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Related Concept Videos

Purposive Learning01:22

Purposive Learning

E. C. Tolman emphasized the purposiveness of behavior — the idea that much of our behavior is goal-directed. For instance, employees who aim for a promotion work diligently to meet their targets. Tolman argued that when classical conditioning and operant conditioning occur, the organism acquires certain expectations. In classical conditioning, a child might fear a dog because they expect it to bite. In operant conditioning, a person might consistently work overtime because they expect a bonus...
Observational Learning01:12

Observational Learning

Albert Bandura's observational learning, also known as imitation or modeling, occurs when a person observes and imitates another's behavior. It is a quicker process than operant conditioning. A well-known example is the Bobo doll study, where children who saw an adult acting aggressively towards the doll were more likely to act aggressively when left alone, compared to those who observed a nonaggressive adult. Many psychologists view observational learning as a form of latent learning because...
Hybrid Zones02:29

Hybrid Zones

Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.Gene flow and natural selection are evolutionary mechanisms that shape the outcome of a hybrid zone. Gene flow...
Cognitive Learning01:21

Cognitive Learning

Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
Introduction to Learning01:18

Introduction to Learning

Learning is the process of acquiring knowledge or skills through practice or experience, leading to long-lasting behavioral changes. This acquisition occurs through interaction with the environment and requires practice or experience. For instance, mastering a skill such as surfing requires considerable practice and experience, highlighting the essential role of repeated interactions with the environment in learning.
In contrast to learned behaviors, unlearned behaviors such as crying, sexual...
Associative Learning01:27

Associative Learning

Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...

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Related Experiment Videos

Interactive learning: lessons from two hybrids over two decades.

Stanley Fields1

  • 1Howard Hughes Medical Institute, Departments of Genome Sciences and Medicine, University of Washington, Seattle, WA 98195, USA. fields@u.washington.edu

Proteomics
|October 17, 2009
PubMed
Summary
This summary is machine-generated.

The yeast two-hybrid assay, developed in 1989, revolutionized protein-protein interaction studies. Its origin highlights key lessons in scientific technology development and community-driven expansion.

Related Experiment Videos

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Genetics

Background:

  • The yeast two-hybrid (Y2H) assay, established in 1989, is a cornerstone technique for identifying protein-protein interactions.
  • Its development was driven by interests in technological advancement rather than specific biological questions.

Observation:

  • The Y2H system's origin underscores the unpredictable nature of scientific innovation.
  • The assay's subsequent widespread adoption and expansion demonstrate the power of community engagement in technology development.

Findings:

  • The Y2H approach has facilitated the creation of extensive protein interaction datasets.
  • Key factors in technology origination include timeliness, experimental persistence, and the adaptability of biological molecules.

Implications:

  • Understanding the genesis of the Y2H assay provides valuable insights into the process of scientific technology development.
  • The success of Y2H highlights the importance of interdisciplinary collaboration and training in advancing scientific methodologies.