Mohamed Abdelhack

Investigating the Causal Relationship between Neuroticism and Alzheimer's Disease Using Mendelian Randomization and the Mediating Role of Modifiable Risk Factors

This study uses Mendelian randomization and mediation analysis to show that neuroticism's link to Alzheimer's disease is mediated by modifiable factors like depression, hypertension, and alcohol consumption, rather than being causal.

Neurostructural and cognitive signatures of novel polygenic risk scores for molecular brain aging

The paper develops polygenic risk scores for molecular brain aging and links them to cortical thickness and cognitive performance in older adults.

Sleep-insomnia superposition: opposing brain signatures of sleep in task-based and resting-state conditions

The paper examines correlations between task and resting-state brain signatures of sleep, cognition, and depression in over 30,000 individuals, revealing opposing neural patterns associated with insomnia and depression.

Reconstructing visual illusory experiences from human brain activity

This study reconstructs visual illusory experiences from brain activity using a decoding technique and deep neural networks, showing that reconstructions match illusory percepts.

Dopaminergic neurons modulate locomotion in Caenorhabditis elegans

This study investigates how dopamine modulates locomotion in C. elegans by examining the mechanosensory properties of dopaminergic neurons.

Conflicting Bottom-up and Top-down Signals during Misrecognition of Visual Objects

The paper investigates how top-down and bottom-up signals interact during visual object recognition, finding that top-down signals have limited impact on lower-level processing but stronger influence on higher cognitive areas.

Sharpening of hierarchical visual feature representations of blurred images

This study uses DNN representations to show neural activity shifts toward non-blurred images when viewing blurred images, suggesting top-down sharpening of visual representations.