Neurons, networks, and behavior


How does light energy falling on the back of our eye get interpreted as a particular image of our friend or a painting or a leaf? How does a cockroach escape imminent predation by a toad? How does a slug remember that a recent poke wasnąt dangerous? How do we remember? A rigorous consideration of general principles of neural integration at the cellular, sensory, central, and motor levels of organization will serve as the groundwork for an examination of such questions of integration. Then we will apply those principles to particular systems including: locust flight, cockroach escape,the role of giant fibers in crayfish behavior, memory and learning in invertebrates and vertebrates, and vertebrate visual systems (from light transduction in the retina through integration in the visual cortex). Students will read appropriate primary literature (both classical and contemporary) and conduct their own research projects.

Syllabus Spring 2012

Online Neuro textbooks

Neuroscience (Purves et al)
        Voltage clamp
        Patch clamp

Neuroscience (University of Texas Medical School)

The Nervous system in action (University of Nebraska Medical University)

Review prior to class

Diffusion potential (Eion )
Basis of resting membrane potential (Em(rest)  )
Active and passive membrane responses
Ionic basis of action potential
Synaptic function (difference between currents and potentials)-neuromuscular junction (synapse) as example
Iion =gion |Em-Eion |

Illustrative systems we will study include:

Evolution of the nervous system:  Cnidarians and the evolutionary origin of the nervous system (2009)

1) cockroach escape
   a) The Escape Behavior of the Cockroach Periplaneta americana I. Turning Response to Wind Puffs (1978)
   b)The Escape Behavior of the Cockroach Periplaneta americana II. Detection of Natural Predators by Air Displacement (1978)
   c) Responses of Giant Interneurons of the Cockroach Periplaneta americana to Wind Puffs of Different Directions and Velocities (1977)
   d) Effect of Static Load on Motor Behavior of the Cockroach Periplaneta americana (2008)
   e) Cockroaches Keep Predators Guessing by Using Preferred Escape Trajectories (2008)
   f) Wasp uses venom cocktail to manipulate the behavior of its cockroach prey (2003)
        Video1
        Video2-a more detailed explanation if you ignore the rampant anthropomorphizing
   g) A Wasp Manipulates Neuronal Activity in the Sub-Esophageal Ganglion to Decrease the Drive for Walking in Its Cockroach Prey (2010)

2) locust flight
    a) D. M. Wilson (1961)-classic paper-locust flight motor
            draw a putative network diagram of the locust flight motor using the data from Wilson
        locust flight handouts
        Video-simulation of locust flight-think about what the different colors mean
    b) Central control of locust flight (2006) sets Wilson's work in historical context
    c) A muscarinic cholinergic mechanism underlies activation of the central pattern generator for locust flight (2008)
            It will help you to make a table of the different putative neurotransmitters, agonists, and antagonists
            From Purves et al

3) crayfish command fibers
     a) Release of coordinated behavior in crayfish by single neurons (1966)-classic paper  
     b) Coordination of Rhythmic Motor Activity by Gradients of Synaptic Strength in a Neural Circuit That Couples Modular Neural Oscillators (2009)

Review of motor commands: Fifty years of CPGs: two neuroethological papers that shaped the course of neuroscience (2010)

4) memory and learning in molluscs-
    Nova video-learning and memory in Aplysia
    Sensitization in Aplysia-slide show from Neurosciences
    Aplysia handout

    a) The Molecular Biology of Memory Storage: A Dialogue Between Genes and Synapses 2001

    b) Learning in Aplysia: looking at synaptic plasticity from both sides 2003
    c) Activity-Dependent Presynaptic Facilitation and Hebbian LTP Are Both Required and Interact during Classical Conditioning in Aplysia 2003
    d) The Biology of Memory: A Forty-Year Perspective - Kandel 2009
    e) Habituation in Aplysia 2009

5) memory and learning in mammals
    a) Differing presynaptic contributions to LTP and associative learning in behaving mice 2009
    b) Structural plasticity and memory 2004
    c) Effects of enriched physical and social environments on motor performance, associative learning, and hippocampal neurogenesis in mice 2010
    d) Synaptic plasticity and addiction 2007
    e) Transition to Addiction Is Associated with a Persistent Impairment in Synaptic Plasticity 2010 supplemental material

6) visual systems

Purves et al
Anatomy of the eye

The formation of images on the retina

The retina

Phototransduction

Functional specialization of the rod and cone systems

Anatomical distribution of rods and cones

Cones and color vision

Retinal Circuits for Detecting Differences in Luminance

Contribution of Retinal Circuits to Light Adaptation
Organization of the Human Trichromatic Cone Mosaic 2005
Frequency-dependent reduction of voltage-gated sodium current 2011

Purves et al
 

Central Projections of Retinal Ganglion Cells (Figs. 12.2, 12.3)

The Retinotopic Representation of the Visual Field (Figs. 12. 4 12. 5, 12. 6)

Visual Field Deficits (Figs. 12.7, 12.8)
The Functional Organization of the Striate Cortex
(Figs. 12.9, 12.10, 12.11)

The Columnar Organization of the Striate Cortex (Figs. 12.12, Box C, 12.13) 

Parallel Streams of Information from Retina to Cortex (Fig. 12.14)

The Functional Organization of Extrastriate Visual Areas (Figs. 12.15, 12.16, 12.17)


Always returning: feedback and sensory processing in visual cortex and thalamus 2006

Highly ordered arrangement of single neurons in orientation pinwheels 2006 supplementary material

     Active flight increases the gain of visual motion processing in Drosophila       

7) Higher integrative CNS processes
    A brief history of human brain mapping 2008
    Dysfunction in the Neural Circuitry of Emotion Regulation‹A Possible Prelude to Violence
    Identifying hallmarks of consciousness in non-mammalian species
    Animal consciousness: a synthetic approach
    Neural correlates of admiration and compassion
    The role of primordial emotions in the evolutionary origin of consciousness

    Social Cognition and the Evolution of Language: Constructing Cognitive Phylogenies (2010)

    Identification of the Social and Cognitive Processes Underlying Human Cumulative Culture (2012) supplementary material


    Desert ant navigation: how miniature brains solve complex tasks (2003)
    Image-matching during ant navigation (2011) supplementary material

    Syntactic processing in the human brain: What we know, what we donąt know, and a suggestion for how to proceed 2011

    Functional specificity in the human brain: A window into the functional architecture of the   
    Separate Processing of Texture and Form in the Ventral Stream: Evidence from fMRI and
     Visual  Agnosia2010

    A critical review of the development of face recognition: Experience is less important than previously believed 2012

    Perception of Face Parts and Face Configurations: An fMRI Study 2009

 


The neurology of consciousness: cognitive neuroscience and neuropathology  By Steven Laureys, Giulio Tononi  GOOGLE BOOKS

Course Requirements: see how to read and facilitate (download this!)
    1-attend all classes and be well-prepared
    2-read assignments AND take notes
    3-browse current journals
    4-in class discussion (facilitate and participate and choose papers) This is a discussion class.  You are to talk to each other during class.
    5-research project

         By midterm:
                -things to consider during proposal presentation
                -research proposal with literature cited -due in class 4/6/12     
                -rubric for research proposal evaluation
         Final work:
                presentation
                poster (instructions)
                paper in format of Journal of Comparative Physiology or Journal of Experimental Biology (instructions)
                rubric for final report

Project ideas
 
Cool papers for project ideas
Effects of aging on behavior and leg kinematics during locomotion in two species of cockroach
The Neural Basis of Dominance Hierarchy Formation in Crayfish
Coordinated Righting Behaviour in Locusts
Use of bilateral information to determine the walking direction during orientation to a pheromone source in the silkmoth Bombyx mori
Intersegmental Coordination: Influence of a Single Walking Leg on the Neighboring Segments in the Stick Insect Walking System
D-amphetamine stimulates unconditioned exploration/approach behaviors in crayfish: Towards a conserved evolutionary function of ancestral drug reward
Drug-sensitive reward in crayfish: An invertebrate model system for the study of SEEKING, reward, addiction, and withdrawal
Neuronal Processing of Chemical Information in Crustaceans
Neuropsychology of Learning and Memory in Teleost Fish
Learning, memorizing and apparent forgetting of chemical cues from new predators by Iberian green frog tadpoles
Correlates of Sleep and Waking in Drosophila melanogaster
Foraging alters resilience/vulnerability to sleep disruption and starvation in Drosophila
The Physiology of the Tettigoniid ear (cricket hearing)
Opercular beat rate for rainbow darters Etheostoma caeruleum exposed to chemical stimuli from conspecific and heterospecific fishes
Aggression in invertebrates