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Kognitiv och motorisk funktion – en jämförelse mellan ADHD kombinerad form, ADHD ouppmärksam form och kontroller

Rovira, Anna LU and Johanisson, Anna (2025) PSPR14 20251
Department of Psychology
Abstract
Attention Deficit Hyperactivity Disorder (ADHD) has long been associated with impairments in executive functions and attention. More recent research has suggested that cerebellar structures are also affected in ADHD and that the cerebellum is involved in more cognitive processes than previously believed. The current state of research is limited and fragmented regarding how cognitive performance appears—and potentially differs—across various ADHD subgroups. The master thesis was conducted at Lund University as part of a larger research project. This study, using a quantitative cross-sectional design, aimed to investigate whether two ADHD subgroups: combined type (ADHD-C), inattentive type (ADHD-I), as well as controls, performed differently... (More)
Attention Deficit Hyperactivity Disorder (ADHD) has long been associated with impairments in executive functions and attention. More recent research has suggested that cerebellar structures are also affected in ADHD and that the cerebellum is involved in more cognitive processes than previously believed. The current state of research is limited and fragmented regarding how cognitive performance appears—and potentially differs—across various ADHD subgroups. The master thesis was conducted at Lund University as part of a larger research project. This study, using a quantitative cross-sectional design, aimed to investigate whether two ADHD subgroups: combined type (ADHD-C), inattentive type (ADHD-I), as well as controls, performed differently on cognitive and motor tests in an adult population. The sample consisted of 145 participants (ADHD-C: n=29; ADHD-I: n=23; Controls: n=93). The results showed that none of the tests in the study were able to differentiate test performance between the two ADHD subgroups. However, both patient groups performed worse than controls on tests measuring the executive functions: verbal inhibition and cognitive flexibility, as well as cerebellar functions: visuospatial adaptation following motor learning (one variable), and motor speed (p<0.001). Furthermore, the patient groups also performed worse than controls in terms of cognitive processing speed and visuospatial ability (p≤0.001). In contrast, performance on tests measuring visuospatial perception, as well as cerebellar functions such as the ability to synchronize with and maintain rhythm, and two variables of visuospatial adaptation following motor learning, did not differ between the three groups (p = 0.058–0.677).

Keywords: neuropsychology, adult ADHD, cognition, sensorimotor integration, cerebellum. (Less)
Abstract (Swedish)
Attention Deficit Hyperactivity Disorder (ADHD) har länge förknippats med
påverkan på exekutiva funktioner och uppmärksamhet. Ett komplement i senare
forskning är att även cerebellära strukturer är påverkade vid ADHD och att
cerebellum är involverad i fler kognitiva processer än vad man tidigare trott. Det
aktuella forskningsläget är begränsat och splittrat när det kommer till hur
kognitiv prestation ser ut – och eventuellt skiljer sig åt – mellan olika subgrupper
av ADHD. Examensarbetet genomfördes vid Lunds universitet som en del av ett
större forskningsprojekt. Examensarbetet använde en kvantitativ
tvärsnittsdesign för att undersöka huruvida två ADHD-subgrupper: kombinerad
form (ADHD-C), ouppmärksam form (ADHD-I) samt... (More)
Attention Deficit Hyperactivity Disorder (ADHD) har länge förknippats med
påverkan på exekutiva funktioner och uppmärksamhet. Ett komplement i senare
forskning är att även cerebellära strukturer är påverkade vid ADHD och att
cerebellum är involverad i fler kognitiva processer än vad man tidigare trott. Det
aktuella forskningsläget är begränsat och splittrat när det kommer till hur
kognitiv prestation ser ut – och eventuellt skiljer sig åt – mellan olika subgrupper
av ADHD. Examensarbetet genomfördes vid Lunds universitet som en del av ett
större forskningsprojekt. Examensarbetet använde en kvantitativ
tvärsnittsdesign för att undersöka huruvida två ADHD-subgrupper: kombinerad
form (ADHD-C), ouppmärksam form (ADHD-I) samt kontroller, presterade
olika på kognitiva och motoriska tester i en vuxen population. Urvalet bestod av
145 deltagare (ADHD-C: n=29; ADHD-I: n=23; kontroller: n=93). Resultaten
visade att inga av testen i studien kunde skilja mellan prestationerna hos de två
ADHD-subgrupperna. De två patientgrupperna presterade sämre än kontroller
på tester som mätte de exekutiva funktionerna: verbal inhibition och kognitiv
flexibilitet, samt de cerebellära funktionerna: visuospatial anpassningsförmåga
efter motorisk inlärning (en variabel), samt motorisk hastighet (p<0,001).
Vidare presterade patientgrupperna sämre än kontroller gällande kognitiv
bearbetningshastighet och visuospatial förmåga (p≤0,001). Prestationer på tester
som mätte visuospatial perception, samt de cerebellära funktionerna: förmåga
att synkronisera med och bibehålla rytm, samt två variabler av visuospatial
anpassningsförmåga efter motorisk inlärning kunde däremot inte skilja mellan
de tre grupperna (p=0,058–0,677). (Less)
Please use this url to cite or link to this publication:
author
Rovira, Anna LU and Johanisson, Anna
supervisor
organization
course
PSPR14 20251
year
type
H3 - Professional qualifications (4 Years - )
subject
keywords
neuropsykologi, vuxen ADHD, kognition, sensimotorintegrering, cerebellum, neuropsychology, adult ADHD, cognition, sensorimotor integration
language
Swedish
id
9194297
date added to LUP
2025-06-12 08:43:50
date last changed
2025-06-12 08:43:50
@misc{9194297,
  abstract     = {{Attention Deficit Hyperactivity Disorder (ADHD) has long been associated with impairments in executive functions and attention. More recent research has suggested that cerebellar structures are also affected in ADHD and that the cerebellum is involved in more cognitive processes than previously believed. The current state of research is limited and fragmented regarding how cognitive performance appears—and potentially differs—across various ADHD subgroups. The master thesis was conducted at Lund University as part of a larger research project. This study, using a quantitative cross-sectional design, aimed to investigate whether two ADHD subgroups: combined type (ADHD-C), inattentive type (ADHD-I), as well as controls, performed differently on cognitive and motor tests in an adult population. The sample consisted of 145 participants (ADHD-C: n=29; ADHD-I: n=23; Controls: n=93). The results showed that none of the tests in the study were able to differentiate test performance between the two ADHD subgroups. However, both patient groups performed worse than controls on tests measuring the executive functions: verbal inhibition and cognitive flexibility, as well as cerebellar functions: visuospatial adaptation following motor learning (one variable), and motor speed (p<0.001). Furthermore, the patient groups also performed worse than controls in terms of cognitive processing speed and visuospatial ability (p≤0.001). In contrast, performance on tests measuring visuospatial perception, as well as cerebellar functions such as the ability to synchronize with and maintain rhythm, and two variables of visuospatial adaptation following motor learning, did not differ between the three groups (p = 0.058–0.677).

Keywords: neuropsychology, adult ADHD, cognition, sensorimotor integration, cerebellum.}},
  author       = {{Rovira, Anna and Johanisson, Anna}},
  language     = {{swe}},
  note         = {{Student Paper}},
  title        = {{Kognitiv och motorisk funktion – en jämförelse mellan ADHD kombinerad form, ADHD ouppmärksam form och kontroller}},
  year         = {{2025}},
}