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Related Concept Videos

Mate Choice01:20

Mate Choice

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Mate choice—the decision about whom to mate with—is a type of natural selection, since animals must reproduce to pass down their genes. Mate choice is also called intersexual selection because the behavior occurs between the sexes.
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Natural Selection and Mating Preferences01:06

Natural Selection and Mating Preferences

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The principle of natural selection posits that organisms better adapted to their environment are more likely to survive and reproduce. This principle is closely intertwined with mating preferences, a key aspect of sexual selection, which evolutionary psychologists believe is driven by instincts to propagate one's genes. Such instincts significantly influence mating behaviors and preferences between genders.
Females, due to their biological roles in conception, pregnancy, and nursing,...
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Personal Choice and Fate Attributions01:19

Personal Choice and Fate Attributions

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Some individuals interpret life events as a consequence of their personal choices and actions, while others believe that outcomes are dictated by fate or destiny. This divergence in perspective has been examined in psychological and cross-cultural studies, particularly in relation to religious faith and cultural beliefs about causality.Fate and Personal ResponsibilityPeople who emphasize personal responsibility view events as direct consequences of their decisions. For instance, breaking a leg...
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Factors Affecting α-Alkylation of Ketones: Choice of Base01:10

Factors Affecting α-Alkylation of Ketones: Choice of Base

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α-Alkylation of ketones is achieved in the presence of alkyl halides and a base. The reaction proceeds via the formation of an enolate ion followed by nucleophilic substitution. The choice of base employed is essential as it is the key factor in determining the reaction outcome.
The reaction involving bases like EtO− whose conjugate acid EtOH (pKa = 15.9) is stronger than the ketone (pKa = 19.2) results in an equilibrium mixture with higher ketone concentration. As a consequence,...
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Self-Evaluation: Self-Enhancement and Self-Verification03:00

Self-Evaluation: Self-Enhancement and Self-Verification

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Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
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Nursing Evaluation01:15

Nursing Evaluation

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The evaluation stage signals the end of the nursing process. The nurse gathers evaluative data to assess whether or not the patient has attained the expected results. Whereas the nurse collects data in the nursing assessment to identify the patient's health concerns, the evaluation stage data determines if the indicated health issues are resolved. Evaluative data collection includes two sections: the data acquired to evaluate patient outcomes and the time criteria for data collection.
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Related Experiment Video

Updated: Feb 6, 2026

Using the FishSim Animation Toolchain to Investigate Fish Behavior: A Case Study on Mate-Choice Copying In Sailfin Mollies
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Using the FishSim Animation Toolchain to Investigate Fish Behavior: A Case Study on Mate-Choice Copying In Sailfin Mollies

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Evaluation and hedonic value in mate choice.

Gil G Rosenthal1,2,

  • 1Texas A&M University, College Station, TX, USA.

Current Zoology
|August 16, 2018
PubMed
Summary
This summary is machine-generated.

Mating preferences vary due to changes in how the brain values stimuli, influenced by genes, environment, or social factors. These shifts can rapidly alter preferences, impacting evolution and speciation.

Keywords:
associative learningassortative matingmating preferencesensory biologyvalence

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Observation and Quantification of Mating Behavior in the Pinewood Nematode, Bursaphelenchus xylophilus
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Observation and Quantification of Mating Behavior in the Pinewood Nematode, Bursaphelenchus xylophilus
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Area of Science:

  • Behavioral Ecology
  • Neuroscience
  • Evolutionary Biology

Background:

  • Mating preferences exhibit significant individual variation despite consistent sensory input.
  • This variation is linked to the brain's evaluative mechanisms, assigning hedonic (pleasure/displeasure) values to stimuli.
  • Genetic, environmental, and social factors demonstrably alter these hedonic values.

Purpose of the Study:

  • To explore the mechanisms underlying the variability of mating preferences.
  • To investigate how evaluative processes, influenced by external factors, modify hedonic value.
  • To highlight the role of preference reversals in evolutionary models.

Main Methods:

  • Review of behavioral evidence demonstrating changes in stimulus evaluation.
  • Analysis of the modifiability of evaluative mechanisms through genetic and environmental inputs.
  • Conceptual modeling of preference evolution incorporating discontinuous changes.

Main Results:

  • Evaluative mechanisms are highly modifiable, leading to rapid preference changes.
  • Hedonic value "flips" are common, causing preference reversals.
  • Such dynamic preference shifts are crucial for understanding trait diversification and speciation.

Conclusions:

  • Understanding the plasticity of hedonic value assignment is key to explaining mating preference variation.
  • Discontinuous changes in preference should be integrated into evolutionary models.
  • This approach can advance theories on sexual conflict and sympatric speciation.