2,166 results match your criteria: "Melbourne School of Psychological Sciences[Affiliation]"

Clinical features of obsessive-compulsive disorder among individuals who experience health-related obsessive-compulsive symptoms.

J Affect Disord

January 2025

Obsessive, Compulsive, and Anxiety Spectrum Research Program, Institute of Psychiatry, Federal University of Rio de Janeiro (UFRJ), Brazil; D'Or Institute for Research and Education, Rio de Janeiro, Brazil.

Article Synopsis
  • Health-related obsessive-compulsive symptoms (OCS) involve concerns about illness or appearance, and the study aimed to see how these symptoms are linked to different clinical characteristics in people with OCD.
  • The research involved 1001 individuals with OCD, examining their demographics, symptom severity, clinical course, and mental health comorbidities using questionnaires.
  • Results showed that those with health-related OCS had heightened severity in certain OCD symptoms like contamination and hoarding, less insight into their symptoms, and a higher occurrence of anxiety-related disorders, but overall severity and clinical course were similar between groups.
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Mild symptoms matter: Results from a prospective, longitudinal study on the relationship between symptoms, lymphedema and health-related outcomes post-gynecological cancer.

Gynecol Oncol

December 2024

School of Health Sciences and Social Work, Griffith University, Nathan, Queensland, Australia; Cancer Council Queensland, Fortitude Valley, Queensland, Australia.

Objectives: To describe lower-limb symptoms pre- through to 2-years post-surgery following newly diagnosed gynecological cancer; to explore relationships between lower-limb symptoms, lower-limb lymphedema, body image, quality of life, anxiety and depression; and to determine whether lower-limb symptoms predict lower-limb lymphedema.

Methods: Fourteen lower-limb symptoms, lymphedema, body image, anxiety, depression, and quality of life were prospectively collected in 408 women with gynecological cancer pre-surgery, and at 6-, 12-, and 24-months post-surgery. Point prevalence and cumulative incidence were calculated for symptoms.

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Despite lip service about replication being a cornerstone of science, replications have historically received little real estate in the published literature. Following psychology's recent replication crisis, we assessed the prevalence of one type of replication contribution: direct replication articles-articles where a direct or close replication of a previously published study is one of the main contributions of the article. This prevalence provides one indicator of how much the field values and incentivizes this type of self-correction.

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Obstructive sleep apnea (OSA) is a chronic sleep-related breathing disorder that is highly prevalent in individuals with posttraumatic stress disorder (PTSD). The reason for this high prevalence remains unclear. We hypothesized that breathing instability, one of the key contributors to OSA, may be altered in PTSD and predispose OSA.

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The impact of others' choices on decision-making is influenced by individual preferences. However, the specific roles of individual preferences in social decision-making remain unclear. In this study, we examine the contributions of risk and loss preferences as well as social influence in decision-making under uncertainty using a gambling task.

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Background: Sugar-sweetened beverages (SSBs) account for a significant proportion of sugar in the diet of children and are directly associated with obesity in this group. While there have been many studies on adolescent SSB consumption, few studies have examined the predictors of SSB consumption in primary-school-aged children. The aim of this study was to understand the degree to which a child's consumption across a range of beverages is influenced by their own attitudes and by their parents' attitudes and parents' consumption behaviours.

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Public awareness of mental illness: Mental health literacy or concept creep?

Australas Psychiatry

October 2024

Melbourne School of Psychological Sciences, University of Melbourne, Parkville, VIC, Australia.

Rising awareness of mental illness has increased the public's mental health literacy, with positive implications for help-seeking and destigmatization. We argue that it has also enlarged the public's concept of mental illness. People have become better at recognizing the presence of mental illness but may have become worse at recognizing its absence.

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Distinct functional connectivity phenotypes in preadolescent children with binge eating disorder by BMI status.

Obesity (Silver Spring)

November 2024

Department of Psychiatry & Behavioral Sciences, Keck School of Medicine of USC, University of Southern California, Los Angeles, California, USA.

Objective: The neurobiological mechanisms underpinning binge eating disorder (BED) in children remain largely unclear, as the alterations that have been identified to date may be attributable to BED, obesity, or compound effects. This study aimed to delineate functional connectivity (FC) patterns in inhibitory control and reward networks in preadolescent children with and without BED from the Adolescent Brain Cognitive Development (ABCD) Study according to BMI.

Methods: Resting-state FC was examined in the inhibitory control network by using seeds in the dorsolateral prefrontal cortex, the anterior cingulate cortex, and the posterior cingulate cortex, whereas the reward network included seeds in the orbitofrontal cortex, nucleus accumbens, and amygdala.

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Article Synopsis
  • Visual illusions are systematic misperceptions that reveal how our brains construct visual experiences, with the "frame effect" being a notable example where moving frames mislead our perception of an object's position.
  • A newly identified illusion, the "split stimulus effect," shows that symmetrical motion of overlaid frames can cause observers to perceive two instances of a single stimulus, as evidenced by participants sometimes reporting two dots when only one was shown.
  • This study also explored factors influencing the illusion, such as frame speed and spatial attention, and demonstrated that individuals can hold conflicting perceptual predictions about the same object, shedding light on the underlying mechanisms of visual perception.
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Article Synopsis
  • People with neurodegenerative disorders often experience delays and misdiagnosis, making it important to find effective diagnostic tools.
  • This study compared levels of neurofilament light chain (NfL) in blood and cerebrospinal fluid (CSF) among individuals with neurodegenerative disorders (ND), primary psychiatric disorders (PPD), and healthy controls, showing that plasma NfL was significantly elevated in ND.
  • The research indicates that plasma NfL has strong diagnostic performance, especially in younger individuals, suggesting it could serve as a useful screening test to differentiate between ND and PPD in clinical settings.
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How stepping out helped us tune in: finding space and time to as an early career researcher.

NPJ Biol Timing Sleep

October 2024

Department of Ophthalmology and Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore.

The transition from postdoc to junior faculty is exciting and uniquely challenging. On one hand, it allows for increased creative freedom and the opportunity to grow into an independent scientist. On the other hand, it comes with increasing administrative responsibilities, feelings of isolation, and high pressure to perform.

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Background: Emotion processing (EP) is impaired in individuals with psychosis and associated with social functioning; however, it is unclear how symptoms fit into this relationship. The aim of this systematic review and meta-analysis was to examine interrelationships between EP, symptoms, and social functioning, test whether different symptom domains mediate the relationship between EP and social functioning, and examine the moderating effects of illness stage and EP task type.

Study Design: MEDLINE, Embase, and PsycINFO databases were searched for studies that included individuals with psychosis and reported correlations between EP, symptom domains (positive, negative, depressive, and disorganization), and social functioning.

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Twin Data Support a Sensitive Period for Singing Ability.

Twin Res Hum Genet

August 2024

Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, Victoria, Australia.

As with many other musical traits, the social environment is a key influence on the development of singing ability. While the familial singing environment is likely to be formative, its role relative to other environmental influences such as training is unclear. We used structural equation modeling to test relationships among demographic characteristics, familial environmental variables (early and current singing with family), vocal training, and singing ability in a large, previously documented sample of Australian twins ( = 1163).

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The flash-lag effect (FLE) occurs when a flash's position seems to be delayed relative to a continuously moving object, even though both are physically aligned. Although several studies have demonstrated that reduced attention increases FLE magnitude, the precise mechanism underlying these attention-dependent effects remains elusive. In this study, we investigated the influence of visual attention on the FLE by manipulating the level of attention allocated to multiple stimuli moving simultaneously in different locations.

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High activity of upper airway dilator muscles is thought to be critical in preventing sleep-related upper airway collapse. To date, most of the research regarding upper airway dilator muscles has focused on the genioglossus muscle, which protrudes the tongue and opens the retroglossal airway. However, collapse commonly occurs in the retropalatal region.

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Dementia is a burgeoning global problem. Novel magnetic resonance imaging (MRI) metrics beyond volumetry may bring new insight and aid clinical trial evaluation of interventions early in the Alzheimer's disease course to complement existing imaging and clinical metrics. To determine whether: (i) normalized regional sodium-MRI values (Na-SI) are better predictors of neurocognitive status than volumetry (ii) cerebral amyloid PET status improves modelling.

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Chronopsychiatry.

Br J Psychiatry

December 2024

School of Physiology, Pharmacology & Neuroscience, University of Bristol, Bristol, UK.

Article Synopsis
  • Chronopsychiatry focuses on the connection between circadian rhythms and mental health, highlighting their clinical importance.
  • This approach encourages understanding mental disorders through time-sensitive frameworks, instead of just static models.
  • It promotes chronotherapeutic strategies, which are treatments that take into account the timing of interventions for better mental health outcomes.
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Background: Concerns have recently been raised about risks to the fetus resulting from paternal exposure to antiseizure medications (ASMs). To address these concerns, we conducted a systematic review of the literature to assess neurodevelopmental and anatomical outcomes in offspring born to fathers taking ASMs at the time of conception.

Methods: Electronic searches of MEDLINE, PsycINFO, and Embase were conducted to identify human studies published in English that reported on outcomes, comprising neurodevelopmental disorders, major congenital malformations, small-for-gestational age or low birth weight, in offspring of fathers taking ASMs at conception.

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Introduction: Immune effector cell-associated neurotoxicity syndrome (ICANS) is a common side-effect of chimeric antigen receptor T-cell (CAR-T) therapy, with symptoms ranging from mild to occasionally life-threatening. The neurological, cognitive, psychiatric and psychosocial sequelae of ICANS are diverse and not well defined, posing a challenge for diagnosis and management. The recovery trajectory of the syndrome is uncertain.

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Objectives: Trauma-related conditions, such as post-traumatic stress disorder, are associated with high rates of impairment and distress. Evidence-based interventions for many trauma-related conditions exert robust effects on their primary outcomes. However, logistical, financial, geographic and stigma-related barriers to accessing these interventions exist.

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Patterns of nicotine pouch use among young Australians.

Drug Alcohol Depend

November 2024

Melbourne Centre for Behaviour Change, Melbourne School of Psychological Sciences, The University of Melbourne, Grattan Street, Parkville, 3010, Australia. Electronic address:

Background: Despite increasing interest in the use of nicotine pouches in Australia - where retail sale of the products is illegal - research exploring patterns of pouch use and reasons for use is lacking. Accordingly, this study explored young Australians' experiences with nicotine pouches.

Methods: An online survey was administered to 1598 Australians aged 16-39 years (53 % women).

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The concept of ultra-high risk for psychosis (UHR) has been at the forefront of psychiatric research for several decades, with the ultimate goal of preventing the onset of psychotic disorder in high-risk individuals. Orygen (Melbourne, Australia) has led a range of observational and intervention studies in this clinical population. These datasets have now been integrated into the UHR 1000+ cohort, consisting of a sample of 1,245 UHR individuals with a follow-up period ranging from 1 to 16.

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Background: Miscarriage is a common medical occurrence which can be associated with significant psychological distress. Patients and partners are frequently disappointed by aspects of their care, especially with regard to emotional support. Although most published studies investigated the experiences of patients and partners in emergency departments (EDs) of public hospitals, miscarriage is also frequently diagnosed in non-emergency settings, such as during sonography or antenatal appointments, and approximately 25% of Australian women receive maternity care in private hospitals.

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