SENSORY TRANSDUCTION Light, sound and pressure exist in the environment. But your brain needs a way to turn these physical signals into information it can process. That's where sensory transduction comes in. Sensory receptors convert forms of physical or chemical energy into electrical signals that the nervous system can process. For example, receptors in your eyes respond to light, while receptors in your ears respond to sound-related vibrations. The brain then processes these signals to help you perceive the world. But here's the important distinction: Sensation is detecting information. Perception is organising and interpreting it. They're closely connected, but they aren't the same process. 🧬 BIOLOGICAL PSYCHOLOGY

TYPE 1 ERROR WHAT IF A STUDY FINDS AN EFFECT THAT ISN'T REALLY THERE? Imagine researchers test whether a new treatment works. The data looks convincing. They find a statistically significant difference and conclude: “The treatment has an effect.” But what if there was actually no real effect? That possibility is called a Type I error. In hypothesis testing, a Type I error occurs when researchers reject a true null hypothesis. In simpler terms: The study says “something is happening” when, in reality, there isn't. It is often called a false positive. This is one reason scientists don't simply ask: “Did we find a significant result?” They also have to ask: “How likely is it that this result could have appeared by chance?” Science isn't just about finding interesting results. It's also about protecting ourselves from being fooled by results that look convincing. 🧠 PSYCHOLOGICAL SCIENCE

WAYOFPsychology · CASE STUDY SATURDAY WHAT HAPPENS WHEN YOU CAN'T FORM NEW MEMORIES? In the 1950s, a man known as H.M. underwent brain surgery to treat severe epilepsy. The operation removed parts of his medial temporal lobe, including major portions of the hippocampal region. Afterward, something extraordinary became clear. He could remember much of his earlier life, but he developed severe anterograde amnesia: he had great difficulty forming new conscious, long-term memories. Researchers could meet him, talk with him, and study him repeatedly. Yet he often could not remember having met them before. But there was another surprise. H.M. could improve at certain motor skills through practice, even when he could not consciously remember practicing them. He could learn without remembering the learning episode. THE QUESTION If someone cannot consciously remember learning something, can they still learn it? H.M.'s case helped show that memory is not a single system. Declarative memory involves consciously recalling facts and events. Procedural learning involves acquiring skills and habits, and relies on partly different neural systems. H.M. therefore became one of the most influential cases in the scientific study of human memory. But his case also leaves us with an ethical question: When research depends on a person's life and experiences, how do we make sure we remember the person behind the data? 🧠 CASE STUDY SATURDAY

CASE STUDY SATURDAY #OO7 DID YOU SEE IT? 🦍 While you were counting the passes, something unexpected walked through the scene. A person in a gorilla suit. Many people don't notice it. This is Inattentional Blindness ...when attention is locked onto one task, we can fail to notice something visible right in front of us. The important part? The gorilla wasn't invisible. Your attention simply wasn't directed toward it. And that's the uncomfortable lesson Seeing something and noticing something aren't the same thing. Your attention doesn't record everything around you. It selects what gets processed.