Neuronal 'Ensemble' Recording and the Search for the Cell Assembly: A Personal History.

This contribution is part of the special issue on the Hippocampus focused on personal histories of advances in knowledge on the hippocampus and related structures. An account is offered of the author's role in the development of neural ensemble recording: stereo recording (stereotrodes, tetrodes) and the use of this approach to search for evidence of Hebb's "cell assemblies" and "phase sequences", the holy grail of the neuroscience of learning and memory.

Social support, spirituality, and executive functions: An event-related potential (ERP) study of neural mechanisms of cultural protective factors in American Indians (AIs).

A resilience-based approach in American Indian (AI) communities focuses on inherent sociocultural assets that may act as protective resilience buffers linked to mitigated mental health risks (e.g., deep-rooted spiritual, robust social support networks).

Non-maternal nest building behaviours in mice predict bilateral dorsal hippocampal lesion extent.

Lesions and pharmacological inactivation of the hippocampus have long been important tools for assessing the critical role of the hippocampus in learning and memory. Such studies often require a substantial investment of time and resources and, so, a tool for estimating lesion extent and screening animals prior to histological verification would be of considerable utility. Mice with bilateral hippocampal lesions have previously been observed to be deficient at nest building.

Psilocybin reduces functional correlation and the encoding of spatial information by neurons in mouse retrosplenial cortex.

Psychedelic drugs have profound effects on perception, cognition and mood. How psychedelics affect neural signaling to produce these effects remains poorly understood. We investigated the effect of the classic psychedelic psilocybin on neural activity patterns and spatial encoding in the retrosplenial cortex of head-fixed mice navigating on a treadmill.

Bridging Neuroscience and AI: Environmental Enrichment as a Model for Forward Knowledge Transfer.

Continual learning (CL) refers to an agent's capability to learn from a continuous stream of data and transfer knowledge without forgetting old information. One crucial aspect of CL is forward transfer, i.e.