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Related Concept Videos

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What do you think is the single most influential factor in determining with whom you become friends and whom you form romantic relationships? You might be surprised to learn that the answer is simple: the people with whom you have the most contact. This most important factor is proximity. You are more likely to be friends with people you have regular contact with. For example, there are decades of research that shows that you are more likely to become friends with people who live in your dorm,...
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The Sense of Self: Reflected Self-Appraisal and Social Comparison02:57

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According to Charles Cooley, we base our image on what we think other people see (Cooley 1902). We imagine how we must appear to others, then react to this speculation. We don certain clothes, prepare our hair in a particular manner, wear makeup, use cologne, and the like—all with the notion that our presentation of ourselves is going to affect how others perceive us. We expect a certain reaction, and, if lucky, we get the one we desire and feel good about it. But more than that, Cooley...
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Stereotype Content Model02:16

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The Stereotype Content Model (SCM) was first proposed by Susan Fiske and her colleagues (Fiske, Cuddy, Glick & Xu, 2002; see also Fiske, 2012 and Fiske, 2017). The SCM specifies that when someone encounters a new group, they will stereotype them based on two metrics: warmth—or that group’s perceived intent, and how likely they are to provide help or inflict harm—and competence—or their ability to carry out that objective. Depending on the warmth-competence...
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Information is everywhere and its presentation—such as how and when items are presented—can impact our perceptions and decisions surrounding the info. This broad concept umbrellas framing effects—influences that occur due to the way information is framed in its appearance, whether it’s purely the order or the specific wording of a message. Let’s take a look at numerous ways in which two versions of something can objectively say the same thing, yet we respond in...
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Sternberg's Triangular Theory of Love02:15

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We typically love the people with whom we form relationships, but the type of love we have for our family, friends, and lovers differs. Robert Sternberg (1986) proposed that there are three components of love: intimacy, passion, and commitment. These three components form a triangle that defines multiple types of love: this is known as Sternberg’s triangular theory of love. Intimacy is the sharing of details and intimate thoughts and emotions. Passion is the physical attraction—the...
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Social Facilitation01:04

Social Facilitation

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Not all intergroup interactions lead to negative outcomes. Sometimes, being in a group situation can improve performance. Social facilitation occurs when an individual performs better when an audience is watching than when the individual performs the behavior alone. This typically occurs when people are performing a task for which they are skilled.
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Related Experiment Video

Updated: Feb 8, 2026

Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System
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[E-Cigarettes – Friend or Foe?].

Erich W Russi1

  • 11 Praxis Lungdocs, Zürich.

Praxis
|July 3, 2015
PubMed
Summary
This summary is machine-generated.

E-cigarette vapor contains minimal harmful substances, making vaping significantly less harmful than smoking tobacco. Vaping may aid smokers in reducing cigarette consumption or quitting entirely.

Keywords:
DampfenE-ZigaretteNikotinabhängigkeitRauchenSchadensbegrenzungcigarette électroniquedépendance à la nicotinee-cigaretteharm reductionnicotine dependencesevrage à la nicotinesmokingsubstitut à la nicotinevaping

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Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System
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Area of Science:

  • Toxicology
  • Public Health
  • Addiction Medicine

Background:

  • Combustion of tobacco, not nicotine, generates toxic chemicals causing smoking-related health issues.
  • E-cigarette vapor has significantly lower levels of harmful substances compared to tobacco smoke.

Purpose of the Study:

  • To evaluate the relative harm of e-cigarette vaping compared to traditional cigarette smoking.
  • To assess the potential of e-cigarettes in smoking cessation and reduction.

Main Methods:

  • Review of existing toxicological data on e-cigarette vapor.
  • Analysis of studies on e-cigarette use in adult smokers.

Main Results:

  • E-cigarette vapor contains negligible amounts of harmful combustion byproducts.
  • No evidence suggests e-cigarettes lead to increased cigarette smoking among youth.
  • Vaping shows potential for reducing daily cigarette intake and aiding smoking cessation in dependent smokers.

Conclusions:

  • E-cigarette use is likely substantially less harmful than smoking combustible tobacco.
  • Vaping represents a viable nicotine substitution therapy for smokers.
  • Health professionals should consider evidence-based information on e-cigarettes, moving beyond emotional debates.