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The relation of neuroticism to physiological and behavioral stress responses induced by auditory startle
Umeå universitet, Samhällsvetenskapliga fakulteten, Institutionen för psykologi.ORCID-id: 0000-0001-8009-5289
Engineering Psychology, Department of Health, Learning and Technology, Luleå University of Technology, Luleå, Sweden.
Umeå universitet, Samhällsvetenskapliga fakulteten, Institutionen för psykologi.ORCID-id: 0000-0001-5026-4934
Umeå universitet, Samhällsvetenskapliga fakulteten, Institutionen för psykologi.ORCID-id: 0000-0002-0536-2890
2022 (Engelska)Ingår i: Brain and Behavior, E-ISSN 2162-3279, Vol. 12, nr 5, artikel-id e2554Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Introduction: The negative cognitive effects of the startle response are not yet fully understood. Ecological observations in the aviation field indicate risk for severe outcomes in complex or pressured situations, while sparse previous research suggests milder negative effects on simple cognitive tasks. Neuroticism is proposed as a factor related to the level of negative effects following startle.

Methods: This study examined the effects of startle on performance in a choice reaction time task and analyzed relations between performance, neuroticism, and physiological stress.

Results: Our results indicate that reaction time directly following startle was not affected, but reaction time in subsequent trials was significantly slower. Neuroticism and physiological stress were both unrelated to this performance effect.

Discussion: We argue that higher complexity/demand tasks are necessary to complement the research on base cognitive functioning in relation to startle. If neuroticism is related to startle effects, this is more likely to be found in these higher demand situations.

Ort, förlag, år, upplaga, sidor
John Wiley & Sons, 2022. Vol. 12, nr 5, artikel-id e2554
Nyckelord [en]
cognition, neuroticism, reaction time, startle, stress
Nationell ämneskategori
Tillämpad psykologi Neurovetenskaper
Forskningsämne
psykologi
Identifikatorer
URN: urn:nbn:se:umu:diva-193977DOI: 10.1002/brb3.2554ISI: 000780133000001PubMedID: 35403836Scopus ID: 2-s2.0-85127977134OAI: oai:DiVA.org:umu-193977DiVA, id: diva2:1655425
Forskningsfinansiär
Knut och Alice Wallenbergs Stiftelse, KAW 2014.0205Tillgänglig från: 2022-05-02 Skapad: 2022-05-02 Senast uppdaterad: 2025-02-25Bibliografiskt granskad
Ingår i avhandling
1. Understanding military pilot selection: insights from cognitive, personality and experimental studies in Sweden
Öppna denna publikation i ny flik eller fönster >>Understanding military pilot selection: insights from cognitive, personality and experimental studies in Sweden
2025 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Alternativ titel[sv]
Militärt piloturval : insikter från kognitiva, personlighetsbaserade, och experimentella studier
Abstract [en]

This thesis investigates the critical issue of military pilot selection. To understand and optimizeselection, much research has been conducted on factors predicting educational outcomes. Whileassessment testing remains central to selection and understanding pilots, studying abilityrequirements for pilot in modern-day educational and professional settings can help make sure thatour understanding is up to date. This thesis includes both approaches through the two distinct butinterconnected measures of (1) successful completion of Swedish military pilot education, and (2)the ability to perform effectively as a professional military pilot. By adopting this holistic approachand focusing on the historically underexamined Swedish military pilot education context, this workprovides unique insights into selection criteria.Studies I and II were conducted based on a data registry of assessment tests provided by theSwedish Armed Forces and examined the role of common predictors such as personality andcognition in completing the Swedish military pilot education. Using a qualitative, interview-basedapproach, Study III examined instead what qualities that active military pilot cadets themselvesperceive as required for their profession. In a stress experiment in a laboratory setting, Study IVbegun examinations on whether a unique type of stress that can occur in flight, startle, coulddeserve attention during selection.It was found through Studies I and II that personality traits, as assessed by specialist psychologists,are associated with success in the Swedish military pilot education. In particular being energetic,professionally motivated, studious and having leadership potential. In addition, interview-basedsuitability judgements by senior pilots appear the strongest predictor of success in the Swedishsystem, while typically observed cognitive predictors did not appear related to success. Study IIIinformed about professional demands for pilots and found through thematic analysis that Swedishpilot cadets value being a team player, having drive, being stress tolerant and being in good shape,in some overlap with Studies I and II. Startling events, carried out in a controlled laboratoryenvironment in study IV, did negatively affect basic human performance – this was unrelated toindividual personality and stress levels however, providing a first indication about this professionalability requirement for pilots.Taken together, the thesis findings provide valuable insights for military pilot selection. A keytakeaway is the importance of personality factors in predicting educational success within theSwedish system. Historically, personality has been considered less predictive than cognitive abilityin pilot selection. The lack of predictive validity for traditionally emphasized cognitive measuresmay be attributed to a restriction of range, likely due to Swedens highly rigorous selection process.In this system, most candidates have demonstrated strong cognitive aptitude before enteringtraining, reducing variability in those measures and maybe allowing for a shifting of focus topersonality traits. The personality traits found significant for education have conceptual overlapwith previous aviation research profiles based in the Five-Factor Model, and overlap with theprofessional demands identified by pilot cadets in study III. This highlights the potential importanceof these variables, the requirement for further research.

Ort, förlag, år, upplaga, sidor
Umeå: Umeå University, 2025. s. 57
Nyckelord
psychology, selection, aviation, military aviation, pilot, cognition, personality, education completion
Nationell ämneskategori
Psykologi
Forskningsämne
psykologi
Identifikatorer
urn:nbn:se:umu:diva-235908 (URN)978-91-8070-636-0 (ISBN)978-91-8070-637-7 (ISBN)
Disputation
2025-03-21, HUM.D.220 Humanisthuset, Umeå, 09:00 (Engelska)
Opponent
Handledare
Tillgänglig från: 2025-02-28 Skapad: 2025-02-25 Senast uppdaterad: 2025-02-27Bibliografiskt granskad

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Sehlström, MalcolmClaeson, Anna-SaraNyström, Markus B. T.

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