During pauses in exploration, ensembles of place cells in the rat hippocampus re-express firing sequences corresponding to recent spatial experience. Such "replay" co-occurs with ripple events: short-lasting (approximately 50-120 ms), high-frequency (approximately 200 Hz) oscillations that are associated with increased hippocampal-cortical communication. In previous studies, rats exploring smal...

Recordings of rat hippocampal place cells have provided information about how the hippocampus retrieves memory sequences. One line of evidence has to do with phase precession, a process organized by theta and gamma oscillations. This precession can be interpreted as the cued prediction of the sequence of upcoming positions. In support of this interpretation, experiments in two-dimensional envir...

The hippocampus is essential for spatial navigation, which may involve sequential learning. However, how the hippocampus encodes new sequences in familiar environments is unknown. To study the impact of novel spatial sequences on the activity of hippocampal neurons, we monitored hippocampal ensembles while rats learned to switch from two familiar trajectories to a new one in a familiar environm...

Today, there are many concepts such as a sense of place and attachment to place presented in architecture and urban literature in the field of environmental studies. Meanwhile, relationship between the two is not much explained. This study defines the concept of sense of place and attachment to place and the factors influencing them followed by providing a four- dimensional model derived from s...

Recreating real places – as distinct from virtual spaces or environments – using virtual reality technology raises a series of significant challenges. Fortunately there is a large body of existing research into the experience of place which might reasonably contribute to our understanding of the task. This paper reviews key aspects of the 'place' literature, relates them to the concept of prese...

We review evidence for the boundary vector cell model of the environmental determinants of the firing of hippocampal place cells. Preliminary experimental results are presented concerning the effects of addition or removal of environmental boundaries on place cell firing and evidence that boundary vector cells may exist in the subiculum. We review and update computational simulations predicting...