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Vol. 36. Issue 2.
Pages 93-97 (March - April 2025)
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Vol. 36. Issue 2.
Pages 93-97 (March - April 2025)
Clinical Research
Lateralization in visualization among neurosurgeons
Lateralización en visualización entre neurocirujanos
Hrvoje Barića,b,
Corresponding author
hbaric@kbc-zagreb.hr

Corresponding author.
, Sara Komljenovićc, Helena Ljuljd
a Department of Neurosurgery, Clinical Hospital Center Zagreb, Zagreb, Croatia
b Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland
c Institute for Emergency Medicine of Primosko-Goranska County, Rijeka, Croatia
d Zagreb University School of Medicine, Zagreb, Croatia
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Tables (3)
Table 1. Subject characteristics.
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Table 2. Comparison of dominant laterality in visualization and medical literature.
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Table 3. Laterality in images in the neurosurgical literature.
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Additional material (1)
Abstract
Background

Handedness is an epiphenomenon of brain lateralization which has been researched in the context of surgical performance, yet the same does not hold true for lateralization at a more fundamental level. We aimed to investigate whether neurosurgeons are biased in visualizing and depicting anatomy and pathology.

Methods

This was a two part study consisting of an online survey and image analysis. An online questionnaire was used to collect basic sociodemographic data and prompt subjects to visualize surgical approaches and pathological entities and report on the side of the visualized topics. Prominent neurosurgical literature was screened for depictions of the same entities and approaches and the depicted side was noted.

Results

There were 49 responses, most from Croatia (n = 26), men (n = 38), right-handed (n = 42), of average age 37 years, and with 9 years of neurosurgical experience. Ambidexterity was more prevalent than in the general population. The respondents imagined the right side more commonly in all cranial-related questions, and the left side in spine-related questions. Images in neurosurgical literature showed correspondingly biased laterality.

Conclusion

There is a significant bias among neurosurgeons in laterality in processing topographical information on anatomy and pathology. Research is warranted to investigate the causes and real life implications of this phenomenon.

Keywords:
Anatomy
Handedness
Lateralization
Visualization
Surgery
Resumen
Antecedentes

La lateralidad es un epifenómeno de la dominancia cerebral que se ha investigado en el contexto del ejercicio quirúrgico, pero no en un nivel más elemental. Nuestro objetivo fue investigar si los neurocirujanos están condicionados cuando visualizan y representan la anatomía y las distintas patologías que la afectan.

Métodos

Estudio en dos fases que consistió, primero, en una encuesta on-line seguido de un análisis de imágenes. Se utilizó un cuestionario para recopilar datos sociodemográficos básicos y pedir a los sujetos que visualizaran abordajes quirúrgicos y entidades patológicas e informaran sobre los elementos visualizados. Además, se analizó literatura neuroquirúrgica destacada en busca de representaciones de las mismas entidades y abordajes y se anotó el lado representado.

Resultados

Hubo 49 participantes, en su mayoría de Croacia (n = 26), hombres (n = 38), diestros (n = 42), con una edad promedio de 37 años y con 9 años de experiencia neuroquirúrgica. La proporción de ambidiestros fue mayor que en la población general. Los encuestados imaginaron el lado derecho con mayor frecuencia en todas las preguntas relacionadas con el cráneo y el lado izquierdo en las preguntas relacionadas con la columna. Las imágenes en la literatura neuroquirúrgica mostraron una lateralidad igualmente sesgada.

Conclusión

Existe un sesgo significativo entre los neurocirujanos en la lateralidad del procesamiento de información topográfica sobre anatomía y patología. Se precisan estudios más extensivos para investigar las causas y las implicaciones en la vida real de este fenómeno.

Palabras clave:
Anatomía
Dominancia
Lateralidad
Visualización
Cirugía

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