↓ Skip to main content

Functional Organization of the Parahippocampal Cortex: Dissociable Roles for Context Representations and the Perception of Visual Scenes

Overview of attention for article published in Journal of Neuroscience, February 2016
Altmetric Badge

About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (80th percentile)
  • Above-average Attention Score compared to outputs of the same age and source (57th percentile)

Mentioned by

twitter
14 X users

Citations

dimensions_citation
45 Dimensions

Readers on

mendeley
116 Mendeley
You are seeing a free-to-access but limited selection of the activity Altmetric has collected about this research output. Click here to find out more.
Title
Functional Organization of the Parahippocampal Cortex: Dissociable Roles for Context Representations and the Perception of Visual Scenes
Published in
Journal of Neuroscience, February 2016
DOI 10.1523/jneurosci.3368-15.2016
Pubmed ID
Authors

Oliver Baumann, Jason B. Mattingley

Abstract

The human parahippocampal cortex has been ascribed central roles in both visuospatial and mnemonic processes. More specifically, evidence suggests that the parahippocampal cortex subserves both the perceptual analysis of scene layouts as well as the retrieval of associative contextual memories. It remains unclear, however, whether these two functional roles can be dissociated within the parahippocampal cortex anatomically. Here, we provide evidence for a dissociation between neural activation patterns associated with visuospatial analysis of scenes and contextual mnemonic processing along the parahippocampal longitudinal axis. We used fMRI to measure parahippocampal responses while participants engaged in a task that required them to judge the contextual relatedness of scene and object pairs, which were presented either as words or pictures. Results from combined factorial and conjunction analyses indicated that the posterior section of parahippocampal cortex is driven predominantly by judgments associated with pictorial scene analysis, whereas its anterior section is more active during contextual judgments regardless of stimulus category (scenes vs objects) or modality (word vs picture). Activation maxima associated with visuospatial and mnemonic processes were spatially segregated, providing support for the existence of functionally distinct subregions along the parahippocampal longitudinal axis and suggesting that, in humans, the parahippocampal cortex serves as a functional interface between perception and memory systems. The functional neuroanatomy of the parahippocampal cortex is still subject to considerable debate. Specifically, its relative contributions to visuospatial and mnemonic functions remain unclear. This study constitutes the first evidence for the existence of distinct information-processing properties along the parahippocampal longitudinal axis. Our findings implicate the posterior section of the parahippocampus in visuospatial perception and the anterior section in contextual mnemonic processes. Our study provides novel neuroanatomical information critical for understanding the diversity of the purported functions of the human parahippocampal cortex.

X Demographics

X Demographics

The data shown below were collected from the profiles of 14 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 116 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
France 2 2%
United States 2 2%
United Kingdom 1 <1%
Unknown 111 96%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 24 21%
Researcher 24 21%
Student > Master 15 13%
Student > Bachelor 6 5%
Student > Postgraduate 6 5%
Other 26 22%
Unknown 15 13%
Readers by discipline Count As %
Psychology 37 32%
Neuroscience 30 26%
Agricultural and Biological Sciences 7 6%
Medicine and Dentistry 4 3%
Computer Science 3 3%
Other 8 7%
Unknown 27 23%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 9. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 01 July 2016.
All research outputs
#4,080,500
of 24,482,039 outputs
Outputs from Journal of Neuroscience
#6,627
of 23,779 outputs
Outputs of similar age
#60,040
of 303,843 outputs
Outputs of similar age from Journal of Neuroscience
#142
of 334 outputs
Altmetric has tracked 24,482,039 research outputs across all sources so far. Compared to these this one has done well and is in the 83rd percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 23,779 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 13.6. This one has gotten more attention than average, scoring higher than 72% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 303,843 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 80% of its contemporaries.
We're also able to compare this research output to 334 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 57% of its contemporaries.