uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A computational model of pupil dilation
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology. Lund University, Cognitive Science, Lund.ORCID iD: 0000-0002-9834-4279
Lund University, Cognitive Science, Lund.ORCID iD: 0000-0002-1478-6329
2018 (English)In: Connection science (Print), ISSN 0954-0091, E-ISSN 1360-0494, Vol. 30, no 1, p. 5-19Article in journal (Refereed) Published
Abstract [en]

We present a system-level connectionist model of pupil control that includes brain regions believed to influence the size of the pupil. It includes parts of the sympathetic and parasympathetic nervous system together with the hypothalamus, amygdala, locus coeruleus, and cerebellum. Computer simulations show that the model is able to reproduce a number of important aspects of how the pupil reacts to different stimuli: (1) It reproduces the characteristic shape and latency of the light-reflex. (2) It elicits pupil dilation as a response to novel stimuli. (3) It produces pupil dilation when shown emotionally charged stimuli, and can be trained to respond to initially neutral stimuli through classical conditioning. (4) The model can learn to expect light changes for particular stimuli, such as images of the sun, and produces a “light-response” to such stimuli even when there is no change in light intensity. (5) It also reproduces the fear-inhibited light reflex effect where reactions to light increase is weaker after presentation of a conditioned stimulus that predicts punishment.

Place, publisher, year, edition, pages
2018. Vol. 30, no 1, p. 5-19
Keywords [en]
Light reflex, pupil control, computational model, system-level brain model
National Category
Computer Sciences Psychology
Identifiers
URN: urn:nbn:se:uu:diva-346368DOI: 10.1080/09540091.2016.1271401ISI: 000423831600002OAI: oai:DiVA.org:uu-346368DiVA, id: diva2:1191244
Funder
EU, European Research Council, ERC-StG CACTUS 312292Available from: 2018-03-16 Created: 2018-03-16 Last updated: 2018-03-16Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records BETA

Johansson, Birger

Search in DiVA

By author/editor
Johansson, BirgerBalkenius, Christian
By organisation
Department of Psychology
In the same journal
Connection science (Print)
Computer SciencesPsychology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 2578 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf