The Brain and the Brainless A Lesson in

The Brain and the Brainless: A Lesson in Sensation and Perception Joseph Parziale, Megan Vetter & Yueming Zhang

Sensation and Perception ● What is the difference between sensation of perception? ○ Write down your thoughts on the paper provided

Main questions, Key ideas and Major Understandings What is sensation and perception? What is the significance of having a brain? Can brainless organisms make decisions?

Lesson Structure The focus section will involve an activity involving the human brain The zoom section will involve observing sensation and perception in a brainless organism C. M Focus Section S. M Zoom Section E. M S. M

Introduction to Euglena ● Unicellular, photosynthetic Algae ● Detect light with an eyespot-contains retinal

Euglena Phototaxis: Movement in response to light Euglena avoids light that is too intense or not intense enough Euglena is attracted to blue light and has no response to red light

Experiments with Euglena - No obvious response for filter paper experiments Euglena shows more obvious results with response to light intensity Ex: laser pointers Currently testing out experiments with laser pointers and LED circuits, because they show stronger mass-movement

Introduction to EEG Cap Electro. Encephalo. Graphy=Measurement of electrical activity of different regions of the brain Kit measures alpha waves of brain-waves that originate from the occipital lobe during wakeful relaxation with closed eyes.

EEG Cap Experiment We will have a student be hooked up to an EEG kit from Backyard Brains They will be asked to close their eyes for 10 seconds then open them. This will be repeated again.