Sensorimotor systemss

• sensory information


  -the immediate, very brief recording of sensory information in the memory system
• behavior


  The way an organism reacts to changes in its internal condition or external environment.
• stimulation of sense organs

  a process for collecting information about the environment and converting it into neural impulses.
• Perception


  the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events
• Somato-sensation


  touch, proprioception, kinesthesia, pain, temperature
• kinesthetic sense


  perception of the positions in space and movements of our bodies and our limbs
• vestibular sense


  body rotation sense, gravity.
• Basic Principles of sensation


  -physical reality not equal to Psychological reality

  -Active process (not passive diffusion)

  -Relative
• selectivity


  -limited qualitative range of environmental energy is captured

  - biological limitation guided by functional adaptation
• sensitivity


  -limited intensity range of the environment energy is detected

  -biological limitation guided by functional adaptation
• Experience adaptation


  Capture ceases if the environment remains constant.
• Top-down process


  the brain influences capture.
• what is the break down of Physical reality is not equal to psychological reality?

  data reduction
• mechanical modalities


  Touch, Pain, Hearing, Vestibular, Joint, Muscle
• Light modality


  vision
• Thermal modalities


  cold, warmth
• Chemical modalities


  smell, taste, vomeronasal
• Electrical Modalities


  electroreception
• magnetic modality


  magnetoreception
• sensed stimuli of touch

  contact with body surface
• sensed stimuli of pain

  tissue damage; noxious
• sensed stimuli of hearing

  sound vibration in air or water
• sensed stimuli of vestibular


  head movement and orientation
• sensed stimuli of Joint

  position and movements
• sensed stimuli of muscle


  Tension
• sensed stimuli of vision


  Photons, form light sources or reflected from surfaces
• sensed stimuli of cold

  decrease in skin temperature
• sensed stimuli of warmth

  increased in skin temperature
• sensed stimuli of smell

  odorant chemicals in air
• sensed stimuli of taste


  Substances in contact with the otngue or other taste receptors
• sensed stimuli of vomeronasal

  pheromones in air or water
• sensed stimuli of electroreception

  differences in density of electrical currents
• sensed stimuli of magnetoreception


  magnetic field for orientation
• Energies we can select


  pressure, vibration rates, chemical molecules, patterns and temperature (on a certain range for all of this)
• what natural energy is detected in selectivity?

  Cutaneous senses
• Cuntaneous Senses


  mechanical(pressure/vibration), thermal, chemical
• Somatic senses include


  -Mechanical: pressure, vibrations, stretch, fluid movement

  -Temperature: hot, warm, cool, cold

  -chemical: E.g, capsaicin
• what is energy in somatic senses


  -energy is mixed

  -selectivity: each is limited in range
• Touch is the...


  OLDEST SENSORY SYSTEM
• selectivity varies...


  from species to species