Prevalence Estimate for Adjustment Disorders in the South African Navy.

Introduction And Aim: Adjustment Disorder is among the most commonly diagnosed mental disorders in the armed forces, with a mean prevalence estimated at 7.4% across military populations. The prevalence in South African military populations is not known.

A retrospective review of the utility of chest X-rays in diving and submarine medical examinations.

Introduction: Performance of routine Chest X-rays (CXRs) in asymptomatic individuals to assess hyperbaric exposure risk is controversial. The radiation risk may overshadow the low yield in many settings. However, the yield may be higher in certain settings, such as tuberculosis-endemic countries.

Dispositional resilience predicts psychological adaptation of seafarers during and after maritime operations.

Background: Seafarers, whether on cargo, fishery, or naval ships, may be exposed to unique and unusual psychological demands related to the often isolated, confined, and extreme environments associated with ocean-going vessels. This necessitates optimal psychological adaptation to maintain individual well-being during the mission and afterwards. This study set out to explore whether psychometric measures could predict psychological adaptation of seafarers, specifically navy sailors, during and after maritime operations.

A Concise Occupational Mental Health Screening Tool for South African Workplaces.

Mental health in the workplace is becoming of ever greater importance. General occupational health surveillance programmes are already in widespread use, with established referral systems for treatment and rehabilitation, and the same mechanisms could be expanded to include mental health screening and intervention. This study aimed to develop a concise composite mental health screening tool, based on analysis of existing data, for application in routine occupational health surveillance in South Africa.

Mood responses to COVID-19: Implications for family practice in South Africa.

The effect of coronavirus disease 2019 (COVID-19) on the mood responses of individuals is an important indicator of how society is coping with the pandemic. Characterising mood responses in a South African sample could prepare clinicians for possible presentations of mental health concerns in general practice. This study described mood responses during COVID-19 Alert Level 1.

Common mental health conditions among navy divers: A brief report.

Introduction: A recent article reported on common mental health conditions among recreational scuba divers, and observed that the prevalence mirrored national population figures. This raised the question of the extent to which this might also be the case among professional divers. No data on commercial divers could be located; this paper presents the situation among navy divers.

Adult attention-deficit/hyperactivity disorder prevalence among commercial divers in South Africa.

Introduction: Adult attention-deficit/hyperactivity disorder (ADHD) is associated with increased chance of workplace accidents, psychiatric comorbidities, other risky behaviours and sophisticated psychopharmacological treatment. These factors all contribute to a potentially complex risk profile within the commercial diving context. In order to make informed decisions regarding ADHD and commercial diving, further description of this condition among commercial divers is required.

Associations Between Adverse Underwater Events and ADHD Diagnosis Among Military Divers.

Adult ADHD (A-ADHD) has been associated with an increased risk of accidents and workplace injuries. ADHD within professional diving may have major potential occupational health and safety implications, as accidents underwater may have severe consequences. The study investigated any association of increased risk for adverse underwater incidents with an ADHD diagnosis.

Diving, cannabis use, and techniques of neutralisation: exploring how divers rationalise cannabis use.

Background: Diving medicine literature often regards the use of cannabis as a potential contra-indicator for fitness to dive. With that said, there has been no empirical research done with cannabis-using divers to examine how they subjectively understand and construct the risks that their cannabis use may have on their diving. This study explored how cannabis-using divers rationalise the pejorative associations of cannabis use through rhetorical techniques of neutralisation (TON) that function to deny the risks that cannabis use may have on their diving.

Personality profiles of divers: integrating results across studies.

Background: There are numerous reports on diver personality, spanning across five decades, across national boundaries, and using a range of measures to describe diver profiles. However, the range of reports poses challenges to interpreting new studies, particularly when having to compare findings across generations, measurements, and national/cultural contexts. This paper aimed to review and integrate diver personality descriptions, drawing on the available studies that reported trait theory based data for naval and sport divers.

Personality and behavioural outcomes in diving: current status and recommendations for future research.

This paper provides a brief overview of the shift from studies describing the personality profiles of divers to studies exploring associations between personality variables and diving performance in terms of behavioural outcomes. The personality associations that were investigated include performance during training, panic proneness, diving injuries, susceptibility to inert gas narcosis, and the behaviour of tourist divers. The paper concludes with a number of suggested directions for further research on personality and diving that may provide tangible benefits in terms of both enhanced safety and improved performance underwater.

Psychological considerations in submarine escape training: brief overview and future directions.

The inability of a submarine to surface must rate as one of greatest risks to sailors in peacetime. To prepare for such emergencies, many navies provide training to master the procedures required to escape successfully from disabled submarines. This paper provides a brief overview of some of the psychological principles in simulated submarine escape training.

Diving under the influence: issues in researching personality and inert gas narcosis.

Background: This paper considers the relationship between measures of personality and mood states, and susceptibility to inert gas narcosis. It briefly reviews the topics of inert gas narcosis affecting personality, and personality affecting the susceptibility to inert gas narcosis. There appears to be is a theoretical argument for a possible relationship between measures of personality, mood states, and susceptibility to narcosis.

Talking about Relations: Factors Influencing the Production of Relational Descriptions.

In a production experiment (Experiment 1) and an acceptability rating one (Experiment 2), we assessed two factors, spatial position and salience, which may influence the production of relational descriptions (such as "the ball between the man and the drawer"). In Experiment 1, speakers were asked to refer unambiguously to a target object (a ball). In Experiment 1a, we addressed the role of spatial position, more specifically if speakers mention the entity positioned leftmost in the scene as (first) relatum.

Transient Expression of Secretory IgA In Planta is Optimal Using a Multi-Gene Vector and may be Further Enhanced by Improving Joining Chain Incorporation.

Secretory IgA (sIgA) is a crucial antibody in host defense at mucosal surfaces. It is a promising antibody isotype in a variety of therapeutic settings such as passive vaccination and treatment of inflammatory disorders. However, heterologous production of this heteromultimeric protein complex is still suboptimal.

Effect of a Faith-Based Education Program on Self-Assessed Physical, Mental and Spiritual (Religious) Health Parameters.

The aim of the study was to determine the effect of attending a faith-based education program (FBEP) on self-assessed physical, mental and spiritual health parameters. The study was designed as a prospective, observational, cohort study of individuals attending a 5-day FBEP. Out of 2650 sequential online registrants, those previously unexposed to the FBEP received automated invitations to complete 5 sequential Self-Assessment Questionnaire's (SAQ's) containing: (1) Duke University Religion Index (DUREL); (2) Negative Religious Coping (N-RCOPE); (3) Perceived Stress Scale (PSS); (4) Center for Epidemiology and Statistics-Depression Scale (CES-D); (5) Brief Illness Perception Questionnaire (BIPQ); and the (6) State Trait Anxiety Inventory (STAI).

Subjective Narcosis Assessment Scale: measuring the subjective experience of nitrogen narcosis.

Background: The interaction of subjective experiences and objective measures of neuropsychological performance during hyperbaric exposure has received less attention in the literature, in part due to the shortage of available and appropriately standardized measures.

Objective: This study aimed to describe the psychometric properties of a modified version of the Subjective High Assessment Scale when used in the hyperbaric context, by exploring internal reliability, factor structure, associations with psychological variables and simple cognitive delayed recall, and the effect of task focus on the recall of subjective experience.

Method: Seventy qualified divers completed dry hyperbaric chamber dives to 607.

Nitrogen narcosis and tactile shape memory in low visibility.

Objective: Commercial diving often occurs in low visibility, where divers are reliant on their tactile senses. This study examined the effect of nitrogen narcosis on tactile memory for shapes as well as the influence of psychological and biographical factors on this relationship.

Method: This crossover study tested 139 commercial divers in a dry hyperbaric chamber at 101.

The use of Spielberger's State-Trait Personality Inventory (trait anxiety subscale) with naval subaquatic specialists.

Objectives: Panic behavior poses a particular threat to the health and safety of subaquatic occupational specialists. Trait anxiety has previously been identified as a marker of panic behavior under water, and Spielberger's State-Trait Personality Inventory (trait anxiety subscale) has been previously used to measure trait anxiety among subaquatic specialists. Using archived data, the trait anxiety scores of subaquatic specialists were analyzed to meet 3 objectives: 1stly - to develop a trait anxiety profile of subaquatic specialists; 2ndly - to investigate the predictive value of trait anxiety measures upon entering an occupational field; and 3rdly - to establish the reliability of these scores over time.

Complex tactile performance in low visibility: the effect of nitrogen narcosis.

Background: In a task-environment where visibility has deteriorated, individuals rely heavily on tactile performance (perception and manipulation) to complete complex tasks. When this happens under hyperbaric conditions, factors like nitrogen narcosis could influence a person's ability to successfully complete such tasks.

Objective: To examine the effect of nitrogen narcosis on a complex neuropsychological task measuring tactile performance at a pressure of 608 kPa (6 atm abs), in the absence of visual access to the task.

Clinical utility of the brunel mood scale in screening for post-traumatic stress risk in a military population.

Measures of mood states and post-traumatic stress (PTS) symptoms are commonplace in many studies. However, the conventional application of these measures conjointly raises questions whether they actually correlate, and whether mood states have a meaningful role in predicting PTS symptoms. This study aimed to assess the degree to which the Brunel Mood Scale (BRUMS) and the Impact of Event Scale-Revised (IES-R) would be useful in detecting adverse psychological experiences (e.

Influence of item sequence on transient mood assessment.

The present study compared self-reported transient mood assessment using two different presentations of the sequence of mood scale items. A sample of 300 adults completed the standard Brunel Mood Scale and, after a distraction task, completed an experimental version composed of items grouped along the original subscales. A further 292 adults completed the scales in reverse order.

Assessing tactile perception: effects of different visual barriers on performance.

Blindfolding candidates when testing their tactile performance may increase their anxiety. This study examined whether different visual barriers would influence tactile performance on timed tasks. It was hypothesised that candidates using a blindfold would be more anxious, but that they would benefit by the potentially positive effects of arousal on performance and not differ from candidates using a screen to limit visual access to task material.

Mental health measures in predicting outcomes for the selection and training of navy divers.

Introduction: Two models have previously been enlisted to predict success in training using psychological markers. Both the Mental Health Model and Trait Anxiety Model have shown some success in predicting behaviours associated with arousal among student divers. This study investigated the potential of these two models to predict outcome in naval diving selection and training.