions of risk factors for depression. "Helping oneself" and "discrimination" demonstrated significant difference in terms of the frequency these themes were discussed by presence of depression symptoms and "poor body-image" by region of origin. In conclusion, data from this study provided quantitative and qualitative data of potential risk factors of depression, which in turn can be used to conduct additional epidemiological studies to examine prognostic factors longitudinally. Study findings may also contribute to the existing literature of risk factors for depression to encourage future intervention and programs to reduce mental health disparities, to raise the awareness of the need for mental health services, and to inform mental health screening guidelines.

This study applies bereavement and media use theoretical perspectives to examine how survivors use media to cope with spousal loss during the first two years. Specifically, this study explores whether survivors’ television use is associated with grief intensity. Potential associations between television use and grief intensity are explored using an online survey. A media use for coping scale is developed. The relationship between television oscillation (i.e., equal use of television for respite, and to cope with primary and secondary stressors) and grief intensity is also explored, and ten specific moderators of this relationship are examined: recency of loss, type of loss, social support, family proximity and contact, marital relationship quality, economic stability, pre-existing physical and mental health issues, and change in television use. Results were collected from 356 spousal survivors and indicate that television use to cope is associated with grief intensity. Survivors that report high television use in general are using more television for relaxation, companionship, acceptance, positive reinterpretation and growth, and emotional and instrumental support. The most dramatic effects are observed with television use for relaxation and companionship, and the smallest effects with television use for emotional and instrumental support. However, there was no association between television use for respite, or to cope with primary and secondary stressors and grief intensity. Results support the value of social support, family contact at the time of loss, fewer physical health issues, and decreasing general television use in promoting more positive bereavement outcomes. Results support television oscillation as a predictor of grief intensity, but only under certain circumstances. Four of the models show significant moderator effects between television oscillation and grief intensity: social support at the time of loss, family contact at the time of loss, pre-existing physical health issues, and change in television use since the loss. When survivors have less social support at the time of loss, television oscillation is associated with less grief intensity as predicted. However, when survivors have more social support, television oscillation is marginally associated with more grief intensity. Likewise, when survivors have less family contact, television oscillation is associated with less grief intensity as predicted. Conversely, when survivors have more family contact, television oscillation is associated with more grief intensity. When survivors have more pre-existing physical health issues, television oscillation is not associated with grief intensity as predicted. For survivors with fewer pre-existing physical health issues, television oscillation is associated with less grief intensity. When survivors decrease television use by approximately one hour, television oscillation is marginally associated with less grief intensity. On the other hand, when survivors increase television use, television oscillation is not associated with grief intensity. Current general television use was a highly significant control variable in all moderator analyses indicating more television use to cope is associated with more grief intensity. Recency, type of loss, marital relationship quality, family proximity, economic stability, and pre-existing mental health issues did not significantly moderate the relationship between television oscillation and grief intensity. This study extends previous work by merging the bereavement and media use literatures, and in the development of a media use for coping scale. Moreover, it provides important empirical evidence on theoretical models about bereavement. This expands the potential for discussions about the association of individual vulnerabilities with more positive bereavement outcomes.

Today, many organisations are adopting offices that have an open design with or without flexible seating. While advocates of open-plan offices propose that these office types lead to cost savings and aid inter and intra-team communication, opponents argue that these office types are associated with decreased performance and worsened health among employees. This thesis investigates how the type of office (cell offices, shared room offices, small open-plan offices, medium-sized open plan offices, large open-plan offices and flex offices) influences employee health and performance, and whether this is different for different personalities and jobs with different concentration demands. Data were gathered by means of surveys and cognitive tests from five organisations with different office types. In Study I (N=1241), the aim was to investigate the main effect of office type on indicators of health and performance and the interaction effect of office type with the need to concentrate in order to carry out work tasks. Office type alone was associated with distraction and cognitive stress in such a way that cell offices were associated with fewest problems, followed by flex offices, while open-plan offices were associated with the most problems. While employees in open-plan offices and employees in flex offices reported more problems as the need for concentration increased, employees in cell offices reported the same level of problems regardless of the need of concentration. Study II (N=527) investigated how performance on a memory test was affected during normal working conditions as compared to a quiet baseline. There was a negative dose-response relationship between the size of the open-plan office environment and the drop in word recall during the normal working condition. However, Study II also showed that individuals working in cell offices had as high a drop in performance during normal working conditions as did those working in large open-plan office environments. Study III (N=1133–1171) focused on the interaction effect between office type and individual differences in personality. The personality trait agreeableness interacted with office type on the outcome variables distraction and job satisfaction. Specifically, Study III may indicate that as offices get more open and flexible, agreeable people will report more problems. In conclusion, the studies in the present thesis have implications for practice and suggest that office type impacts on employee health and performance, while concentration demands of the job and agreeableness moderate the effects. Although employees report higher level of distraction in open-plan office environments, when performance on a demanding task is measured, cell offices are not as favourable during normal working conditions as self-reported data usually indicate. Organisations should also be aware that, among open-plan offices, small open-plan offices are associated with fewer problems. / Kontorslandskap med eller utan fasta arbetsstationer förekommer idag i många organisationer. Förespråkare för kontorslandskap hänvisar till kostnadsbesparing samt förbättrade förutsättningar för kommunikation, medan motståndare hävdar att kontorslandskap leder till försämrad prestation och hälsa bland medarbetarna. Denna avhandling undersöker om kontorstyp påverkar de anställdas hälsa och prestation, samt om effekten av kontorstyp varierar beroende på de anställdas personlighet och typ av arbetsuppgifter. Data i form av enkätsvar och prestation på kognitiva tester samlades in från fem organisationer med olika typer av kontorslösningar (cellkontor, delade kontorsrum, små kontorslandskap, mellanstora kontorslandskap, stora kontorslandskap och flexkontor). I studie I (N = 1241) var syftet att undersöka huvudeffekten av kontorstyp på indikatorer för hälsa och prestation samt om effekten är beroende av koncentrationskraven i arbetet. Kontorstyp visade samband med distraktion och kognitiv stress på så sätt att medarbetare i cellkontor uppgav minst problem, följt av de i flexkontor, medan kontorslandskap var förknippade med mer problem. Vidare rapporterade anställda som hade arbetsuppgifter som krävde koncentration mer problem i kontorslandskap och flexkontor, medan anställda i cellkontor, oavsett arbetets krav, rapporterade lika mycket problem. I studie II (N = 527) undersöktes hur prestation på ett minnestest påverkades under normala arbetsförhållanden jämfört med en tyst referensmätning i olika kontorstyper. Det fanns ett negativt dos-responssamband mellan storleken på kontorslandskapet och hur många procent sämre medarbetare presterade under normala arbetsförhållanden. Men Studie II visade också att personer som arbetar i cellkontor hade ett lika högt bortfall i prestation under normala arbetsförhållanden som de som arbetade i stora kontorslandskap. I studie III (N = 1133-1171) låg fokus på interaktionseffekten mellan kontorstyp och personlighet. Vänlighet var den enda personlighetsvariabeln som interagerade med kontorstyp på utfallsvariablerna distraktion och arbetstillfredsställelse. Mer specifikt visade Studie III att när kontoret blir mer öppet och flexibelt, så rapporterar människor som skattar sig högt på personlighetsvariabeln vänlighet fler problem. Resultaten i avhandlingen kan få flera praktiska implikationer då den visar att kontorstyp påverkar medarbetarnas hälsa och prestation, medan koncentrationskrävande arbetsuppgifter och vänlighet modererar effekterna. Vidare visar avhandlingen att även om anställda rapporterar mindre distraktion i cellkontor jämfört med i kontorslandskap, behöver inte cellkontor vara lika gynnsamma som självskattade mått visar när prestationen mäts med objektiva mått under normala arbetsförutsättningar, i det här fallet ett minnestest. Slutligen bör organisationer även vara medvetna om att avhandlingen visar en viss tendens att små kontorslandskap är förknippade med mindre problem än stora. / <p>At the time of the doctoral defense, the following paper was unpublished and had a status as follows: Paper 3: Manuscript.</p>

This article reviews research and professional trends in the field of health psychology and behavioral medicine. I also discuss recent research on stress, immune system, behavioral change and health promotion. An increasing focus on the human immunodeficiencyvirus (HN/AIDS) is very important given the Rde of health psychology in terms of prevencing further spread of the epidemic and in maintaining a good qualiry of life. I examined psychosocial and immune system stress responses in individuals before and after their nocification of HN status andas a consequence of stress management intervention procedures. Psychological and social factors in the development of illness are considered. / Este articulo revisa líneas de investigación y profesionales en el campo de la psicología de la salud y la medicina conductual. Se discuten investigaciones recientes acerca del estrés, el sistema inmunológico, los cambios conducruales y la promoción de la salud. Un énfasis en el virus de inmunodeficiencia (HN/SIDA) es muy importante dado el rol de la psicología de la salud para prevenir la expansión de la epidemia y mantener una buena calidad de vida. Se han examinado las respuestas psicosociales y del sistema inmunológico de individuos antes y después de ser notificados de su status de HN y como consecuencia de los procedimientos de intervención para manejar el estrés. Se consideran los factores psicológicos y sociológicos en el desarrollo de la enfermedad.