Biology subjects

Newcombe, N. S.

Publications and source records attributed to Newcombe, N. S..

2 recordsLinked to original sources

bioRxiv2024

Spatial Perspective Taking is Distinct from Cognitive and Affective Perspective Taking

Perspective taking (PT) is the ability to imagine viewpoints different from our own. However, the nature of PT as a construct, and its underlying cognitive mechanisms, are not well established. Some researchers propose that understanding what others believe (cognitive PT), feel (affective PT), and see (spatial PT) form a single behavioral dimension, relying on the orienting of attention between competing frame-of-reference representations. Others propose that PT mechanisms are dissociable, although there are three different proposals about such dissociations. The present study examined behavioral associations among measures of spatial, cognitive, and affective PT and attentional control in neurotypical young adults. There was a lack of convergent validity for measures of cognitive and affective PT, pointing to the need for more psychometric work on these dimensions. Much better convergence was found for spatial PT measures. There was little to no behavioral association between spatial PT and either social forms of PT (cognitive or affective) or attentional control measures. This pattern suggests support for a dissociated model in which spatial PT is a distinct cognitive construct.

animal behavior and cognition↗

bioRxiv2018

Everyday taxi drivers: Do better navigators have larger hippocampi?

Work with non-human animals and human navigation experts (London taxi drivers) suggests that the size of the hippocampus, particularly the right posterior hippocampus in humans, relates to navigation expertise. Similar observations, sometimes implicating other sections of the hippocampus, have been made for aging populations and for people with neurodegenerative diseases that affect the hippocampus. These data support the hypothesis that hippocampal volume relates to navigation ability. However, the support for this hypothesis is mixed in healthy, young adults, who range widely in their navigation ability. Here, we administered a naturalistic navigation task that measures cognitive map accuracy to a sample of 90 healthy, young adults who also had MRI scans. Using a sequential analysis design with a registered analysis plan, we did not find that navigation ability related to hippocampal volume (total, right only, right posterior only). We conclude that navigation ability in a typical population does not correlate with variations in hippocampal size, and consider possible explanations for this null result.

neuroscience↗