Browsing HV - Institutt for atferdsvitenskap by Author "Johansen, Espen Borgå"
Now showing items 1-7 of 7
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Behavioral changes following PCB 153 exposure in the Spontaneously Hypertensive rat - an animal model of Attention-Deficit/Hyperactivity disorder
Johansen, Espen Borgå; Fonnum, Frode; Lausund, Per; Walaas, S. Ivar; Bærland, Nora Elise; Wøien, Grete; Sagvolden, Terje (Behavioral and Brain Functions;10(1), Journal article; Peer reviewed, 2014-01-09)Background Attention-Deficit/Hyperactivity Disorder (ADHD) is a behavioral disorder affecting 3-5% of children. Although ADHD is highly heritable, environmental factors like exposure during early development to various ... -
Female rats release a trapped cagemate following shaping of the door opening response: Opening latency when the restrainer was baited with food, was empty, or contained a cagemate
Andersen, Danielle; Johansen, Espen Borgå (PLoS ONE;14 (10): e0223039, Journal article; Peer reviewed, 2019-09-13)Research on pro-social rat behaviour is growing within the fields of comparative psychology and social neuroscience. However, much work remains on mapping important variables influencing this behaviour, and there is even ... -
Marine omega-3 polyunsaturated fatty acids induce sex-specific changes in reinforcer-controlled behaviour and neurotransmitter metabolism in a spontaneously hypertensive rat model of ADHD
Dervola, Kine S; Roberg, Bjørg Å; Wøien, Grete; Bogen, Inger Lise; Sandvik, Torbjørn H; Sagvolden, Terje; Drevon, Christian A; Johansen, Espen Borgå; Walaas, Sven Ivar (Behavioral and Brain Functions;8(56), Academic article, 2012)Previous reports suggest that omega-3 (n-3) polyunsaturated fatty acids (PUFA) supplements may reduce ADHD-like behaviour. Our aim was to investigate potential effects of n-3 PUFA supplementation in an animal model of ... -
Patterns of motor activity in spontaneously hypertensive rats compared to Wistar Kyoto rats
Fasmer, Ole Bernt; Johansen, Espen Borgå (Peer reviewed; Journal article; Journal article, 2016-12-01)Background: Increased motor activity is a defining characteristic of patients with ADHD, and spontaneously hyper - tensive rats have been suggested to be an animal model of this disorder. In the present study, we ... -
Postnatal exposure to PCB 153 and PCB 180, but not to PCB 52, produces changes in measures of attention, activity level and impulsivity in outbred male Wistar Kyoto rats
Johansen, Espen Borgå; Knoff, Monica; Fonnum, Frode; Lausund, Per; Walaas, S. Ivar; Wøien, Grete; Sagvolden, Terje (Journal article; Peer reviewed; Journal article, 2011)Background: Polychlorinated biphenyls (PCBs) are a class of organic compounds that bioaccumulate due to their chemical stability and lipophilic properties. Humans are prenatally exposed via trans-placental transfer, ... -
Previous experience with delays affects delay discounting in animal model of ADHD
Sjøberg, Espen A.; Ottåsen, Hans Martin; Wilner, Raquel Gloria; Johansen, Espen Borgå (Peer reviewed; Journal article, 2023)Background ADHD is a disorder where a common symptom is impulsive behaviour, a broad term associated with making sub-optimal choices. One frequently used method to investigate impulsive behaviour is delay discounting, which ... -
Rat Models of ADHD
Sagvolden, Terje; Johansen, Espen Borgå (Current Topics in Behavioral Neurosciences;9, Chapter; Peer reviewed, 2011-04-13)