Erik G. Jönsson
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View article: Early versus adult onset of schizophrenia: an examination of premorbid and current IQ
Early versus adult onset of schizophrenia: an examination of premorbid and current IQ Open
EOS had lower current IQ than AOS, but did not differ in premorbid IQ, suggesting a larger decline from premorbid IQ levels. This could imply different neurodevelopmental processes underlying cognitive dysfunction related to age of onset i…
View article: Neuroanatomical Correlates of Negative Symptoms in Schizophrenia
Neuroanatomical Correlates of Negative Symptoms in Schizophrenia Open
Background Schizophrenia is characterized by widespread structural brain abnormalities, but associations between structural abnormalities and negative symptom severity are not well understood. Negative symptoms have been conceptualized in …
View article: Longitudinal trajectories of cortical folding in schizophrenia spectrum disorders: a 13-year follow-up study
Longitudinal trajectories of cortical folding in schizophrenia spectrum disorders: a 13-year follow-up study Open
Background and Hypothesis Altered cortical folding is a putative marker of neurodevelopmental disruption in schizophrenia spectrum disorders (SSD). Patients with SSD have been hypothesized to exhibit an accelerated decline in age-related c…
View article: Skogbyite, Zr(Mg<sub>2</sub>Mn<sup>3+</sup><sub>4</sub>)SiO<sub>12</sub>, a new zirconium mineral in the braunite group from Långban, Bergslagen, Sweden
Skogbyite, Zr(Mg<sub>2</sub>Mn<sup>3+</sup><sub>4</sub>)SiO<sub>12</sub>, a new zirconium mineral in the braunite group from Långban, Bergslagen, Sweden Open
Skogbyite, ideally Zr(Mg2Mn43+)SiO12, is a new mineral species (IMA 2023-085) within the braunite group, discovered in a complex metamorphic assemblage from the Långban Fe–Mn oxide deposit, Värmland County, Bergslagen ore province, Sweden.…
View article: Thalamic Nuclei Volumes Across Psychiatric and Neurological Disorders: A Multi-Site Magnetic Resonance Imaging Study
Thalamic Nuclei Volumes Across Psychiatric and Neurological Disorders: A Multi-Site Magnetic Resonance Imaging Study Open
The human thalamus is an integrative hub for multiple cortical and subcortical circuits involved in both sensory processing and higher cognitive functions. Group-level thalamic volume differences have been reported for multiple psychiatric…
View article: In Vitro Digestion of High‐Fat Commercial Dairy Products: Detailed Analysis of Lipid Classes
In Vitro Digestion of High‐Fat Commercial Dairy Products: Detailed Analysis of Lipid Classes Open
This study aimed to comprehensively analyze lipid classes after in vitro digestion of high‐fat commercial dairy products. The research focused on the fatty acid (FA) profiles of triacylglycerols, diacylglycerols, monoacylglycerols (MAG), f…
View article: Auditory MMN is associated with the volume of thalamic higher order nuclei in individuals with psychotic disorders and healthy controls
Auditory MMN is associated with the volume of thalamic higher order nuclei in individuals with psychotic disorders and healthy controls Open
The results demonstrate a positive association between MMN amplitude and volumes of thalamic association nuclei in patients with psychotic disorders and HC. These findings may suggest a modulatory role of the thalamus in prediction error s…
View article: The startle response and prepulse inhibition in psychosis and violence: A combined electromyography and electroencephalography study
The startle response and prepulse inhibition in psychosis and violence: A combined electromyography and electroencephalography study Open
There is a pressing need for biomarkers of violent behavior risk in psychosis. Previous research indicates that electrophysiological measures of automatic defensive reactions may have potential. The purpose of this study was to investigate…
View article: Sex differences in deep brain shape and asymmetry persist across schizophrenia and healthy individuals: A meta-analysis from the ENIGMA-Schizophrenia Working Group
Sex differences in deep brain shape and asymmetry persist across schizophrenia and healthy individuals: A meta-analysis from the ENIGMA-Schizophrenia Working Group Open
Background Schizophrenia (SCZ) is characterized by a disconnect from reality that manifests as various clinical and cognitive symptoms, and persistent neurobiological abnormalities. Sex-related differences in clinical presentation imply se…
View article: A synthesis of the REE-Fe-polymetallic mineral system of the REE-line, Bergslagen, Sweden: New mineralogical and textural-paragenetic constraints
A synthesis of the REE-Fe-polymetallic mineral system of the REE-line, Bergslagen, Sweden: New mineralogical and textural-paragenetic constraints Open
Rare earth elements (REE) have gained increasing significance for numerous technologies, particularly in today's rapidly expanding "green transition" applications such as wind generators and electric vehicle traction engines. Among the mor…
View article: Genomic analysis of intracranial and subcortical brain volumes yields polygenic scores accounting for variation across ancestries
Genomic analysis of intracranial and subcortical brain volumes yields polygenic scores accounting for variation across ancestries Open
Subcortical brain structures are involved in developmental, psychiatric and neurological disorders. We performed GWAS meta-analyses of intracranial and nine subcortical brain volumes (brainstem, caudate nucleus, putamen, hippocampus, globu…
View article: Assessing regional intracortical myelination in schizophrenia spectrum and bipolar disorders using the optimized T1w/T2w-ratio
Assessing regional intracortical myelination in schizophrenia spectrum and bipolar disorders using the optimized T1w/T2w-ratio Open
Background Dysmyelination could be part of the pathophysiology of schizophrenia spectrum (SCZ) and bipolar disorders (BPD), yet few studies have examined myelination of the cerebral cortex. The ratio of T1- and T2-weighted magnetic resonan…
View article: Introducing the akrochordite mineral group, with the new mineral vargite from the Långban Mn-Fe deposit, Filipstad, Värmland, Sweden
Introducing the akrochordite mineral group, with the new mineral vargite from the Långban Mn-Fe deposit, Filipstad, Värmland, Sweden Open
Vargite, ideally MnCu2Mn2(OH)4(H2O)4(AsO4)2 – named after the Swedish miner Erik Gustaf Varg (1886–1970), who collected the type specimen – was found in the Långban Fe-Mn deposit. It occurs in open cavities in a brecciated and later hydrot…
View article: Relationship between N100 amplitude and T1w/T2w-ratio in the auditory cortex in schizophrenia spectrum disorders
Relationship between N100 amplitude and T1w/T2w-ratio in the auditory cortex in schizophrenia spectrum disorders Open
Schizophrenia spectrum disorders (SCZspect) are associated with altered function in the auditory cortex (AC), indicated by reduced N100 amplitude of the auditory evoked potential (AEP). While the neural substrate behind reduced N100 amplit…
View article: Prescriptions of psychotropic and somatic medications among patients with severe mental disorders and healthy controls in a naturalistic study
Prescriptions of psychotropic and somatic medications among patients with severe mental disorders and healthy controls in a naturalistic study Open
Patients were using psychiatric medications, but also several types of somatic medications, more often than HC. Still, somatic medication use was mostly not higher than in the general population. The results indicate that HC had low use of…
View article: Current Auditory Hallucinations Are Not Associated With Specific White Matter Diffusion Alterations in Schizophrenia
Current Auditory Hallucinations Are Not Associated With Specific White Matter Diffusion Alterations in Schizophrenia Open
Background and Hypothesis Studies have linked auditory hallucinations (AH) in schizophrenia spectrum disorders (SCZ) to altered cerebral white matter microstructure within the language and auditory processing circuitry (LAPC). However, the…
View article: Mismatch negativity in schizophrenia spectrum and bipolar disorders: Group and sex differences and associations with symptom severity
Mismatch negativity in schizophrenia spectrum and bipolar disorders: Group and sex differences and associations with symptom severity Open
MMN was attenuated in SCZ and correlated with greater severity of psychotic symptoms and lower level of functioning. Our results may indicate sex-dependent differences of glutamatergic function in SCZ.
View article: Assessing regional intracortical myelination in schizophrenia spectrum and bipolar disorders using the optimized T1w/T2w-ratio
Assessing regional intracortical myelination in schizophrenia spectrum and bipolar disorders using the optimized T1w/T2w-ratio Open
Background Dysmyelination could be part of the pathophysiology of schizophrenia spectrum (SCZ) and bipolar disorders (BPD), yet few studies have examined myelination of the cerebral cortex. The ratio of T1- and T2-weighted magnetic resonan…
View article: Widespread alterations of diffusion tensor imaging metrics in patients with schizophrenia without current auditory hallucinations
Widespread alterations of diffusion tensor imaging metrics in patients with schizophrenia without current auditory hallucinations Open
Background Studies have linked auditory hallucinations (AH) in schizophrenia-spectrum disorders (SCZ) to altered cerebral white matter microstructure within the language and auditory processing circuitry (LAPC). However, the neuroanatomica…
View article: Large-scale analysis of structural brain asymmetries in schizophrenia via the ENIGMA consortium
Large-scale analysis of structural brain asymmetries in schizophrenia via the ENIGMA consortium Open
Left–right asymmetry is an important organizing feature of the healthy brain that may be altered in schizophrenia, but most studies have used relatively small samples and heterogeneous approaches, resulting in equivocal findings. We carrie…
View article: Auditory Cortex Thickness Is Associated With N100 Amplitude in Schizophrenia Spectrum Disorders
Auditory Cortex Thickness Is Associated With N100 Amplitude in Schizophrenia Spectrum Disorders Open
Background and Hypothesis The auditory cortex (AC) may play a central role in the pathophysiology of schizophrenia and auditory hallucinations (AH). Previous schizophrenia studies report thinner AC and impaired AC function, as indicated by…
View article: In vivo white matter microstructure in adolescents with early-onset psychosis: a multi-site mega-analysis
In vivo white matter microstructure in adolescents with early-onset psychosis: a multi-site mega-analysis Open
Emerging evidence suggests brain white matter alterations in adolescents with early-onset psychosis (EOP; age of onset <18 years). However, as neuroimaging methods vary and sample sizes are modest, results remain inconclusive. Using harmon…