Tags

Type your tag names separated by a space and hit enter

Crows control working memory before and after stimulus encoding.
Sci Rep. 2020 02 24; 10(1):3253.SR

Abstract

The capacity of working memory is limited and this limit is comparable in crows and primates. To maximize this resource, humans use attention to select only relevant information for maintenance. Interestingly, attention-cues are effective not only before but also after the presentation of to-be-remembered stimuli, highlighting control mechanisms beyond sensory selection. Here we explore if crows are also capable of these forms of control over working memory. Two crows (Corvus corone) were trained to memorize two, four or six visual stimuli. Comparable to our previous results, the crows showed a decrease in performance with increasing working memory load. Using attention cues, we indicated the critical stimulus on a given trial. These cues were either presented before (pre-cue) or after sample-presentation (retro-cue). On other trials no cue was given as to which stimulus was critical. We found that both pre- and retro-cues enhance the performance of the birds. These results show that crows, like humans, can utilize attention to select relevant stimuli for maintenance in working memory. Importantly, crows can also utilize cues to make the most of their working memory capacity even after the stimuli are already held in working memory. This strongly implies that crows can engage in efficient control over working memory.

Authors+Show Affiliations

Faculty of Psychology, Neural Basis of Learning, Ruhr University Bochum, 44801, Bochum, Germany.Faculty of Psychology, Neural Basis of Learning, Ruhr University Bochum, 44801, Bochum, Germany. jonas.rose@rub.de.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

32094457

Citation

Fongaro, Erica, and Jonas Rose. "Crows Control Working Memory Before and After Stimulus Encoding." Scientific Reports, vol. 10, no. 1, 2020, p. 3253.
Fongaro E, Rose J. Crows control working memory before and after stimulus encoding. Sci Rep. 2020;10(1):3253.
Fongaro, E., & Rose, J. (2020). Crows control working memory before and after stimulus encoding. Scientific Reports, 10(1), 3253. https://doi.org/10.1038/s41598-020-59975-4
Fongaro E, Rose J. Crows Control Working Memory Before and After Stimulus Encoding. Sci Rep. 2020 02 24;10(1):3253. PubMed PMID: 32094457.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Crows control working memory before and after stimulus encoding. AU - Fongaro,Erica, AU - Rose,Jonas, Y1 - 2020/02/24/ PY - 2019/06/27/received PY - 2020/01/23/accepted PY - 2020/2/26/entrez PY - 2020/2/26/pubmed PY - 2020/2/26/medline SP - 3253 EP - 3253 JF - Scientific reports JO - Sci Rep VL - 10 IS - 1 N2 - The capacity of working memory is limited and this limit is comparable in crows and primates. To maximize this resource, humans use attention to select only relevant information for maintenance. Interestingly, attention-cues are effective not only before but also after the presentation of to-be-remembered stimuli, highlighting control mechanisms beyond sensory selection. Here we explore if crows are also capable of these forms of control over working memory. Two crows (Corvus corone) were trained to memorize two, four or six visual stimuli. Comparable to our previous results, the crows showed a decrease in performance with increasing working memory load. Using attention cues, we indicated the critical stimulus on a given trial. These cues were either presented before (pre-cue) or after sample-presentation (retro-cue). On other trials no cue was given as to which stimulus was critical. We found that both pre- and retro-cues enhance the performance of the birds. These results show that crows, like humans, can utilize attention to select relevant stimuli for maintenance in working memory. Importantly, crows can also utilize cues to make the most of their working memory capacity even after the stimuli are already held in working memory. This strongly implies that crows can engage in efficient control over working memory. SN - 2045-2322 UR - https://www.unboundmedicine.com/medline/citation/32094457/Crows_control_working_memory_before_and_after_stimulus_encoding L2 - http://dx.doi.org/10.1038/s41598-020-59975-4 DB - PRIME DP - Unbound Medicine ER -
Try the Free App:
Prime PubMed app for iOS iPhone iPad
Prime PubMed app for Android
Prime PubMed is provided
free to individuals by:
Unbound Medicine.