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Revisionist Views of Adolescent and Adult Cognition01:24

Revisionist Views of Adolescent and Adult Cognition

A revisionist approach to Jean Piaget's theory of cognitive development has brought new insights that challenge and reinterpret his established ideas. Piaget proposed that the formal operational stage, emerging in adolescence, represents the culmination of cognitive maturity. During this stage, individuals are said to develop abstract thinking, engage in systematic problem-solving, and show a form of egocentrism, believing others are as preoccupied with their behavior as they are themselves.
Schemas01:42

Schemas

A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.
Issues And Trends In Healthcare Delivery System01:29

Issues And Trends In Healthcare Delivery System

The issues and trends in healthcare delivery are constantly changing. The COVID-19 pandemic is one recent issue that wreaked havoc on healthcare systems, causing a shortage of healthcare workers, high demand for medicines and supplies, and increased medical expenditure due to a lack of insurance. Other issues include rising healthcare costs and care fragmentation.
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
Current Trends in Nursing II01:30

Current Trends in Nursing II

Trends in nursing are multifactorial and associated with changes in society, within the nursing profession, and in other professions. Notably, telehealth and remote nursing contribute to successful healthcare delivery for numerous patients and help reduce stress for nurses due to nursing shortages. Nurses can reach patients, monitor their conditions, and interact with them using computers, audio, visual accessories, and telephones—for example, remote patient monitoring systems. Likewise,...
Evolutionary Psychology01:20

Evolutionary Psychology

Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the human psyche...
Piaget's Theory of Cognitive Development from Childhood into Adulthood01:25

Piaget's Theory of Cognitive Development from Childhood into Adulthood

Jean Piaget's theory of cognitive development emphasizes the role of thinking in a child's learning process, suggesting that children are naturally curious about their environment. His approach to development is discontinuous, proposing that cognitive abilities progress through distinct stages, each with unique characteristics. Central to Piaget's theory is schemata—mental structures that allow individuals to understand and interpret the world.
Schemata: Building Blocks of Knowledge
Schemata...

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Changing challenges and paradigms.

Donald E Stevenson1

  • 1dsteve65@aol.com

Human & Experimental Toxicology
|March 25, 2010
PubMed
Summary
This summary is machine-generated.

Concepts in toxicology and risk assessment evolve non-linearly, challenging established dogmas. Embracing multiphasic dose-responses and examining assumptions can yield new biological insights.

Related Experiment Videos

Area of Science:

  • Toxicology and Risk Assessment
  • Biological Modeling

Background:

  • Scientific concepts often evolve unpredictably, influenced by events and societal factors rather than linear progression.
  • Established principles like 'the dose makes the poison' have historically shaped our understanding of toxicological relationships.
  • Risk aversion can limit the exploration of complex biological responses.

Observation:

  • The concept of hormesis (a biphasic dose-response) is recognized, but multiphasic dose-responses remain underexplored.
  • The Biological Exposure Limits and Environmental (BELLE) initiative demonstrates the value of challenging existing dogmas.
  • BELLE's newsletter highlights how examining previously overlooked data can generate novel insights.

Findings:

  • Acceptance of multiphasic dose-response models offers potential for deeper understanding of biological relationships.
  • Challenging assumptions and dogmas through rigorous data examination is crucial for scientific advancement.
  • The non-linear evolution of scientific concepts necessitates continuous re-evaluation of underlying principles.

Implications:

  • Future biological modeling requires critical examination of all inputs and assumptions.
  • Adopting multiphasic dose-response concepts can refine risk assessment and toxicological evaluations.
  • Interdisciplinary collaborations and open data examination are key to overcoming scientific inertia.