Cognitive Psychology and Neuroscience: Core Concepts
Multitasking and Cognitive Performance
Performance decreases when doing multiple tasks simultaneously. Practice can improve performance but does not eliminate costs. Task switching incurs costs, specifically the time required to reconfigure the mental set. The multiple demand system is a network of brain regions activated during diverse cognitive tasks.
Feature Integration Theory
Early processing involves features (color, shape) detected automatically in parallel. Later processing requires features
Read MoreClinical Psychology Exam Review: Disorders and Treatments
Sleep Disorders and Treatment
- Sleep efficiency: Percentage of time asleep while in bed. Healthy is ≥85%; below this is in the insomnia range.
- Parasomnias: Abnormal events during sleep.
- Dyssomnias: Issues with sleep quantity, timing, or quality.
3P (Spielman) Model
- Predisposing: Pre-existing biological, psychological, or social vulnerabilities (e.g., neuroticism).
- Precipitating: Acute stressor or illness triggering onset.
- Perpetuating: Coping behaviors that maintain insomnia (e.g., excess time in bed,
Aircraft systems
1.Processes and Histories?
In Artificial Intelligence, processes and histories are important for representing dynamic knowledge—how things change over time rather than just static facts.
Processes refer to sequences of actions or events that lead to a change in state. They describe how something happens. For example, the process of a traffic light system changing from red to green, or a student completing an exam, involves a series of steps. In AI, processes are often modeled using rules, state
Read MoreDivided attention
CIRCADIAN RHYTHMS
3 main properties: 1- 24h period. 2- Endogenous (rhythmic responses continue even in absence of stimulation) 3- Entrainable (rhythms can be reset/adjusted by exposure to external stimuli)
Study: rat has access to running wheel -> turns of wheel recorded on chart recorder, plots each wheel rotation as tick on chart -> each line represents one day’s activity -> activity plotted for month under no light 6am-6pm, rat shown to be active during dark hours of day-night cycle
Zetigebers:
Read MoreHuman Eye Anatomy and Visual Physiology
1. Three Layers of the Eye
Outermost Layer (Fibrous Tunic)
- Sclera: Tough white outer coat; protects and maintains shape.
- Cornea: Transparent front; the main structure that bends (refracts) light.
Middle Layer (Vascular Tunic / Uvea)
- Choroid: Rich in blood vessels; nourishes the retina and absorbs stray light.
- Iris: Colored part; controls pupil size.
- Ciliary Body: Contains muscle that changes lens shape for focusing.
Innermost Layer (Neural Tunic)
- Retina: Contains rods and cones; converts light into electrical
Foundational Concepts in Psychology: Science, Methods, and Brain
Chapter 1: Psychology Science Fundamentals
Defining Psychology and Historical Views
Psychological Science is the scientific study of the Mind (internal/hidden) and Behavior (external/observable).
Historical Shifts in Demographics
- Historically white male dominated.
- Currently, about 70% of PhDs are women, and 30% are People of Color (POC).
Philosophical Foundations
- Dualism (Descartes): Mind and Body are fundamentally different; connected at the pineal gland; non-falsifiable.
- Materialism (Hobbes): “Mind is