Postacute Sequelae of COVID-19 Infection and Development of a Physiatry-Led Recovery Clinic

To the Editor: The coronavirus 2019 disease (COVID-19) pandemic has caused immeasurable loss and suffering for people worldwide. Medical advances have helped save the lives of many COVID-19 patients; however, countless survivors of this disease are now struggling with its after effects. This letter will describe the current state of knowledge regarding persistent symptoms after the initial COVID-19 infection and discuss the central role of physiatry in the care of patients with prolonged symptoms

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The success of fMRI places constraints on the nature of the neural code. The fact that researchers can infer similarities between neural representations, despite fMRI's limitations, implies that certain neural coding schemes are more likely than others. For fMRI to succeed given its low temporal and spatial resolution, the neural code must be smooth at the voxel and functional level such that similar stimuli engender similar internal representations. Through proof and simulation, we determine which coding schemes are plausible given both fMRI's successes and its limitations in measuring neural activity. Deep neural network approaches, which have been forwarded as computational accounts of the ventral stream, are consistent with the success of fMRI, though functional smoothness breaks down in the later network layers. These results have implications for the nature of the neural code and ventral stream, as well as what can be successfully investigated with fMRI

Hippocampus at 25

The journal Hippocampus has passed the milestone of 25 years of publications on the topic of a highly studied brain structure, and its closely associated brain areas. In a recent celebration of this event, a Boston memory group invited 16 speakers to address the question of progress in understanding the hippocampus that has been achieved. Here we present a summary of these talks organized as progress on four main themes: (1) Understanding the hippocampus in terms of its interactions with multiple cortical areas within the medial temporal lobe memory system, (2) understanding the relationship between memory and spatial information processing functions of the hippocampal region, (3) understanding the role of temporal organization in spatial and memory processing by the hippocampus, and (4) understanding how the hippocampus integrates related events into networks of memories

Semantic influences on episodic memory distortions

Stimuli, data and analysis cod

Semantic influences on episodic memory distortions

Stimuli, data and analysis cod

Schematic memories develop quickly, but are not expressed unless necessary

Raw data, analysis, and manuscript for a behavioral experiment examining the formation and expression of schematic memories