Katharina Voigt

Peripheral insulin resistance attenuates cerebral glucose metabolism and impairs working memory in healthy adults

The paper investigates how peripheral insulin resistance affects cerebral glucose metabolism and working memory in healthy adults, finding greater impacts in younger adults.

Metabolic connectivity in ageing.

This study examines metabolic connectivity in ageing using high temporal resolution PET, finding reduced connectivity and altered topology in older adults linked to worse cognitive performance.

Insulin resistance alters the coupling between cerebral blood flow and glucose metabolism in younger and older adults: Implications for neurovascular coupling

This study examines how insulin resistance and age affect cerebral blood flow and glucose metabolism coupling in adults, finding altered coupling patterns in insulin-resistant individuals.

The maternal brain is more flexible and responsive at rest: effective connectivity of the parental caregiving network in postpartum mothers

This study uses resting-state fMRI and spDCM to show that postpartum mothers have disinhibited brain connectivity in key regions, suggesting more flexible and responsive behavior in caregiving and cognition.

Multimodal, multiscale connectivity blueprints of the cerebral cortex

This paper integrates seven multimodal brain connectivity profiles to uncover universal organizational principles and maps them onto brain structure and function.

Identification of a stress-sensitive anorexigenic neurocircuit from medial prefrontal cortex to lateral hypothalamus.

The paper identifies a stress-sensitive anorexigenic pathway from the medial prefrontal cortex to the lateral hypothalamus in mice and shows its role in regulating food intake during stress.

Metabolic and functional connectivity provide unique and complementary insights into cognition-connectome relationships

This study investigates how hemodynamic and metabolic brain connectivity relate to cognitive function using simultaneous FDG-fPET/fMRI and partial least squares analyses, revealing distinct cognitive associations for each modality.

Hypothalamic effective connectivity at rest is associated with body weight and energy homeostasis

This study examines how body weight and energy homeostasis affect effective connectivity between hypothalamic regions using resting-state fMRI in humans.

Neural network modelling reveals changes in directional connectivity between cortical and hypothalamic regions in obesity

The paper uses neural network modeling to show increased top-down excitation from the insula to the hypothalamus and reduced prefrontal cortex excitation in obesity, regardless of hunger state.

Hard decisions shape the neural coding of preferences

This study shows that preferences change during decision-making, with neural activity and eye-tracking predicting these changes and their behavioral relevance at re-evaluation.