Linguistics
Language is more abstract than you think, or, why aren't languages more iconic?
https://royalsocietypublishing.org/doi/full/10.1098/rstb.2017.0137
Metacognition and abstract concepts
https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2017.0133
Understanding of Abstract Nouns in Linguistic Disciplines
https://www.sciencedirect.com/science/article/pii/S1877042814037598
A SEMANTICS FOR POSITIVE AND COMPARATIVE ADJECTIVES
http://semantics.uchicago.edu/kennedy/classes/w11/comparatives/docs/klein80.pdf
Mental state adjectives: the perspective of Generative Lexicon
https://dl.acm.org/doi/10.3115/992628.992656
Lexical concepts, cognitive models and meaning-construction
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.501.1319&rep=rep1&type=pdf
Multiword Expressions
https://people.eng.unimelb.edu.au/tbaldwin/pubs/altss2004.pdf
Depicting as a Method of Communication
https://pdfs.semanticscholar.org/8528/dfb4480bf8845bd3adb9fe8c51d15f588925.pdf
Charting the development of emotion comprehension and abstraction from childhood to adulthood using observerrated and linguistic measures
https://pdfs.semanticscholar.org/cd03/088011f67fadb56f07c4e2333fc178b42f46.pdf
Cognitive English Grammar
https://scholar.google.com/scholar?cites=7796588413183305143&as_sdt=2005&sciodt=0,5&hl=ru
Metaphor: A practical introduction
https://scholar.google.com/scholar?cites=6786554610724188456&as_sdt=2005&sciodt=0,5&hl=ru
Embodiment vs. Memetics
Contextually Representing Abstract Concepts with Abstract Structures
https://escholarship.org/content/qt4zt536f8/qt4zt536f8.pdf
Abstract noun classification: Using a neural network to match word context and word meaning
https://link.springer.com/content/pdf/10.3758/BF03200654.pdf
Abstract and concrete sentences, embodiment, and languages
https://www.frontiersin.org/articles/10.3389/fpsyg.2011.00227/full
Concrete vs. Abstract Semantics: From Mental Representations to Functional Brain Mapping
https://www.frontiersin.org/articles/10.3389/fnhum.2019.00267/full
What works better for the learning of concrete and abstract words: teachers' L1 use or L2‐only explanations?
https://onlinelibrary.wiley.com/doi/abs/10.1111/ijal.12080
The meaning of ‘life’ and other abstract words: Insights from neuropsychology
https://onlinelibrary.wiley.com/doi/full/10.1111/jnp.12065
Abstract,
Concrete,
General, and
Specific Terms
http://guidetogrammar.org/grammar/composition/abstract.htm
Multi-Modal Models for Concrete and Abstract Concept Meaning
https://www.aclweb.org/anthology/Q14-1023.pdf
Language as a Communication Technology: A Proposal for a New General Linguistic Theory
https://people.socsci.tau.ac.il/mu/danield/files/2010/11/abstract-for-site3.pdf
Making sense of words: a robotic model for language abstraction
https://link.springer.com/article/10.1007/s10514-016-9587-8
Analysis of Nominalization in Proceeding Abstract in Linguistics (Systemic Functional Linguistic Approach)
https://www.atlantis-press.com/proceedings/prasasti-19/125915908
Abstract vs. Concrete Language
https://www.mscc.edu/documents/writingcenter/concrete-vs-abstract-language.pdf
How children learn and use abstract concepts
How Large Can a Receptive Vocabulary Be?
https://academic.oup.com/applij/article-abstract/11/4/341/245279
Math
The Advantage of Abstract Examples in Learning Math
https://science.sciencemag.org/content/320/5875/454
CPA Approach
https://mathsnoproblem.com/en/mastery/concrete-pictorial-abstract/
Concrete-Representational-Abstract
https://makingeducationfun.wordpress.com/2012/04/29/concrete-representational-abstract-cra/