Arne D. Ekstrom

This study compares learning of temporal intervals and spatial line segments with feedback, finding similar learning trajectories but differences in accuracy and feedback benefits.

This paper develops a closed-loop model of rotational navigation that explains how heading estimates are transformed into motor commands, showing that prediction errors drive corrective movements.

This study finds that older adults show different egocentric pointing variability in virtual reality tasks involving illusory path configurations compared to young adults.

This study investigates age-related differences in spatial memory and finds that older adults show reduced fMRI BOLD but preserved viewpoint-specific scene representations, suggesting a general difficulty with scene processing rather than a selective deficit in allocentric processing.

The paper investigates spatial memory distortions across different environments and time scales, finding systematic non-Euclidean patterns that support the cognitive graph hypothesis over the cognitive map hypothesis.

This study shows that eye movements during memory retrieval predict both retrieval success and the precision of the memory content.

This study shows that cognitive training in navigation or verbal memory does not change brain structure but alters functional network connectivity.

The paper investigates the relationship between fMRI BOLD signals in the left angular gyrus and hippocampus and memory precision during spatial memory tasks.

This study shows that low-frequency hippocampal oscillations during navigation and mental simulation share overlapping patterns, suggesting a broader memory-related role than a specific navigation function.

This study uses fMRI to investigate neural correlates of memory retrieval success and precision, finding a precision effect in the left angular gyrus and no retrieval success effect there.

This study shows that age differences in spatial memory are reduced when tested in a naturalistic virtual reality environment compared to a desktop-based one.

This study examines age-related changes in neural representations of spatial environments using fMRI, finding both age-dependent and independent factors affecting spatial memory performance.

The paper investigates whether spatial navigation involves parallel or serial processing of self-motion and landmark cues using EEG oscillations during virtual navigation.

This study investigates how humans integrate visual and body-based cues for heading estimation, finding a hybrid strategy where cues are combined for small mismatches and compete for large ones.

This study investigates how frontal midline theta and occipital alpha oscillations encode spatial distances and temporal durations using virtual reality and EEG.

This study finds that fornix microstructure correlates with spatial learning in a virtual Morris Water Maze task in humans.

The paper uses fMRI to show that CA1 and CA3 subfields of the human hippocampus differentially support episodic context retrieval during memory recollection.

This paper reviews findings on hippocampal involvement in navigation and memory, arguing that space and time serve as a scaffold for organizing experiences, while the hippocampus can incorporate additional dimensions when relevant.