Extinction, Generalization, and Discrimination

In this video I explain some other terminology for describing aspects of classical conditioning including acquisition, extinction, spontaneous recovery, stimulus generalization, stimulus discrimination, and second-order or higher-order conditioning. Don’t forget to subscribe to the channel to see future videos! Have … Read More

Classical Conditioning

In this video I introduce learning theory and the basic concepts of behaviorism. This begins with the work of Ivan Pavlov on classical conditioning and covers the basic vocabulary for discussing this type of learning including neutral stimulus, unconditioned stimulus, … Read More

Culture and Perception

In this video I consider the role of culture on perception. The fact that we must learn how to perceive the world creates the possibility that our culture can shape our perception. I provide one example of this, known as … Read More

Depth Perception

In this video I describe the many cues that we use to perceive depth and experience a 3D world based on the 2D information from our retinas. These include monocular cues (linear perspective, relative size, texture gradient, interposition, and shading), … Read More

Perceptual Constancy

In this video I describe perceptual constancy, which refers to the idea that we perceive a relatively stable and unchanging world despite the fact that sensory information is changing dramatically. I explain how this applies visually to size, brightness, and … Read More

Gestalt Laws of Perception

In this video I focus on perception and how we make sense of the information coming in from our senses. Gestalt laws refer to general principles for organizing and interpreting sensory information. I provide visual examples for several gestalt laws … Read More

Synesthesia: Mingling the Senses

In this video I explain synesthesia, in which stimulation of one sense can automatically stimulate another, such as seeing colors when hearing pitches or tasting sounds. I also demonstrate one way that researchers can test certain types of synesthesia and … Read More

Gustation: Taste Perception

In this video I explain the process of transduction for taste and how gustatory cells detect tastant molecules in food. I discuss structures of the tongue, including papillae, taste buds, and gustatory cells and consider evolutionary explanations for changes in … Read More

Olfaction: Sense of Smell

In this video I explain the process of transduction for scent; how odorant molecules in the air can trigger different olfactory receptor neurons which then send messages to the rhinencephalon or “nose brain”. I mention the links between scent, emotion, … Read More

Pain Perception

In this video I go into more detail on pain perception. First I discuss the importance of pain as a signal of danger or harm to the body. Next I explain the two types of nerve fibers which carry different … Read More