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Related Concept Videos

Diversity of Protists II01:27

Diversity of Protists II

Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
Diversity of Protists I01:15

Diversity of Protists I

Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
Stability of structures01:14

Stability of structures

In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
Diversity of Protists III01:27

Diversity of Protists III

Rhizaria are a diverse group of unicellular protists characterized by their threadlike cytoplasmic extensions known as pseudopodia. These structures aid in both locomotion and feeding, giving Rhizaria an amoeboid appearance. Their amoeboid morphology once led to taxonomic confusion, but molecular phylogenetics has clarified their evolutionary placement and emphasized their shared use of pseudopodia despite divergent lineages.This clade comprises diverse lineages such as Chlorarachniophyta,...
Second Uniqueness Theorem01:16

Second Uniqueness Theorem

Consider a region consisting of several individual conductors with a definite charge density in the region between these conductors. The second uniqueness theorem states that if the total charge on each conductor and the charge density in the in-between region are known, then the electric field can be uniquely determined.
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Microbial Morphologies

Bacterial and archaeal cells exhibit remarkable diversity in shape and structure, critical in their adaptability and functionality. Among bacteria, the most commonly observed shapes include cocci and bacilli. Cocci are spherical and may exist singly or in groupings such as pairs (diplococci), chains (streptococci), clusters (staphylococci), or tetrads. Bacilli, in contrast, are rod-shaped and can also occur as single cells, in pairs, or chains, depending on their environmental and genetic...

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Diversity and unity of modularity.

Bongrae Seok1

  • 1Department of Humanities, Alvernia College.

Cognitive Science
|June 28, 2011
PubMed
Summary

Cognitive modularity, often debated, is a multidimensional property with core unifying features. Understanding these core aspects clarifies its contribution to cognitive science despite varied definitions.

Area of Science:

  • Cognitive Science
  • Philosophy of Mind

Background:

  • Discussions on cognitive modularity stem from Fodor's (1983) work.
  • Existing characterizations of modularity are diverse, leading to confusion.

Purpose of the Study:

  • To classify and analyze different approaches to cognitive modularity.
  • To argue for a unified understanding of modularity.

Main Methods:

  • Literature review and conceptual analysis of modularity theories.
  • Identification of core features across different modularity dimensions.

Main Results:

  • Modularity is a multidimensional property encompassing various cognitive aspects.
  • Core features of modularity provide a unifying framework.

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  • Despite diverse definitions, a fundamental unity underlies modularity.

    • Conclusions:

    • A unified view of modularity, based on core features, is essential for cognitive science.
    • Recognizing this unity resolves definitional ambiguities and advances the field.