Psych 111 1st Edition Lecture 6Outline of Last Lecture I. What are biological influences on behavior and thought?II. Neurosciencea. Overview of Nervous Systemb. Brain Structures & Functionsc. Neural CommunicationOutline of Current Lecture I. Overview of Sensation & PerceptionII. Sensory PrinciplesIII. Senses• Vision• Hearing• Smell• Taste• TouchCurrent LecturePsy 111Introduction to PsychologySENSATIONHow do we know our world?Sensationdetection of energy in environment and its conversion to neural impulsePerceptionrepresentation, organization, and interpretation of information in brainNeuroscience ModelBehavioral ModelCognitive ModelExample of Top-Down ProcessingAoccdrnig to rscheearch at CmabrigdeUinervtisy, it deosn’tmttaer in wahtoredr theltteers in a wrod are, the olnyiprmoetnttihng is taht the frist and lsatltteer be at therghitpclae. The rset can be a total mses and you can sitllraed it wouthit a porbelm. Tihsisbcuseae the huamnmniddeosnotraederveylteter by istlef, but the wrod as a wlohe.Reading Involves Bottom-Up and Top-Down ProcessingWhat is absolute threshold?Minimum stimulation detectedWhat affects detection of stimuli?Detection=Sensory ProcessThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.+DecisionHow is decision analyzed?Signal Detection AnalysisWhat is just noticeable difference?Smallest difference detectedWhat is adaptive value of sensory adaptation?• Tune out unimportant or regular info• Notice important or new infoWhat are adaptive functions of smell?• Attraction• Repulsion• Memory• Lust• Hunger• SpiritualityTake Home Messages(Sensation)• Sensation and perception work together to detect (sensation) and interpret (perception)information in our world• Our senses are not unbiased recorders of physical energy, but rather naturally selectedtools that have aided survival• Some general principles apply to all senses and are characteristic of the mind as
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