scholarly journals An Exploration of Apathy and Impulsivity in Parkinson Disease

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
David J. Ahearn ◽  
Kathryn McDonald ◽  
Michelle Barraclough ◽  
Iracema Leroi
Keyword(s):  
Factor Analysis ◽  
Parkinson Disease ◽  
Symptom Onset ◽  
Regression Models ◽  
Future Orientation ◽  
Motor Symptom ◽  
Disease Stage ◽  
Factor Solution ◽  
Security Planning ◽  
Clinically Significant

Background. Apathy and impulsivity in Parkinson disease (PD) are associated with clinically significant behavioral disorders.Aim. To explore the phenomenology, distribution, and clinical correlates of these two behaviors.Methods. In PD participants (n=99) without dementia we explored the distribution of measures of motivation and impulsivity using univariate methods. We then undertook factor analysis to define specific underlying dimensions of apathy and impulsivity. Regression models were developed to determine the associated demographic and clinical features of the derived dimensions.Results. The factor analysis of apathy (AES-C) revealed a two-factor solution: “cognitive-behavior” and “social indifference”. The factor analysis of impulsivity (BIS-11) revealed a five-factor solution: “inattention”; “impetuosity”; “personal security”; “planning”; and “future orientation”. Apathy was significantly associated with: age, age of motor symptom onset (positive correlation), disease stage, motor symptom severity, and depression. Impulsivity was significantly associated with: age of motor symptom onset (negative correlation), gambling and anxiety scores, and motor complications. We observed an overlap of apathy and impulsivity in some participants.Conclusion. In PD, apathy and impulsivity have specific phenomenological profiles and are associated with particular clinical phenotypes. In spite of this, there is some overlap of behaviors which may suggests common aspects in the pathology underlying motivation and reward processes.

Laterality of motor symptom onset and facial expressivity in Parkinson disease using face digitization

2021 ◽  
pp. 1-14
Author(s):  
Adrianna M. Ratajska ◽  
Anne N. Nisenzon ◽  
Francesca V. Lopez ◽  
Alexandra L. Clark ◽  
Didem Gokcay ◽  
...  
Keyword(s):  
Parkinson Disease ◽  
Symptom Onset ◽  
Motor Symptom ◽  
Facial Expressivity

Task and Relationship Conflict at Work

2011 ◽  
Vol 27 (3) ◽  
pp. 171-178 ◽  
Author(s):  
Nale Lehmann-Willenbrock ◽  
Anna Grohmann ◽  
Simone Kauffeld
Keyword(s):  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Negative Impact ◽  
Longitudinal Design ◽  
Industrial Sector ◽  
Task Conflict ◽  
Relationship Conflict ◽  
Factor Solution ◽  
Convenience Sample ◽  
Confirmatory Factor

The distinction between task and relationship conflict is well established. Based on Jehn’s (1995) intragroup conflict scale, we developed an economic six-item questionnaire for assessing relationship and task conflict in work groups. Confirmatory factor analysis was performed on data from a convenience sample (N = 247), and confirmed the original two-factor solution. The stability of the obtained two-factor solution was supported by confirmatory factor analysis in a longitudinal design with a second sample (N = 431) from the industrial sector. In line with previous research, the two types of conflict were intercorrelated. Moreover, the two subscales showed differential longitudinal effects on team outcomes. Task conflict was beneficial for performance in nonroutine tasks (but not in routine tasks). Relationship conflict had a negative impact on team viability and coworker trust.

Subclinical Sadism and the Dark Triad

2019 ◽  
Vol 40 (3) ◽  
pp. 127-133 ◽  
Author(s):  
Laura K. Johnson ◽  
Rachel A. Plouffe ◽  
Donald H. Saklofske
Keyword(s):  
Factor Analysis ◽  
University Students ◽  
Personality Traits ◽  
Exploratory Factor Analysis ◽  
Convergent Validity ◽  
Dark Triad ◽  
Antisocial Personality ◽  
Factor Solution ◽  
Online Study ◽  
Antisocial Personality Traits

Abstract. The Dark Triad is a constellation of three antisocial personality traits: Machiavellianism, narcissism, and psychopathy. Recently, researchers have introduced a “Dark Tetrad” that includes subclinical sadism, although others suggest considerable overlap between psychopathy and sadism. To clarify the position of sadism within the Dark Triad, an online study was conducted with 615 university students. Exploratory factor analysis revealed that a six-factor solution fit the data best, representing Machiavellianism, psychopathy, physical sadism, verbal sadism, narcissism, and vicarious sadism. Furthermore, convergent validity was supported through sadism’s correlations with the HEXACO personality traits. The results support sadism’s inclusion within the Dark Tetrad as a unique construct but with some conceptual overlap with psychopathy.

Celebrity Worship Among University Students in Malaysia

2011 ◽  
Vol 16 (4) ◽  
pp. 334-342 ◽  
Author(s):  
Viren Swami ◽  
Tomas Chamorro-Premuzic ◽  
Khairul Mastor ◽  
Fatin Hazwani Siran ◽  
Mohammad Mohsein Mohammad Said ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Structural Equation Modeling ◽  
Structural Equation ◽  
Attitude Scale ◽  
Equation Modeling ◽  
Future Research ◽  
The West ◽  
Factor Solution ◽  
Movie Stars ◽  
Three Factor

The present study examined conceptual issues surrounding celebrity worship in a Malay-speaking population. In total, 512 Malay and 269 Chinese participants from Malaysia indicated who their favorite celebrity was and completed the Celebrity Attitude Scale (CAS) as well as a range of demographic items. Results showed that the majority of Malay and Chinese participants selected pop stars and movie stars as their favourite celebrities, mirroring findings in Western settings. In addition, exploratory factor analysis revealed a three-factor solution of the CAS that was consistent with previous studies conducted in the West. Structural equation modeling further revealed that participant’s age was negatively associated with celebrity worship and that self-rated attractiveness was positively associated with celebrity worship. Overall, the present results suggest that celebrity worship in Malaysia may be driven by market and media forces, and future research may well be guided by use of the CAS.

Effect of motor symptom onset asymmetry on facial expressivity

2008 ◽  
Author(s):  
Anne N. Nisenzon ◽  
Utaka Springer ◽  
Ann Mikos ◽  
Michael S. Okun ◽  
Hubert Fernandez ◽  
...  
Keyword(s):  
Symptom Onset ◽  
Motor Symptom ◽  
Facial Expressivity

Patterns of striatal dopamine depletion in early Parkinson disease

Neurology ◽  
2020 ◽  
Vol 95 (3) ◽  
pp. e280-e290 ◽  
Author(s):  
Seok Jong Chung ◽  
Hye Sun Lee ◽  
Han Soo Yoo ◽  
Yang Hyun Lee ◽  
Phil Hyu Lee ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Parkinson Disease ◽  
Cox Regression ◽  
Early Stage ◽  
Freezing Of Gait ◽  
Striatal Dopamine ◽  
Dopamine Depletion ◽  
Wearing Off ◽  
Striatal Dopamine Depletion ◽  
Selective Dopamine

ObjectiveTo investigate whether the patterns of striatal dopamine depletion on dopamine transporter (DAT) scans could provide information on the long-term prognosis in Parkinson disease (PD).MethodsWe enrolled 205 drug-naive patients with early-stage PD, who underwent 18F-FP-CIT PET scans at initial assessment and received PD medications for 3 or more years. After quantifying the DAT availability in each striatal subregion, factor analysis was conducted to simplify the identification of striatal dopamine depletion patterns and to yield 4 striatal subregion factors. We assessed the effect of these factors on the development of levodopa-induced dyskinesia (LID), wearing-off, freezing of gait (FOG), and dementia during the follow-up period (6.84 ± 1.80 years).ResultsThe 4 factors indicated which striatal subregions were relatively preserved: factor 1 (caudate), factor 2 (more-affected sensorimotor striatum), factor 3 (less-affected sensorimotor striatum), and factor 4 (anterior putamen). Cox regression analyses using the composite scores of these striatal subregion factors as covariates demonstrated that selective dopamine depletion in the sensorimotor striatum was associated with a higher risk for developing LID. Selective dopamine loss in the putamen, particularly in the anterior putamen, was associated with early development of wearing-off. Selective involvement of the anterior putamen was associated with a higher risk for dementia conversion. However, the patterns of striatal dopamine depletion did not affect the risk of FOG.ConclusionsThese findings suggested that the patterns of striatal dopaminergic denervation, which were estimated by the equation derived from the factor analysis, have a prognostic implication in patients with early-stage PD.

The five‐factor personality model in applied settings

1994 ◽  
Vol 8 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Itzhak Montag ◽  
Joseph Levin
Keyword(s):  
Factor Analysis ◽  
Personality Inventory ◽  
The Other ◽  
Factor Solution ◽  
Male And Female ◽  
Neo Personality Inventory ◽  
Clear Cut ◽  
Five Factors ◽  
Male Subjects ◽  
Female Subjects

Two studies of the Revised NEO‐Personality Inventory (NEO‐PI‐R) conducted on two different applicant samples (one consisting of 539 female subjects and the other consisting of 396 male subjects) are reported. Factor analysis of the female sample yielded a five‐factor solution, highly congruent with the factors presented by Costa, McCrae and Dye (1991). Results of the male data were less clear‐cut, yielding four to five factors which were moderately congruent with the American data. The combined male and female sample showed again high congruence coefficients. Various minor deviations in the location of the facet variables are discussed.

The Multidimensional Dream Inventory: Preliminary Evidence for Validity and Reliability

1997 ◽  
Vol 85 (3) ◽  
pp. 803-808 ◽  
Author(s):  
Robert J. Kallmeyer ◽  
Edward C. Chang
Keyword(s):  
College Students ◽  
Factor Analysis ◽  
Individual Difference ◽  
Preliminary Evidence ◽  
Dream Recall ◽  
Validity And Reliability ◽  
Factor Solution ◽  
Difference Measure ◽  
Good Internal Consistency ◽  
Individual Difference Measure

The present study focused on the development of the Multidimensional Dream Inventory, an individual difference measure of dimensions of dreams. Items were administered to 151 college students. Consistent with expectations, results of an exploratory factor analysis of intercorrelations among items indicated a four-factor solution was appropriate. As a result, four dream-relevant scales were constructed, viz, Dream Importance, Dream Vividness, Dream Usefulness, and Dream Recall. In addition, these scales showed good internal consistency for research. Implications and uses for the Multidimensional Dream Inventory were discussed.

Factor Analysis of the Stability of Self Scale

1980 ◽  
Vol 47 (3_suppl) ◽  
pp. 1160-1162 ◽  
Author(s):  
Stephen L. Franzoi ◽  
Benjamin J. Reddish
Keyword(s):  
Factor Analysis ◽  
Factor Structure ◽  
Principal Components ◽  
Analysis Data ◽  
Factor Solution ◽  
The Stability

The factor structure of Rosenberg's Stability of Self Scale (1965) was investigated via principal components factor analysis. Data from 92 male and 171 female undergraduates yielded a one-factor solution, supporting Rosenberg's contention that the scale is unidimensional.

VALIDITY AND RELIABILITY OF THE GREEK VERSION OF THE SATISFACTION WITH LIFE SCALE (SWLS)

2021 ◽  
pp. 214-216
Author(s):  
Eleni Theodoropoulou
Keyword(s):  
Physical Activity ◽  
Factor Analysis ◽  
Satisfaction With Life ◽  
Demographic Variables ◽  
Satisfaction With Life Scale ◽  
Validity And Reliability ◽  
Greek Version ◽  
Factor Solution ◽  
Coef Cients ◽  
Life Scale

The current study examined the validity and reliability of the Greek version of the Satisfaction with Life Scale (SWLS). An exploratory factor analysis was performed in a sample of 360 students (M ± SD = 23.54 ± 5.96 years). In addition, a conrmatory factor analysis was applied in a second sample of 726 adults (M ± SD = 38.80 ± 13.64 years). Further, associations were examined among the SWLS and physical activity and various socio-demographic variables. Results indicated a one-factor solution for the SWLS and satisfactory validity and reliability coefcients.

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