BIOLOGY 305 LAB COMPARATIVE ANIMAL PHYSIOLOGYANNOUNCEMENTSSlide 3Slide 4Slide 5Slide 6Slide 7Slide 8THIS WEEK IN LAB: INSTRUMENTATIONTHIS WEEK IN LAB: INSTRUMENTATIONSlide 11Slide 12THIS WEEK: REACTION TIMESTHIS WEEK: STIMULUS RESPONSE PATHWAYSREACTION TIMESREACTION TIMESREACTION TIMESSlide 18THIS WEEK: REFLEXESREFLEXESOTHER INFLUENCESBIOLOGY 305 LABCOMPARATIVE ANIMAL PHYSIOLOGYLab 2: Stimulus Response PathwaysReaction Times & ReflexesANNOUNCEMENTSCarbon Copy Notebooks:Required for lab NEXT week:•Buy at UMBC bookstore or ONLINE•Bring to lab EVERY week!ANNOUNCEMENTSLab Exercises:Usually available Friday afternoon online Print out and bring to lab with you!ANNOUNCEMENTSLab Quizzes:First quiz in lab NEXT week!½ material from previous lab, ½ from future labBased on lab exercises and lab leadoffANNOUNCEMENTSLab Practical EXAM:Week after NEXT!Open lab hours begin NEXT week and schedule will be posted on course web pageBased on Exercise #1: TutorialANNOUNCEMENTSCLICKERS:Bring Pads to EVERY LeadoffYou may miss ONE without penaltyIn class, press any button to turn clicker ON–Set Channel to 41•Press “Ch” button, enter 41 and then “Ch” button againANNOUNCEMENTSAssignment #1: Animal Care & Use Report:Justify use of animals in TEACHING laboratories –Focus on use of animals in education & teaching–NOT research!Due AS YOU WALK IN THE DOOR to lab–Submit ELECTRONICALLY before lab»Submit through Blackboard (Safe Assign)»Instructions for electronic submission on course web site– Bring a printed (hard copy) of paper to lab–NO late submissions (hard copy or electronic) acceptedANNOUNCEMENTSAssignment #1: Animal Care & Use Report:Minimum of 2 DIFFERENT scientific referencesCitations:•In TEXT and full bibliography at end of paper•In text citations after every SENTENCE!!!•Proper citation FORMAT (link) on course web page•Follow link on course web page to avoid plagiarismSpelling, grammar & organization COUNT!THIS WEEK IN LAB:INSTRUMENTATION Exercise 1:Use of the pulse transducer to indirectly measure heart rate (HR)THIS WEEK IN LAB: INSTRUMENTATIONExercise 1: The Pulse TransducerWhat is a Pulse Transducer?Important Concepts:–Flow of Information –Analog vs. Digital signals –Sampling Frequency–AliasingTHIS WEEK IN LAB: INSTRUMENTATIONExercise 1: The Pulse Transducer•The Output: TRACE•Amplitude•Frequency•PeriodStimulus Response Pathways Often Include:ReceptorIntegrators(CNS)INPUT/stimulusEffectorsOUTPUT/ResponseA. P.E.P.THIS WEEK: REACTION TIMES Stimulus Response Pathways:Begin with a Stimulus:End with a Response:THIS WEEK:STIMULUS RESPONSE PATHWAYSStimulus Response Pathways:Neurons:REACTION TIMESInstruments:–iWorx Unit–Pulse Transducer–Event MarkerREACTION TIMESAudio Stimuli:1. Stimulus Applied3. SubjectRespondsTo Stimulus 2. Subject Hears StimulusREACTION TIMESVisual Stimuli:1.Stimulus Applied3.Subject Sees Stimulus On Computer 4. Subject Responds2. Stimulus AppearsOn The ComputerREACTION TIMESSome Factors That May Contribute To Response Times:THIS WEEK: REFLEXES Stimulus–Response Pathways:Reflexes are the most simple“ In its simplest form, a reflex produces a stereotypical response to a particular sensory stimulus” (Randal et. al 2002)REFLEXESReflexes:OTHER