In this video I go into more detail on the retina, describing the two main types of photoreceptors (rods and cones) and how they operate in different levels of light. Next I describe the composition of receptive fields and how … 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
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
Brain Scanning and Imaging Techniques
In this video I briefly explain how information can be collected about the structure and function of a living brain using scanning and imaging techniques including EEG, CAT scan, PET scan, MRI, fMRI, and DTI. Don’t forget to subscribe to … Read More