Parts of the Eye: How Vision Works

In this video I describe the parts of the eye and the function of each of these parts for vision. I also explain why the red-eye effect occurs in photographs and how an additional light is able to correct for … Read More

Signal Detection Theory

In this video I explain how signal detection theory relates to psychophysics and the study of absolute and difference thresholds. I also explain how response criteria play a role in signal detection theory and the possibility of type I and … Read More

Psychophysics!

In this video I introduce psychophysics and explain the difference between the absolute threshold and the difference threshold (or just noticeable difference). I also discuss the difficulties of measuring our sensitivity to stimulation and provide a simple demonstration of Weber’s … Read More

Introduction to Sensation and Perception

In this video I introduce sensation and perception by explaining the difference between these two related terms. I also define transduction and consider how the organization and interpretation of sensory stimulation involves learning, experience, and the possibility for multiple interpretations … Read More

Chromosomal Abnormalities and Molecular Genetics

In this video I introduce examples of molecular genetics and how specific genes or chromosomes can influence traits, behaviors, or illnesses. The difference between genetic and inherited is defined and several chromosomal abnormalities are explained including Down Syndrome, Turner Syndrome, … Read More

What is Heritability?

In this video I provide a basic introduction to twin studies and heritability scores. I explain how a heritability score tells us about the role of genes in explaining variance in a trait. I also discuss some common errors and … Read More

Introduction to Genetics and Shared Genes

In this video I provide a basic introduction to genetics and explain genes, genomes, DNA, chromosomes, and genetic relatedness of parents, offspring, siblings, and identical and fraternal twins. Don’t forget to subscribe to the channel to see future videos! Have … Read More

Parts of the Brain: Forebrain – Cerebral Cortex

In this video I continue explaining parts of the brain and focus on the cerebral cortex. The cortex is the thin, wrinkled, outer covering of the brain and the wrinkles and folds create gyri, sulci, and fissures. The cortex is … Read More

Parts of the Brain: Forebrain – Subcortical Structures

In this video I continue covering parts of the brain and move to the subcortical structures of the forebrain including the thalamus, pituitary gland, limbic system (hypothalamus, hippocampus, and amygdala), basal ganglia, and corpus callosum. I also mention the Genes … Read More