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1.
J Pers Assess ; 106(1): 37-48, 2024.
Article in English | MEDLINE | ID: mdl-36857474

ABSTRACT

In the present study, we examined performance rating correlates of the Selection Validation Survey (SVS), an informant rating form used to describe the characteristics of newly hired public safety personnel following their initial training period. We correlated SVS ratings for n = 174 police officers with aggregate scores derived from daily performance observation ratings provided by their field training officers (i.e., senior law enforcement officers assigned to train, observe, and evaluate police recruits during a formal 16-week training period). Results generally indicated moderate to strong associations between conceptually similar SVS ratings and field training officer scores, providing evidence that the SVS variables validly summarize performance-relevant data accrued during the field training period. For example, a single SVS item asking the rater to characterize the officer's overall field performance correlated highly in the expected direction (Spearman's rho = -.69) with a composite of daily ratings describing the officer's observed field performance and problem-solving skills. Taken together, these findings indicate that the SVS meaningfully and efficiently captures a range of important information regarding the performance and professional skills of new police officers, providing a useful validation criterion for predictors of police officer performance.


Subject(s)
Personnel Selection , Police , Humans , Surveys and Questionnaires
2.
J Pers Assess ; 106(1): 27-36, 2024.
Article in English | MEDLINE | ID: mdl-37027242

ABSTRACT

Psychological testing is an important component of the screening process for public safety officers. The use of standardized measures is intended to increase the objectivity of preemployment evaluations, highlighting the importance of examining tests used in these assessments for evidence of differential validity. Differential validity is indicated when a screening measure is unequally associated with, or systematically over- or under-predicts, a criterion across demographic groups. In the current study, we examined for differential validity in Minnesota Multiphasic Personality Inventory-3 (MMPI-3) scores in a sample of 527 police officer candidates (455 males, 72 females). We first calculated correlations between MMPI-3 scores and job-relevant historical variables. Next, for variable pairings that yielded at least a small effect size, regression models were estimated in a multi-group framework comparing associations between MMPI-3 scores and the historical variables across men and women. The analyses yielded statistical evidence of negligible differential validity across gender in police officer screenings. Implications of these findings and limitations of this study are discussed.


Subject(s)
MMPI , Police , Humans , Male , Female , Police/psychology , Reproducibility of Results
3.
eNeuro ; 10(9)2023 09.
Article in English | MEDLINE | ID: mdl-37640541

ABSTRACT

To survive, animals must meet their biological needs while simultaneously avoiding danger. However, the neurobiological basis of appetitive and aversive survival behaviors has historically been studied using separate behavioral tasks. While recent studies in mice have quantified appetitive and aversive conditioned responses simultaneously (Jikomes et al., 2016; Heinz et al., 2017), these tasks required different behavioral responses to each stimulus. As many brain regions involved in survival behavior process stimuli of opposite valence, we developed a paradigm in which mice perform the same response (nose poke) to distinct auditory cues to obtain a rewarding outcome (palatable food) or avoid an aversive outcome (mild footshoock). This design allows for both within-subject and between-subject comparisons as animals respond to appetitive and aversive cues. The central nucleus of the amygdala (CeA) is implicated in the regulation of responses to stimuli of either valence. Considering its role in threat processing (Wilensky et al., 2006; Haubensak et al., 2010) and regulation of incentive salience (Warlow and Berridge, 2021), it is important to examine the contribution of the CeA to mechanisms potentially underlying comorbid dysregulation of avoidance and reward (Sinha, 2008; Bolton et al., 2009). Using this paradigm, we tested the role of two molecularly defined CeA subtypes previously linked to consummatory and defensive behaviors. Significant strain differences in the acquisition and performance of the task were observed. Bidirectional chemogenetic manipulation of CeA somatostatin (SOM) neurons altered motivation for reward and perseveration of reward-seeking responses on avoidance trials. Manipulation of corticotropin-releasing factor neurons (CRF) had no significant effect on food reward consumption, motivation, or task performance. This paradigm will facilitate investigations into the neuronal mechanisms controlling motivated behavior across valences.


Subject(s)
Central Amygdaloid Nucleus , Animals , Mice , Conditioning, Operant , Motivation , Affect , Neurons
4.
bioRxiv ; 2023 Jul 08.
Article in English | MEDLINE | ID: mdl-37461627

ABSTRACT

To survive, animals must meet their biological needs while simultaneously avoiding danger. However, the neurobiological basis of appetitive and aversive survival behaviors has historically been studied using separate behavioral tasks. While recent studies in mice have quantified appetitive and aversive conditioned responses simultaneously (Heinz et al., 2017; Jikomes et al., 2016), these tasks required different behavioral responses to each stimulus. As many brain regions involved in survival behavior process stimuli of opposite valence, we developed a paradigm in which mice perform the same response (nosepoke) to distinct auditory cues to obtain a rewarding outcome (palatable food) or avoid an aversive outcome (mild footshoock). This design allows for both within- and between-subject comparisons as animals respond to appetitive and aversive cues. The central nucleus of the amygdala (CeA) is implicated in the regulation of responses to stimuli of either valence. Considering its role in threat processing (Haubensak et al., 2010; Wilensky et al., 2006) and regulation of incentive salience (Warlow and Berridge, 2021), it is important to examine the contribution of the CeA to mechanisms potentially underlying comorbid dysregulation of avoidance and reward (Bolton et al., 2009; Sinha, 2008). Using this paradigm, we tested the role of two molecularly defined CeA subtypes previously linked to consummatory and defensive behaviors. Significant strain differences in the acquisition and performance of the task were observed. Bidirectional chemogenetic manipulation of CeA somatostatin (SOM) neurons altered motivation for reward and perseveration of reward-seeking responses on avoidance trials. Manipulation of corticotropin-releasing factor neurons (CRF) had no significant effect on food reward consumption, motivation, or task performance. This paradigm will facilitate investigations into the neuronal mechanisms controlling motivated behavior across valences. Significance Statement: It is unclear how different neuronal populations contribute to reward- and aversion-driven behaviors within a subject. To address this question, we developed a novel behavioral paradigm in which mice obtain food and avoid footshocks via the same operant response. We then use this paradigm to test how the central amygdala coordinates appetitive and aversive behavioral responses. By testing somatostatin-IRES-Cre and CRF-IRES-Cre transgenic lines, we found significant differences between strains on task acquisition and performance. Using chemogenetics, we demonstrate that CeA SOM+ neurons regulate motivation for reward, while manipulation of CeA CRF+ neurons had no effect on task performance. Future studies investigating the interaction between positive and negative motivation circuits should benefit from the use of this dual valence paradigm.

5.
Assessment ; 30(7): 2128-2145, 2023 10.
Article in English | MEDLINE | ID: mdl-36510659

ABSTRACT

The present study evaluated the validity of Minnesota Multiphasic Personality Inventory-3 (MMPI-3) scores among police (n = 1,294), correctional officer (n = 190), dispatcher (n = 205), and firefighter (n = 237) candidates using psychosocial history data collected with the Psychological History Questionnaire (PsyQ) at a private practice in the Northwestern United States. MMPI-3 scale elevations at T score cutoffs specified in the MMPI-3 User's Guide for the Public Safety Candidate Interpretive Reports (Corey & Ben-Porath, 2022) were examined. Consistent with previous research using the MMPI-2-RF, MMPI-3 T score means were lower and less variable in this public safety preemployment context relative to the normative sample. In addition, MMPI-3 scores were meaningfully associated with a number of aggregated scale scores derived from PsyQ data, particularly in the behavioral/externalizing domain. To address limited research on preemployment personality testing among female police candidates and the absence of research among nonpolice public safety occupations, Cohen's q was used to compare validity coefficients across male and female police candidates and across police and correctional officer, dispatcher, and firefighter candidates. Differences were minimal, with all statistically significant effects being small in magnitude, indicating the MMPI-3 correlates identified with police candidates replicate to other public safety positions.


Subject(s)
Correlation of Data , Firefighters , MMPI , Personnel Selection , Police , Surveys and Questionnaires , Adult , Female , Humans , Male , Firefighters/psychology , Police/psychology , Reproducibility of Results , Self Report
6.
Psychol Serv ; 20(4): 889-898, 2023 Nov.
Article in English | MEDLINE | ID: mdl-35617235

ABSTRACT

Most states require that a police candidate's suitability be assessed through preemployment psychological evaluations. Given the psychological stress officers experience in the line of duty, it is possible that experienced candidates would produce scores indicating greater dysfunction on psychological testing relative to inexperienced candidates. No known research has investigated whether police candidates produce different preemployment test scores across experience levels. The present study sought to address this gap in the literature and offer data to guide evaluators' interpretation of test scores for candidates with prior law enforcement (LE) experience. We used a sample of 400 police candidates (18.5% women) evaluated for positions at several LE agencies for whom Minnesota Multiphasic Personality Inventory-3 (MMPI-3) scores were available. Results showed no practically meaningful differences when comparing MMPI-3 scores of candidates with no prior experience, less than 5 years of experience, and 5 or more years of experience. We also compared frequencies at which the three groups elevated MMPI-3 scales at cutoffs specified in Assessing Police and Other Public Safety Personnel Using the MMPI-3: A Practical Guide (Corey & Ben-Porath, 2022) and found minimal differences. Together, these findings indicate that MMPI-3 scores can be interpreted consistently with published guidelines regardless of a candidate's prior LE experience. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Subject(s)
Law Enforcement , MMPI , Humans , Female , Male , Police/psychology , Reproducibility of Results
7.
Psychol Assess ; 34(1): 98-104, 2022 Jan.
Article in English | MEDLINE | ID: mdl-34843280

ABSTRACT

In this study, we explore the effects of in-person versus remote administration and in-person versus remote proctoring on scores on the Minnesota Multiphasic Personality Inventory-2 Restructured Form (MMPI-2-RF) in the context of police candidate preemployment evaluations. To this end, we compare data gathered from candidates who completed the test under standard, in-person conditions with data from candidates who completed the test remotely with the Q-global Remote On-Screen Assessment (ROSA) system, using either in-person or remote proctoring. We find that the standard group (n = 3,311), remote administration/in-person proctoring group (ROSA-IPP; n = 108), and remote administration/remote proctoring group (ROSA-RP; n = 90) all produce very similar distributions of scores, with group differences in means and standard deviations no greater than two T-score points per scale. Examination of the correlations between MMPI-2-RF externalizing scale scores and a set of relevant extra-test criteria for the ROSA-IPP and ROSA-RP groups reveals little difference between groups and suggests patterns of convergent and discriminant validity similar to those observed in studies of the MMPI-2-RF under standard administration conditions. Taken together, these findings provide evidence that the MMPI-2-RF's psychometric properties in police candidate preemployment evaluations are equivalent regardless of whether the test is administered in-person or remotely and whether proctoring is conducted in-person or remotely. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Subject(s)
MMPI , Police , Humans , Personnel Selection , Psychometrics , Reproducibility of Results
8.
Front Psychol ; 12: 805186, 2021.
Article in English | MEDLINE | ID: mdl-35153926

ABSTRACT

Music training is associated with enhanced executive function but little is known about the extent to which harmonic aspects of musical training are associated with components of executive function. In the current study, an array of cognitive tests associated with one or more components of executive function, was administered to young adult musicians and non-musicians. To investigate how harmonic aspects of musical training relate to executive function, a test of the ability to compose a four-part harmony was developed and administered to musicians. We tested the working hypothesis that musicians would outperform non-musicians on measures of executive function, and that among musicians, the ability to harmonize would correlate positively with measures of executive function. Results indicate that musicians outperformed non-musicians on the Tower of London task, a measure of planning and problem-solving. Group differences were not detected on tasks more selective for inhibitory control, conflict resolution, or working memory. Among musicians, scores on the harmony assessment were positively correlated with performance of the Tower of London task. Taken together, the current results support a strong relationship between musicianship and planning and problem solving abilities, and indicate that the ability to harmonize is associated with components of executive function contributing to planning and problem solving.

9.
Assessment ; 28(1): 295-309, 2021 01.
Article in English | MEDLINE | ID: mdl-31718241

ABSTRACT

A well-validated test of normal personality functioning is necessary in preemployment evaluations of candidates for public safety positions. In this study, we evaluated the construct validity and predictive validity of one such measure, the Multidimensional Personality Questionnaire (MPQ), in a large sample of candidates for law enforcement positions. We examined associations between MPQ scale scores and biographical data, clinician suitability ratings on the 10 established California Commission on Peace Officer and Standards and Training (POST) psychological screening dimensions, and (for a subsample) posthire performance outcome data. MPQ scores generally demonstrated a conceptually expected pattern of associations with criterion variables, supporting their construct validity. Scores related to negative emotionality were particularly salient predictors of a range of POST-10 suitability ratings. Scales assessing aspects of positive emotionality, impulsivity, as well as absorption, emerged as the best predictors of posthire performance problems.


Subject(s)
Personality Disorders , Police , Humans , Mass Screening , Personality , Personality Inventory , Surveys and Questionnaires
10.
Psychol Assess ; 30(12): 1691-1702, 2018 Dec.
Article in English | MEDLINE | ID: mdl-29888947

ABSTRACT

Potential externalizing tendencies have long been a focus of research in police candidates. Early studies often reported positive correlations between Minnesota Multiphasic Personality Inventory (MMPI) externalizing scales and problem behaviors in law enforcement officers. However, more recent investigations reveal mixed findings, with some showing either no significant correlations between externalizing measures and police performance problems or negative associations. In the current study, we examined associations between MMPI-2 Restructured Form (MMPI-2-RF) externalizing scale scores and personal history information (biodata) in a large sample (n = 1,226) of police officer candidates and observed expected positive correlations between them. Next, we examined associations between MMPI-2-RF externalizing scale scores and biodata and posthire performance measures in a subset of officers who were judged to be psychologically qualified, were subsequently hired, and for whom posthire performance records were available. We hypothesized that recently observed negative correlations would be replicated, and that this could be attributed to overcontrolled behavior, as reflected in low externalizing scale scores. Our findings were consistent with expectations. Finally, we found that, by and large, MMPI-2-RF scores and biodata augmented one another in the prediction of poor performance outcomes due to overcontrolled behavior among hired police officer recruits. Implications for considering overcontrolled behavior as a potential risk factor when evaluating police officer candidates are discussed. (PsycINFO Database Record (c) 2018 APA, all rights reserved).


Subject(s)
MMPI/statistics & numerical data , Personality Disorders/diagnosis , Personality Disorders/psychology , Personnel Selection/methods , Police/psychology , Problem Behavior/psychology , Adult , Female , Humans , Male , Police/statistics & numerical data , Risk
11.
Physiol Behav ; 165: 69-76, 2016 10 15.
Article in English | MEDLINE | ID: mdl-27378508

ABSTRACT

Primary motor networks are known to be involved in the control of voluntary oral movements as well as the modulation of pharyngeal movements during experimentally controlled single swallows performed on command. The role of these networks in the more typical task of sequential swallowing remains unexplored. This study evaluated the hypothesis that experimental disruption of motor cortical activation would reduce the rate and regularity of repeatedly performed volitional or volitionally initiated motor tasks controlled by corticospinal (finger tapping) and corticobulbar (eyebrow movement, jaw opening, volitional sequential swallowing) motor systems, but would not influence a more reflexive corticobulbar task (reflexive sequential swallowing to pharyngeal water infusion). This premise was investigated in 24 healthy participants using two techniques: a dual task paradigm and a transcranial magnetic stimulation paradigm. Disruption effects were quantified by changes in rate and regularity of performance for each tested motor task. In summary, volitional motor tasks controlled by corticospinal motor networks (finger tapping) are more susceptible to behavioural and neurophysiological disruption than tasks controlled by cortiobulbar motor networks containing a reflexive component (both volitional and experimentally initiated consecutive swallowing). Purely volitional motor tasks controlled by the corticobulbar motor system (eyebrow raising or jaw opening) were affected in similar ways as the volitional corticospinal motor tasks. In summary, tasks involving sequential pharyngeal swallowing - whether volitionally or experimentally initiated - are largely robust against disruption of primary cortical motor networks, supporting a key role of medullary CPGs in the motor control of sequential pharyngeal swallowing.


Subject(s)
Deglutition/physiology , Motor Activity/physiology , Motor Cortex/physiology , Pharynx/physiology , Electromyography , Eyebrows/physiology , Female , Fingers/physiology , Humans , Jaw/physiology , Male , Manometry , Neural Pathways/physiology , Reflex/physiology , Transcranial Magnetic Stimulation , Volition/physiology , Young Adult
12.
Assessment ; 23(2): 173-90, 2016 Apr.
Article in English | MEDLINE | ID: mdl-25848124

ABSTRACT

The purpose of the current study was to identify Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF) correlates of police officer integrity violations and other problem behaviors in an archival database with original MMPI item responses and collateral information regarding integrity violations obtained for 417 male officers. In Study 1, we estimated MMPI-2-RF scores from the MMPI item pool (which includes approximately 80% of the MMPI-2-RF items) in a normative sample, a psychiatric inpatient sample, and a police officer sample, and conducted analyses that demonstrated the comparability of estimated and full scale scores for 41 of the 51 MMPI-2-RF scales. In Study 2, we correlated estimated MMPI-2-RF scores with information about subsequent integrity violations and problem behaviors from the integrity violation data set. Several meaningful associations were obtained, predominately with scales from the emotional, thought, and behavioral dysfunction domains of the MMPI-2-RF. Application of a correction for range restriction yielded substantially improved validity estimates. Finally, we calculated relative risk ratios for the statistically significant findings using cutoffs lower than 65T, which is traditionally used to identify clinically significant elevations, and found several meaningful relative risk ratios.


Subject(s)
Ethics, Professional , MMPI/statistics & numerical data , Personality Assessment/statistics & numerical data , Personnel Selection/statistics & numerical data , Police/ethics , Police/psychology , Psychometrics/statistics & numerical data , Adult , Employee Discipline/statistics & numerical data , Female , Humans , Male , Mass Screening/statistics & numerical data , Middle Aged , Odds Ratio , Reference Values , Reproducibility of Results , Safety
13.
J Pers Assess ; 97(4): 382-94, 2015.
Article in English | MEDLINE | ID: mdl-25588076

ABSTRACT

Minnesota Multiphasic Personality Inventory-2-Restructured Form scores for 145 male police officer candidates were compared with supervisor ratings of field performance and problem behaviors during their initial probationary period. Results indicated that the officers produced meaningfully lower and less variant substantive scale scores compared to the general population. After applying a statistical correction for range restriction, substantive scale scores from all domains assessed by the inventory demonstrated moderate to large correlations with performance criteria. The practical significance of these results was assessed with relative risk ratio analyses that examined the utility of specific cutoffs on scales demonstrating associations with performance criteria.


Subject(s)
Emotions , Mental Disorders/psychology , Personality Inventory/standards , Police/psychology , Adult , Hawaii/epidemiology , Humans , Male , Mental Disorders/diagnosis , Mental Disorders/epidemiology , Middle Aged , Personality Disorders/diagnosis , Psychometrics , Reproducibility of Results , Risk , Young Adult
14.
Assessment ; 22(4): 411-28, 2015 Aug.
Article in English | MEDLINE | ID: mdl-25169624

ABSTRACT

We examined associations between prehire Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF) scores and posthire performance ratings for a sample of 131 male police officers. Substantive scale scores in this sample were meaningfully lower than those obtained by the test's normative sample and substantially range restricted, but scores were consistent with those produced by members of the police candidate comparison group (Corey & Ben-Porath). After applying a statistical correction for range restriction, we found several associations between MMPI-2-RF substantive scale scores and supervisor ratings of job-related performance. Findings for scales from the emotional dysfunction and interpersonal functioning domains of the test were particularly strong. For example, scales assessing low positive emotions and social avoidance were associated with several criteria that may be affected by lack of engagement with one's environment and other people, including problems with routine task performance, decision making, assertiveness, conscientiousness, and social competence. Implications of these findings for assessment science and practice are discussed.


Subject(s)
MMPI , Personnel Selection/methods , Police/psychology , Forecasting , Humans , Male
15.
Psychol Assess ; 27(1): 125-37, 2015 Mar.
Article in English | MEDLINE | ID: mdl-25383586

ABSTRACT

The current study examined the predictive validity of Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF; Ben-Porath & Tellegen, 2008/2011) scores in police officer screenings. We utilized a sample of 712 police officer candidates (82.6% male) from 2 Midwestern police departments. The sample included 426 hired officers, most of whom had supervisor ratings of problem behaviors and human resource records of civilian complaints. With the full sample, we calculated zero-order correlations between MMPI-2-RF scale scores and scale scores from the California Psychological Inventory (Gough, 1956) and Inwald Personality Inventory (Inwald, 2006) by gender. In the hired sample, we correlated MMPI-2-RF scale scores with the outcome data for males only, owing to the relatively small number of hired women. Several scales demonstrated meaningful correlations with the criteria, particularly in the thought dysfunction and behavioral/externalizing dysfunction domains. After applying a correction for range restriction, the correlation coefficient magnitudes were generally in the moderate to large range. The practical implications of these findings were explored by means of risk ratio analyses, which indicated that officers who produced elevations at cutscores lower than the traditionally used 65 T-score level were as much as 10 times more likely than those scoring below the cutoff to exhibit problem behaviors. Overall, the results supported the validity of the MMPI-2-RF in this setting. Implications and limitations of this study are discussed.


Subject(s)
MMPI/statistics & numerical data , Police/psychology , Problem Behavior/psychology , Psychometrics/statistics & numerical data , Self Report , Adult , Female , Humans , Male , Mass Screening , Odds Ratio , Personnel Selection , Predictive Value of Tests
16.
Assessment ; 22(1): 116-32, 2015 Feb.
Article in English | MEDLINE | ID: mdl-24875465

ABSTRACT

The purpose of this study was to investigate the predictive validity of the Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF) in a sample of law enforcement officers. MMPI-2-RF scores were collected from preemployment psychological evaluations of 136 male police officers, and supervisor ratings of performance and problem behavior were subsequently obtained during the initial probationary period. The sample produced meaningfully lower and less variant substantive scale scores than the general population and the MMPI-2-RF Police Candidate comparison group, which significantly affected effect sizes for the zero-order correlations. After applying a correction for range restriction, MMPI-2-RF substantive scales demonstrated moderate to strong associations with criteria, particularly in the Emotional Dysfunction and Interpersonal Functioning domains. Relative risk ratio analyses showed that cutoffs of 45T and 50T maintained reasonable selection ratios because of the exceptionally low scores in this sample and were associated with significantly increased risk for problematic behavior. These results provide support for the predictive validity of the MMPI-2-RF substantive scales in this setting. Implications of these findings and limitations of these results are discussed.


Subject(s)
MMPI/statistics & numerical data , MMPI/standards , Mental Disorders/diagnosis , Police , Humans , Male , Mass Screening , Mental Disorders/psychology , Oregon , Police/statistics & numerical data , Psychometrics , Risk Assessment/methods
17.
Physiol Behav ; 140: 132-8, 2015 Mar 01.
Article in English | MEDLINE | ID: mdl-25527200

ABSTRACT

PURPOSE: The aim of this observational study was to identify biomechanical differences, as measured by pharyngeal manometric pressure patterns, between discrete and continuous water swallowing, as well as volitionally initiated and reflexive swallowing. METHODS: Using pharyngeal manometry, swallowing-related pressures from 24 young healthy individuals were recorded at three locations: upper pharynx, mid-pharynx and upper oesophageal sphincter (UES) during four swallowing conditions: discrete saliva swallowing, discrete 10ml water swallowing, volitional continuous water swallowing, and reflexive continuous water swallowing. Measures of peak pressure and pressure duration at each level were compared across conditions using repeated-measures analysis of variance. RESULTS: UES nadir pressure during saliva swallowing was lower than during water swallowing conditions (p<0.05). In addition, nadir pressure during discrete 10ml water swallowing was lower than during reflexive and volitional continuous water swallowing conditions (p<0.05). Saliva swallowing produced longer pressure duration than water swallowing conditions at the upper pharynx (p<0.05). Saliva swallowing produced pressure of greater duration than reflexive continuous water swallowing at mid-pharynx (p<0.05). Further, discrete 10ml water swallowing produced longer UES opening duration and longer pharyngeal pressure generation (p<0.05) than reflexive continuous water swallowing or saliva swallowing. CONCLUSION: Pressure generation differs between swallowing types and bolus types at the level of the UES in particular. These physiological differences between swallowing and bolus types may support clinical decisions for individuals with impaired swallowing.


Subject(s)
Deglutition/physiology , Esophageal Sphincter, Upper/physiology , Pharynx/physiology , Reflex/physiology , Adolescent , Adult , Female , Healthy Volunteers , Humans , Male , Manometry , Pressure , Random Allocation , Reproducibility of Results , Water , Young Adult
18.
Brain Lang ; 126(2): 141-50, 2013 Aug.
Article in English | MEDLINE | ID: mdl-23712191

ABSTRACT

The SpeechEasy is an electronic device designed to alleviate stuttering by manipulating auditory feedback via time delays and frequency shifts. Device settings (control, default, custom), ear-placement (left, right), speaking task, and cognitive variables were examined in people who stutter (PWS) (n=14) compared to controls (n=10). Among the PWS there was a significantly greater reduction in stuttering (compared to baseline) with custom device settings compared to the non-altered feedback (control) condition. Stuttering was reduced the most during reading, followed by narrative and conversation. For the conversation task, stuttering was reduced more when the device was worn in the left ear. Those individuals with a more severe stuttering rate at baseline had a greater benefit from the use of the device compared to individuals with less severe stuttering. Our results support the view that overt stuttering is associated with defective speech-language monitoring that can be influenced by manipulating auditory feedback.


Subject(s)
Feedback, Sensory , Speech Therapy/instrumentation , Stuttering/therapy , Adult , Humans , Male , Middle Aged , Young Adult
19.
Dev Neuropsychol ; 37(5): 434-52, 2012.
Article in English | MEDLINE | ID: mdl-22799762

ABSTRACT

The counterclockwise brain torque, defined as a larger right prefrontal and left parietal-occipital lobe, is a consistent brain asymmetry. Reduced or reversed lobar asymmetries are markers of atypical cerebral laterality and have been found in adults who stutter. It was hypothesized that atypical brain torque would be more common in children who stutter. Magnetic resonance imaging-based morphology measures were completed in boys who stutter (n = 14) and controls (n = 14), ages 8-13. The controls had the expected brain torque configurations whereas the boys who stutter were atypical. These results support the hypothesis that developmental stuttering is associated with atypical prefrontal and parietal-occipital lobe asymmetries.


Subject(s)
Brain/pathology , Functional Laterality/physiology , Stuttering/pathology , Adolescent , Brain Mapping , Child , Humans , Intelligence , Language , Magnetic Resonance Imaging , Male , Neuropsychological Tests
20.
J Fam Psychol ; 24(4): 439-48, 2010 Aug.
Article in English | MEDLINE | ID: mdl-20731490

ABSTRACT

This study tested a theoretical model of the interrelations among controlling parenting, negative cognitive styles, children's anxiety, and race/ethnicity. The model suggests that, in general, cognitive style mediates the relation between maternal control and child anxiety but that the set of associations may differ as a function of ethnicity. African American (n = 235), Latin American (n = 56), and European American (n = 136) children completed measures of their anxiety, cognitive schemas reflecting impaired autonomy/performance and disconnection/rejection domains, and maternal control. Results indicated that a disconnection/rejection negative cognitive style mediated the effect of perceived maternal control on childhood anxiety only for the European American group. Maternal control was associated with the impaired autonomy/performance cognitive style for each of the three ethnic groups and with a disconnection/rejection cognitive style only for the European American and Latin American groups. Maternal control had an indirect effect on anxiety through the disconnection/rejection cognitive style for the Latin American group. The results are discussed in terms of how the model presented extends current theories of anxiety problems to African American and Latin American children by noting that significant cultural variations may exist in how parenting practices and cognitive styles relate to children's anxiety levels.


Subject(s)
Anxiety/psychology , Cognition , Models, Psychological , Mother-Child Relations , Adolescent , Black or African American/psychology , Anxiety/etiology , Child , Cross-Cultural Comparison , Ethnicity/psychology , Female , Hispanic or Latino/psychology , Humans , Mothers/psychology , Psychiatric Status Rating Scales , Regression Analysis , Surveys and Questionnaires , White People/psychology
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