A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_session35p3krsv9tdfjlelq823mi9olvi1oq7j): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

Effects of fictive reward on rat's choice behavior. | LitMetric

Effects of fictive reward on rat's choice behavior.

Sci Rep

1] Center for Synaptic Brain Dysfunctions, Institute for Basic Science, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea [2] Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea [3] Neuroscience Laboratory, Institute for Medical Sciences, Ajou University School of Medicine, Suwon 443-721, Korea [4] Neuroscience Graduate Program, Ajou University School of Medicine, Suwon 443-721, Korea.

Published: January 2015

Choices of humans and non-human primates are influenced by both actually experienced and fictive outcomes. To test whether this is also the case in rodents, we examined rat's choice behavior in a binary choice task in which variable magnitudes of actual and fictive rewards were delivered. We found that the animal's choice was significantly influenced by the magnitudes of both actual and fictive rewards in the previous trial. A model-based analysis revealed, however, that the effect of fictive reward was more transient and influenced mostly the choice in the next trial, whereas the effect of actual reward was more sustained, consistent with incremental learning of action values. Our results suggest that the capacity to modify future choices based on fictive outcomes might be shared by many different animal species, but fictive outcomes are less effective than actual outcomes in the incremental value learning system.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4894400PMC
http://dx.doi.org/10.1038/srep08040DOI Listing

Publication Analysis

Top Keywords

fictive outcomes
12
fictive reward
8
rat's choice
8
choice behavior
8
magnitudes actual
8
actual fictive
8
fictive rewards
8
incremental learning
8
fictive
6
choice
5

Similar Publications

Purpose: The aim of this study is to investigate the influence of patient-specific factors, including age, lifestyle considerations as well as the extent of injury according to the Rockwood classification (RW), on the surgeon's decision-making in the choice between operative and nonoperative treatment for acute, high-grade acromioclavicular (AC) joint dislocations.

Methods: Orthopaedic and trauma surgeons were requested to complete an online questionnaire consisting of closed and open questions regarding the treatment of acute, high-grade AC joint dislocations and 24 fictive clinical scenarios.

Results: A total of 133 answered questionnaires were collected.

View Article and Find Full Text PDF

For youth involved in foster care, maltreatment poses enormous challenges to healthy development. The involvement of kin and fictive kin in children's lives has been shown to be a protective factor following maltreatment and may therefore aid in youth's strength development. The present study investigated the association between kin and fictive kin involvement and longitudinal strengths development among youth in foster care ( = 300).

View Article and Find Full Text PDF
Article Synopsis
  • Feedback in decision-making often focuses on positive outcomes, leading to a bias in how people learn to differentiate between good and bad choices.
  • We explore two approaches to overcoming this bias: model-based methods that adjust their understanding based on available feedback and exemplar models that fill in gaps with hypothetical negative outcomes.
  • Our experiments reveal that people generally lean towards using exemplar models with imputation to address missing feedback, but a significant number also apply Bayesian models, indicating varied strategies influenced by uncertainty in the task.
View Article and Find Full Text PDF

Background: Acute myeloid leukemia (AML), a rapidly progressing cancer of the blood and bone marrow, is the most common and fatal type of adult leukemia. Therapeutic web portals have great potential to facilitate AML research advances and improve health outcomes by increasing the availability of data, the speed and reach of new knowledge, and the communication between researchers and clinicians in the field. However, there is a need for stakeholder research regarding their optimal features, utility, and implementation.

View Article and Find Full Text PDF

There are 200+ tested interventions for care partners (family, friends, and fictive kin) of people living with dementia (PLWD). But these interventions do not systematically cover relevant settings. Nor do these interventions affect all relevant outcomes that matter to people and healthcare systems.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!