Open research questions in Stress Responses and Cortisol
235 unresolved questions extracted from the limitations and future-work sections of 1,216 Stress Responses and Cortisol papers in our library. Each links back to the study that raised it.
What the literature leaves open
Missing data due to technical failures or refusal to wear electrodes, - Missingness in the SM group was not at random, - Small sample size, - Limited generalizability due to specific population and setting
Silent Stress: Psychophysiological Arousal During Verbal and Nonverbal Tasks in Children with Selective Mutism · 2026 · DOIInvestigate the relationship between chronic stress and speaking behaviour in children with SM, - Examine the effectiveness of stress-reducing interventions for children with SM, - Explore the role of family factors, migration, life events, or neurodevelopmental challenges in contributing to feelings of anxiety or insecurity in children with SM
Silent Stress: Psychophysiological Arousal During Verbal and Nonverbal Tasks in Children with Selective Mutism · 2026 · DOIFuture studies should investigate whether and how patterns of cortisol reactivity across development differentiate risk for later CU traits - Future studies should examine how these associations may vary as a function of early adversity exposure
Predictive Relations Between Early Adversity, Nonlinear Trajectories of Hypothalamic–Pituitary–Adrenal Axis Functioning, and Later Callous-Unemotional Traits · 2026 · DOIThe study had a small sample size of 36 teachers, - The study only included teachers from the canton of Bern, - Exclusion criteria limited the generalizability of the results
Teachers’ acute cardiovascular response to observed classroom disruptions and resulting chronic endocrine stress. Analysis of dynamic effects with global assessments for state space grids · 2026 · DOIFurther research is needed to explore the dynamic time development of teachers' cardiovascular adaptiveness to classroom disruptions, - The novel GSSG method could be applied to other fields, - Longitudinal studies could examine the long-term effects of classroom disruptions on teachers' physiological stress response
Teachers’ acute cardiovascular response to observed classroom disruptions and resulting chronic endocrine stress. Analysis of dynamic effects with global assessments for state space grids · 2026 · DOIThe biological mechanisms underlying the emergence and persistence of LC-NE dysfunction due to chronic stress are not well understood. The interactions between cellular and axonal mechanisms in the development and persistence of chronic stress-related LC-NE dysfunction remain incompletely understood. There is a need to understand how chronic stress affects the LC-NE system and its impact on brain function and behavior.
Chronic stress-induced LC-NE dysfunction: cellular and axonal mechanisms underlying impaired neuromodulation · 2026 · DOIPopulation studies have yielded inconsistent results due to variability in stressor type and duration, interindividual differences in stress coping, and the subjective nature of stress exposure assessment - The existing evidence linking AL to cancer risk predominantly derives from cross-sectional designs or focuses on limited cancer sites
Further studies are needed to investigate the relationship between AL and cancer risk in different populations - Research on the joint effect of AL and personality traits on cancer risk is warranted
The study had a limited sample size of 291 subjects. The study only included healthy individuals. The study did not control for all potential confounding variables.
Linking brain structure to stress reactivity: cingulate surface area predicts acute cortisol responses · 2026 · DOIThe role of brain structure in acute cortisol responses to psychosocial stress remains underexplored. Previous studies primarily focused on selected limbic regions and functional measures.
Linking brain structure to stress reactivity: cingulate surface area predicts acute cortisol responses · 2026 · DOIThe exact mechanisms underlying brain aging remain uncertain. The ontological basis of the changes in brain aging in patients with major depressive disorder is not well understood. There is a need to explore the relationship between brain structural changes in MDD-related brain aging and neurotransmitter expression levels and transcriptomics.
Accelerated brain aging in patients with major depressive disorder and its neurogenetic basis: evidence from neurotransmitters and gene expression profiles · 2025 · DOIconducted during periods of social distancing due to the COVID-19 pandemic, - limited to people at-risk for depression due to high levels of loneliness, - no long-term follow-up
Effects of 28-day simvastatin administration on emotional processing, reward learning, working memory, and salivary cortisol in healthy participants at-risk for depression: OxSTEP, an online experimental medicine trial · 2025 · DOIfurther investigation of the effects of simvastatin on emotional processing, reward learning, and working memory, - exploration of the potential benefits and risks of statin treatment in different populations
Effects of 28-day simvastatin administration on emotional processing, reward learning, working memory, and salivary cortisol in healthy participants at-risk for depression: OxSTEP, an online experimental medicine trial · 2025 · DOIexamining the neural mechanisms underlying the link between neuroticism and dementia risk, - investigating targeted strategies for early dementia prevention, - exploring the role of other health conditions in mediating the associations between neuroticism and brain structure
Association between neuroticism and brain-wide structural outcomes: Mediation by vascular and mental conditions · 2025 · DOIThe neural mechanisms underlying the link between neuroticism and increased dementia risk are unclear. Previous studies have not examined the associations between neuroticism and specific brain structures in detail. There is a need to identify the health conditions that mediate the associations between neuroticism and brain structure.
Association between neuroticism and brain-wide structural outcomes: Mediation by vascular and mental conditions · 2025 · DOIThe exact mechanisms by which chronic stress contributes to autoimmune disease are not fully understood. There is a need to elucidate the complex relationships between the HPA axis, cortisol signaling, and immune regulation. Further research is required to develop effective therapeutic interventions targeting the HPA axis and cortisol dysregulation.
Assessing cognitive flexibility in infants and older adults is challenging due to limitations in task design and participant engagement. The impact of lifestyle factors on cognitive flexibility is complex and requires further investigation. Developing effective interventions to improve cognitive flexibility across the lifespan is a significant challenge.
The development of cognitive flexibility and its implications for mental health disorders · 2024 · DOIEmbedding CF-oriented pedagogy alongside team-based approaches that enhance creativity and inventiveness into school programs and assessments may enhance adolescents' CF and their readiness for the future - Addressing underlying factors influencing lifestyle choices like socioeconomic disparities, work-life balance, and social ties requires broader societal change
The development of cognitive flexibility and its implications for mental health disorders · 2024 · DOIThe influence of acute stress responses on our ability to cope with chronic stress remains unclear. The relationship between neural alterations in acute stress and coping with chronic stress is unclear. There is a need to better characterize the brain changes involved in acute stress reactivity and recovery, as well as to identify how these processes may relate to chronic stress.
Brain network dynamics following induced acute stress: a neural marker of psychological vulnerability to real-life chronic stress · 2025 · DOIopportunities for therapeutic interventions, including stress management, lifestyle modification, and neuroendocrine-targeted treatments
The relationship between early adversity and callous-unemotional traits is not well understood. Prior research on neuroendocrine correlates of callous-unemotional traits in older children highlights patterns of low basal cortisol or unclear associations.
Predictive Relations Between Early Adversity, Nonlinear Trajectories of Hypothalamic–Pituitary–Adrenal Axis Functioning, and Later Callous-Unemotional Traits · 2026 · DOIChaperonins seem to play a role in opioid-induced neural plasticity, yet their contribution to OUD-related changes in the dorsal striatum (DS) remains poorly understood.
Adolescent stress avoidance influences cue-induced heroin seeking and chaperonin gene expression in the dorsal striatum of adult female rats · 2025 · DOINeurons involved in these processes are often identified by the expression of immediate-early genes (IEGs), but the extent to which the patterns of this expression correspond between IEGs has not been well characterized.
Immediate-early genes Arc and c-Fos show divergent brain-wide expression following contextual fear conditioning · 2025 · DOIDespite extensive research on each stress type individually, the transition and interaction between them remain underexplored.
Bridging acute and chronic stress effects on inflammation: protocol for a mixed-methods intensive longitudinal study · 2025 · DOIWhile pharmacological treatments are available, the long-term biological underpinnings – especially those linked to adverse childhood experiences (ACEs), remain incompletely understood.
From trauma to depression: structural, synaptic, epigenetic, and molecular pathways linking early stress to lifelong vulnerability · 2025 · DOI
Most-cited papers in Stress Responses and Cortisol
- Influence of Life Stress on Depression: Moderation by a Polymorphism in the 5-HTT Gene · Science · 2003 · 6,157 citations
- Protective and Damaging Effects of Stress Mediators · New England Journal of Medicine · 1998 · 5,020 citations
- The Concepts of Stress and Stress System Disorders · JAMA · 1992 · 4,703 citations
- The Stress Process · Journal of Health and Social Behavior · 1981 · 4,553 citations
- Acute Stressors and Cortisol Responses: A Theoretical Integration and Synthesis of Laboratory Research. · Psychological Bulletin · 2004 · 4,419 citations
- Stress, Adaptation, and Disease: Allostasis and Allostatic Load · Annals of the New York Academy of Sciences · 1998 · 3,978 citations
- Stress and the Individual · Archives of Internal Medicine · 1993 · 3,920 citations
- Maternal Care, Hippocampal Glucocorticoid Receptors, and Hypothalamic-Pituitary-Adrenal Responses to Stress · Science · 1997 · 2,514 citations
- Psychological Stress and the Human Immune System: A Meta-Analytic Study of 30 Years of Inquiry. · Psychological Bulletin · 2004 · 2,453 citations
- Hypothalamic–pituitary–adrenal axis, neuroendocrine factors and stress · Journal of Psychosomatic Research · 2002 · 2,114 citations
Most recent work
- Socioeconomic Status and Subdivisions of the Amygdala and Hippocampus in Children and Adolescents · bioRxiv · 2026
- Allostatic load, personality traits, and cancer risk: A prospective cohort study · Psychological Medicine · 2026
- Epigenetic Basis of Stress-Induced Central Nervous System Disorders: Therapeutic Approaches · Biology · 2026
- Transcriptional Profiling of the Cortico-Accumbal Pathway Reveals Sex-Specific Alterations Underlying Stress Susceptibility · Biological Psychiatry · 2026
- Investigating functional impairment as a mediator of the association between internalising symptoms and low wellbeing · Journal of Affective Disorders · 2026
- New model, old risks: sociodemographic bias and adversarial hallucinations vulnerability in GPT-5 · npj Digital Medicine · 2026
- Cardiorespiratory fitness is associated with lower anger and anxiety and higher emotional resilience · Acta Psychologica · 2026
- The effect of acute stress on executive function in children: Moderation by parasympathetic nervous system activity · Journal of Experimental Child Psychology · 2026
- Childhood dietary factors are associated with maternal characteristics and sex-specific changes in neuropsychological deficits: A criminological assessment · Journal of Criminal Justice · 2026
- Linking brain structure to stress reactivity: cingulate surface area predicts acute cortisol responses · Psychological Medicine · 2026
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