Attention, Memory & Expertise
Working memory, sustained and divided attention, deliberate practice, cognitive control, and expert performance.
A bridge, not a proof catalogue. Inclusion means that a work helps define a construct, method, mechanism, or research context. It does not imply that a modern study validates a traditional practice.
How to read the library
Direct evidence, component evidence, and analogy are not the same.
Direct evidence
The named traditional practice or population was studied.
Component evidence
A constituent such as breathing, repetition, fasting, or bilingualism was studied.
Analogical evidence
A related but non-equivalent phenomenon informs the question.
Research hypothesis
The proposed relationship remains to be tested adequately.
Browse by theme
Six starting collections
Language, Sanskrit & Neuroplasticity
Bilingualism, multilingual experience, language learning, recitation, auditory–motor integration, and cognitive reserve.
Mantra, Meditation, Breath & Attention
Repetition, contemplative attention, slow breathing, autonomic regulation, and emotional self-regulation.
Ritual, Habit & Human Behavior
Meaning, expectancy, repeated routines, social identity, adherence, and behavioral regulation.
Memory, Grief & Ancestral Practices
Continuing bonds, autobiographical memory, family narratives, bereavement, ritual, and identity.
Fasting, Circadian Practice & Health
Religious fasting, time-restricted eating, metabolic health, circadian biology, and self-regulation.
Public pilot • reviewed September 2026
Annotated evidence records
These original summaries emphasize what a paper can support, what it cannot support, and why it belongs in an IvyPandit inquiry.
01
Language, Sanskrit & Neuroplasticity
Bilingualism: Pathway to Cognitive Reserve
Citation: Bialystok E. Trends in Cognitive Sciences. 2021;25(5):355–364.
This review evaluates evidence linking bilingual experience with cognitive reserve across healthy aging, dementia onset, neuropathology, and cognitive decline. It supports studying multilingual experience as a potentially meaningful form of sustained cognitive training.
Study type: Review
Relationship to IKS topic: Component evidence
Evidence assessment: Moderate
Important limitationBilingual experience is heterogeneous, and observational associations do not prove that learning Sanskrit produces the same effects.
02
Language, Sanskrit & Neuroplasticity
Does bilingualism contribute to cognitive reserve?
Citation: Guzmán-Vélez E, Tranel D. Neuropsychology. 2015;29(1):139–150.
A critical review of bilingualism and cognitive reserve, including possible neural mechanisms and the influence of education, immigration, proficiency, and language use.
Study type: Review
Relationship to IKS topic: Component evidence
Evidence assessment: Moderate
Important limitationThe literature is vulnerable to confounding and inconsistent definitions of bilingualism.
03
Language, Sanskrit & Neuroplasticity
Bilingualism delays age at onset of dementia, independent of education and immigration status
Citation: Alladi S, et al. Neurology. 2013;81(22):1938–1944.
A clinical cohort from India reported later dementia presentation among bilingual participants after adjustment for several measured factors. The study is especially relevant to multilingual Indian populations.
Study type: Observational study
Relationship to IKS topic: Component evidence
Evidence assessment: Moderate
Important limitationRetrospective observational design cannot establish causation, and the result should not be generalized to a particular language or recitation practice.
04
Mantra, Meditation, Breath & Attention
What is the current evidence on meditation and the brain?
Citation: Fox KCR, et al. Neuroscience & Biobehavioral Reviews. 2014;43:48–73.
A meta-analysis examined structural neuroimaging findings associated with meditation practice and identified recurring regional patterns while emphasizing substantial methodological variation.
Study type: Systematic review
Relationship to IKS topic: Component evidence
Evidence assessment: Moderate
Important limitationMeditation traditions, expertise, comparison groups, and imaging methods vary; findings do not directly validate mantra or Sandhyopāsanā.
05
Mantra, Meditation, Breath & Attention
How breath-control can change your life
Citation: Zaccaro A, et al. Frontiers in Human Neuroscience. 2018;12:353.
This review synthesizes psychophysiological findings on slow breathing, including autonomic, cardiovascular, respiratory, and central nervous system correlates.
Study type: Narrative systematic review
Relationship to IKS topic: Component evidence
Evidence assessment: Preliminary–moderate
Important limitationProtocols and populations differ substantially. Slow-breathing evidence is not equivalent to evidence for a complete traditional practice.
06
Mantra, Meditation, Breath & Attention
Effect of rosary prayer and yoga mantras on autonomic cardiovascular rhythms
Citation: Bernardi L, et al. BMJ. 2001;323:1446–1449.
The study reported that repetitive prayer and mantra recitation at approximately six cycles per minute synchronized respiratory and cardiovascular rhythms and increased baroreflex sensitivity.
Study type: Physiology study
Relationship to IKS topic: Component evidence
Evidence assessment: Preliminary
Important limitationSmall physiological study; it evaluated short-term component effects rather than health outcomes or the distinctive meaning of any tradition.
07
Attention, Memory & Expertise
The Cambridge handbook perspective on expertise and expert performance
Citation: Ericsson KA, Krampe RT, Tesch-Römer C. Psychological Review. 1993;100(3):363–406.
Foundational work on deliberate practice provides a framework for examining how prolonged, structured training may produce exceptional performance.
Study type: Review
Relationship to IKS topic: Analogical evidence
Evidence assessment: Moderate
Important limitationGeneral expertise research cannot substitute for direct phenotyping and study of Avadhāna practitioners.
08
Attention, Memory & Expertise
Working memory: theories, models, and controversies
Citation: Baddeley A. Annual Review of Psychology. 2012;63:1–29.
A major review of working-memory theory relevant to the design of tasks examining storage, manipulation, interference, and executive control in complex performance.
Study type: Cognitive science review
Relationship to IKS topic: Analogical evidence
Evidence assessment: Moderate
Important limitationIt supplies constructs and methods, not evidence about Avadhāna itself.
09
Ritual, Habit & Human Behavior
Rituals alleviate grieving for loved ones, lovers, and lotteries
Citation: Norton MI, Gino F. Journal of Experimental Psychology: General. 2014;143(1):266–272.
A series of studies found associations between ritualized action, perceived control, and reduced grief following different forms of loss.
Study type: Experimental social science
Relationship to IKS topic: Analogical evidence
Evidence assessment: Preliminary
Important limitationThe experiments do not study Hindu ancestral rites and cannot establish the theological meaning or clinical benefit of śrāddha.
10
Memory, Grief & Ancestral Practices
Continuing bonds in bereavement: an attachment theory based perspective
Citation: Field NP. Death Studies. 2006;30(8):739–756.
This work examines how an ongoing inner relationship with the deceased may function adaptively or maladaptively depending on context.
Study type: Bereavement scholarship
Relationship to IKS topic: Conceptual evidence
Evidence assessment: Contextual
Important limitationContinuing-bonds theory is not direct evidence about Pitṛpakṣa or ancestral ritual.
11
Fasting, Circadian Practice & Health
Effects of intermittent fasting on health, aging, and disease
Citation: de Cabo R, Mattson MP. New England Journal of Medicine. 2019;381:2541–2551.
A broad review describes metabolic switching and clinical evidence concerning intermittent fasting in health and disease.
Study type: Review
Relationship to IKS topic: Component evidence
Evidence assessment: Moderate
Important limitationIntermittent-fasting protocols differ from Ekādaśī observance in timing, foods, intention, and devotional context.
12
Fasting, Circadian Practice & Health
Early time-restricted feeding improves metabolic health independent of weight loss
Citation: Sutton EF, et al. Cell Metabolism. 2018;27(6):1212–1221.e3.
In men with prediabetes, early time-restricted feeding improved several metabolic and cardiovascular measures without requiring weight loss.
Study type: Randomized crossover trial
Relationship to IKS topic: Component evidence
Evidence assessment: Preliminary–moderate
Important limitationSmall, short-duration trial in a selected population; it does not test religious fasting or Ekādaśī.
Help improve the evidence map
Know an important study, critical review, negative finding, or scholarly correction?
Please send the complete citation and a short explanation of why it belongs. Inclusion does not imply endorsement or affiliation.