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Measurement Of Negative Affectivity In Psychometrically Defined Schizotypy Using Facial Electromyography
Title
Measurement Of Negative Affectivity In Psychometrically Defined Schizotypy Using Facial Electromyography.
Creator
Mitchell, Jonathan, Cassisi, Jeffrey, Bedwell, Jeffrey, Beidel, Deborah, University of Central Florida
Abstract / Description
Schizotypy is a sub-threshold syndrome associated with schizophrenia. Much of the research on schizotypy concerns its component features, one of which being blunted or constricted affect. While several investigations have addressed this common (")negative(") symptom within the context of schizophrenia, few have focused on schizotypy directly, and none have utilized psychophysiological measurement to examine affective constriction. The present investigation uses facial electromyography (EMG)...
Show moreSchizotypy is a sub-threshold syndrome associated with schizophrenia. Much of the research on schizotypy concerns its component features, one of which being blunted or constricted affect. While several investigations have addressed this common (")negative(") symptom within the context of schizophrenia, few have focused on schizotypy directly, and none have utilized psychophysiological measurement to examine affective constriction. The present investigation uses facial electromyography (EMG) to measure patterns of affective expression within a psychometrically defined schizotypal population when presented threatening and distressing pictures from the IAPS. Twenty-eight individuals with elevated schizotypal features and 20 healthy controls were recruited for this investigation. The participants observed the series of pictures and provided self-report ratings of affective valance and arousal while their physiological responses were recorded. The protocol used here closely matched that used by Bradley and Lang (2007) and produced a similar pattern of results across all participants on self-reported ratings and physiological measures. Results further suggest that those with schizotypal features did not differ from control participants in self-reported ratings of negative affect or autonomic arousal. A three-way interaction in facial EMG measurement revealed that while schizotypic males demonstrated the expected pattern of blunted facial affective expression, schizotypic females displayed the opposite pattern. That is, females with psychometrically schizotypy demonstrated significant elevations in negative facial affective expression while viewing distressing pictures. We argue that these findings reflect unidentified sex differences in affective expression in schizotypy, and we discuss implications for assessment and diagnostic procedures among individuals with personality disorders.
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Date Issued
2013
Identifier
CFE0004721, ucf:49808
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0004721
Gender Differences and Fast Food Preferences Among U.S. College Students
Title
Gender Differences and Fast Food Preferences Among U.S. College Students.
Creator
Persaud, Donald, Matejowsky, Ty, Geiger, Vance, Williams, Lana, University of Central Florida
Abstract / Description
The intent of this research is to examine the relationship of corporate fast food and health within the context of gender. It tests the hypothesis that Western perceptions of masculinity and femininity inform a differentiated pattern of food preference, which will correlate with health as measured by Body Mass Index (BMI). The targeted sample population for the study is the undergraduate community of the University of Central Florida, and fast food is a chosen dietary medium because it is an...
Show moreThe intent of this research is to examine the relationship of corporate fast food and health within the context of gender. It tests the hypothesis that Western perceptions of masculinity and femininity inform a differentiated pattern of food preference, which will correlate with health as measured by Body Mass Index (BMI). The targeted sample population for the study is the undergraduate community of the University of Central Florida, and fast food is a chosen dietary medium because it is an increasingly ubiquitous source of caloric energy in the American foodscape, representative of the mass production model applied to cuisine in Western nations. Data regarding fast food consumption habits were collected via survey producing a sample size of n=165 (n=116 females, n=49 males). Statistical analysis applied to this data yields conflicting results. While no gender based food preference is demonstrated, a correlation between BMI and frequency of consumption can be established. This suggests a gender-differentiated preference for fast food in general, if not for specific food items. From this sample, respondents were interviewed (n=14 females, n=8 males). Analysis of these interviews reveals an acute awareness by females of the connection between diet and health that is not reflected by males. Whether this perceived difference is based on an actual disparity of health education or a willingness to express this knowledge, it indicates a discrepancy which is likely attributable to cultural influences. While this study does not reveal gender-based differences in perception of specific foods, it does suggest disproportionate consumption patterns within genders which reflect distinct and contrasting cultural expectations in the U.S.
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Date Issued
2013
Identifier
CFE0005044, ucf:49951
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0005044
EDUCATIONAL VIDEO GAME EFFECTS UPON MATHEMATICS ACHIEVEMENT AND MOTIVATION SCORES: AN EXPERIMENTAL STUDY EXAMINING DIFFERENCES BETWEEN THE SEXES
Title
EDUCATIONAL VIDEO GAME EFFECTS UPON MATHEMATICS ACHIEVEMENT AND MOTIVATION SCORES: AN EXPERIMENTAL STUDY EXAMINING DIFFERENCES BETWEEN THE SEXES.
Creator
Kappers, Wendi, Hirumi (Co-Chair: Witta), Atsusi (Co-Chair: Lea), University of Central Florida
Abstract / Description
An experimental research study using a mixed-method analysis to was conducted to examine educational video game effects on mathematics achievement and motivation between sexes. This study examined sex difference in a 7th grade mathematics (Mathematics 2/Mathematics 2 Advanced) classroom (n=60) learning algebra. Attributes and barriers relating to educational video game play, preference, and setting characteristics were explored. To examine achievement and motivation outcomes, a repeated...
Show moreAn experimental research study using a mixed-method analysis to was conducted to examine educational video game effects on mathematics achievement and motivation between sexes. This study examined sex difference in a 7th grade mathematics (Mathematics 2/Mathematics 2 Advanced) classroom (n=60) learning algebra. Attributes and barriers relating to educational video game play, preference, and setting characteristics were explored. To examine achievement and motivation outcomes, a repeated-measure (SPSS v14) test was used. The analysis included ethnographic results from both student and teacher interview and observation sessions for data triangulation. Results revealed a statistically significant academic mathematics achievement score increase (F =21.8, df =1, 54, p<.05). Although, mathematics class motivation scores did not present significance (F =.79, df =1, 47, p>.05), both sexes posted similar data outcomes with regard to mathematics class motivation after using an educational video game as treatment during an eighteen-week term in conjunction with receiving in-class instruction. Additionally, there was an increase in male variability in standard deviation score (SDmotivationpre=8.76, SDmotivation post=11.70) for mathematics class motivation. Lastly, self-reported differences between the sexes for this limited sample, with regard to game design likes and dislikes and observed female game play tendencies, were also investigated. The data presented customization as a unified, but most requested, game design need between the sexes. Between sex differences were found only to be superficial other than a female delay in game acceptance with regard to time and game play comfort.
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Date Issued
2009
Identifier
CFE0002586, ucf:48270
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0002586
TIME ESTIMATION AND HAND PREFERENCE
Title
TIME ESTIMATION AND HAND PREFERENCE.
Creator
Rodriguez, Maria, Hancock, Peter, University of Central Florida
Abstract / Description
This work examines the effect of participants' gender and handedness on the perception of short intervals of time. The time estimation task consisted of an empty production procedure with forty trials at each of four intervals of one, three, seven, and twenty seconds. The four target intervals represent a natural logarithmic progression and a series that bracket important temporal thresholds. The order of presentation of those intervals was randomized across participants but yoked across the...
Show moreThis work examines the effect of participants' gender and handedness on the perception of short intervals of time. The time estimation task consisted of an empty production procedure with forty trials at each of four intervals of one, three, seven, and twenty seconds. The four target intervals represent a natural logarithmic progression and a series that bracket important temporal thresholds. The order of presentation of those intervals was randomized across participants but yoked across the sexes in each of the respective dominant hand groups. The two between-subject factors, with two levels each, were sex and handedness. Participants produced forty estimates at each of the required intervals, which was the first within-subject factor, estimated interval being the other. T-tests were conducted on the dependent measures, the time estimates in terms of their variability and their central tendency with respect to the target duration. If handedness plays a significant role in timing, this may indicate differences between hemispheric functioning as a possible causal mechanism. If there is cerebral asymmetry in time perception, namely if one hemisphere is more competent regarding time perception, accuracy in judging duration should be higher for the contralateral hand. The results of the present study indicated that there are no significant differences in performance between right-handed and left-handed participants, or between male and female participants, in the estimation of short intervals of time.
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Date Issued
2005
Identifier
CFE0000768, ucf:46572
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0000768
WHAT IS APPEALING?:SEX AND RACIAL DIFFERENCES IN PERCEPTIONS OF THE PHYSICAL ATTRACTIVENESS OF WOMEN
Title
WHAT IS APPEALING?:SEX AND RACIAL DIFFERENCES IN PERCEPTIONS OF THE PHYSICAL ATTRACTIVENESS OF WOMEN.
Creator
Sewell, Rachel, Donley, Amy, University of Central Florida
Abstract / Description
In today's society a beauty ideal exists in America, which attempts to define female beauty as fitting into a certain mold. Certain characteristics have been deemed the most attractive when it comes to female physical attractiveness, and an ideal image of beauty has been presented by the media. This research focuses on whether or not everyone buys into that beauty ideal, and examines the impact that a person's sex and race has on the physical characteristics which that individual defines as...
Show moreIn today's society a beauty ideal exists in America, which attempts to define female beauty as fitting into a certain mold. Certain characteristics have been deemed the most attractive when it comes to female physical attractiveness, and an ideal image of beauty has been presented by the media. This research focuses on whether or not everyone buys into that beauty ideal, and examines the impact that a person's sex and race has on the physical characteristics which that individual defines as the most appealing. Surveys were administered to 300 UCF students age 18-35. Participants were asked about ten different physical characteristics relating to women, and were asked to choose the characteristic among each group that they found the most physically attractive or beautiful. The study showed that both sex and racial differences do exist, and that there are variations in what different people consider beautiful. Not everyone has the same opinion on what is attractive in regards to the physical appearance of women.
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Date Issued
2011
Identifier
CFH0004117, ucf:44862
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFH0004117