Absolute threshold Study guides, Class notes & Summaries

SNP Exam 1 Questions & Answers 2024/2025 Who was Gustav Fechner, and why is he so important to the study of sensation and perception? - ANSWERSHe was the first true experimental psychologist. He contended that the relationship between psychological responses and physical stimuli could be described mathematically. He coined the term psychophysics. Awoke with the idea of systematically studying psychological responses to physical events. What is an absolute threshold? - ANSWERSThe mi...

Chapter 1: Benefits and Risks Associated with Physical Activity Benefits of Physical Activity - Reduction in Cardiovascular Disease Risk Factors - Reduced resting systolic/diastolic pressure Increased serum high-density lipoprotein cholesterol and decreased serum triglycerides Reduced total body fat, reduced intra-abdominal fat Reduced insulin needs, improved glucose tolerance Reduced blood platelet adhesiveness and aggregation Reduced inflammation Components of Health-Related Fitness Co...

Question 1 1 / 1 pts Which of these is not a characteristic of an action potential? Each normal action potential for a given cell type looks identical, depolarizes to the same potential, and repolarizes back to the same resting potential. An action potential at one site causes depolarization at adjacent sites, bringing those adjacent sites to threshold. If an excitable cell is depolarized to threshold in a normal manner, then the occurrence of an action potential is inevitable. On the...

PSY 120 - Exam 2 Purduetransduction - correct answer conversion from sensory stimulus energy to action potential absolute threshold - correct answer the minimum stimulation needed to detect a particular stimulus 50% of the time subliminal messages - correct answer stimuli below our absolute threshold just noticeable difference (JND) or difference threshold - correct answer the minimal change in a stimulus that can just barely be detected Who was Ernst Weber? - correct answer -pr...

What are children lower in compared to adults? correct answers -Generation of ATP via glycolysis -Absolute energy production -Ability to dissipate heat via evaporation -Ability to acclimatize to heat and deal with cold -Economy of walking -BP response to exercise -RPE -Oxygen deficit What are children similar to with adults? correct answers -VO2max (in ml kg-1 min-1) -PC + ATP energy system -Ventilatory threshold What are children higher in compared to adults? correct answers -Max...

PSYCH 101 Exam 2 Latest Version Already Passed sensation the way that our bodies sense stimuli perception how our brains process the stimuli sensed by our body top-down processing information processing guided by a higher-level mental processes bottom-up processing analysis that begins with the sensory receptors absolute threshold the minimum stimulation necessary for detection 50% of the time difference threshold the minimum difference a person can detect between any two st...

AQA A level BIOLOGY 7402/3 Paper 3 Mark scheme June 2023. (There are) stretch-mediated sodium ion channels (in the membrane); 2. (Increased pressure) deforms/changes (sensory neurone/axon) membrane/lamella(e) OR (Increased pressure) deforms/changes sodium ion channels; 3. Sodium ion channels open; 4. Sodium ions diffuse in; 5. Depolarisation (leading to generator potential); 3 max (3 x AO1) 1. 2. 3. or 4. Accept Na+ Max 2 if only reference to sodium and not sodium ions 4. Accep...

ISYE 6501 - Midterm 2 Questions and Answers 100% Correct when might overfitting occur when the # of factors is close to or larger than the # of data points causing the model to potentially fit too closely to random effects Why are simple models better than complex ones less data is required; less chance of insignificant factors and easier to interpret what is forward selection we select the best new factor and see if it's good enough (R^2, AIC, or p-value) add it to our model and fit the mod...

AP PSYCHOLOGY REVIEW, AP PSYCH TEST COMPLETE WITH ANSWERS ablation ANSWER = removal or destruction of brain tissue in a surgical procedure absolute threshold ANSWER = intensity level at which one can detect a stimulus 50% of the time accommodation ANSWER = the process of modifying a schema to account for new information; the process of the eyes lens changing shape in order to focus on distant or near objects acetylcholine (ACh) ANSWER = a neurotransmitter involved in learning, memory a...

sensation - how sensory receptors receive and represent stimulus energies from the environment Perception - how we organize and interpret the sensory information, drawing meaning from the world around us neuron - a cell that conducts electrochemical signals and is the basic unit of the nervous system synesthesia - stimulation of one sense triggers another (feeling colors) Interneurons (association neurons) - neurons that carry messages from motor to sensory nerves myelin sheath - prevents ...