Conceptual distinctions amongst generics.

Area of Science:

• Linguistics
• Cognitive Science
• Psychology

Background:

• Generic sentences, such as 'dogs have four legs,' express generalizations about kinds.
• Existing semantic approaches struggle with certain types of generics, like striking property and minority characteristic generics.
• Theories often rely on prevalence, cue validity, or normalcy to explain the acceptability of generics.

Purpose of the Study:

• To investigate the conceptual foundations of generic sentences.
• To test claims of formal semantic approaches regarding factors licensing generics.
• To examine challenging cases: striking property generics and minority characteristic generics.

Main Methods:

• Conducted three experiments to explore the conceptual basis of generics.
• Investigated the roles of prevalence, cue validity, and normalcy in licensing generic statements.
• Analyzed two classes of generics: striking property ('sharks bite swimmers') and minority characteristic ('ducks lay eggs').

Main Results:

• Striking generics are licensed by a causal connection between a kind and a property, not statistical or principled connections.
• Minority characteristic generics involve principled connections, creating an expectation of the property without strict requirement.
• Prevalence and generic acceptability can be dissociated; findings challenge normalcy and cue validity approaches.

Conclusions:

• The findings support a conceptually based approach to the semantics of generics over purely quantificational or normalcy-based accounts.
• Causal and principled connections play distinct, crucial roles in the interpretation of different types of generic statements.
• Understanding generics requires considering the nature of the relationship between a kind and its properties.