Movement and pleasure

Nucleus accumbens

• basal ganglia- movement control circut

• striatum- 1st imput into basal ganglia

• nucleus accumbens (NAc)- part of straitum circut

  • recives imput from VTA dopamine

• NAc shell

Basil Ganglia (big pic)

• procedural motor learning

• learning to play pino, sports movement aka muscle mem

• motor learning and motor output

• cortex (lots of info) sends converging imputs to straitum

• I

• I

• I

• Gating motor output

  • inhibits movements

  • Direct

    • diinhibits motor output (opens gait)

  • indirect

    • can disinhibit or increase inhibition

    • hyperdirect can also increase inhibition

    • Darts- hit bullsie with dart, motor plan sent to striatum, motor pathway is like did you do it right, that recalcuation movement is indirect pathway

    • hot pan- moment where you reaching for pan but you realize its hot in the middle of reaching is hyperdirect shutting down a movement in real time

  • Dopamine (SNr)

    • inhibit direct

    • excite direct

    • direct role in deciding what options the straitum considers to make it to execution

  • the striatium in the basal ganglia

    • I

  • Na Shell

    • spatial gradent from pleasure (liking) to disliking

    • from wanting/craving

    • fear advodiace

  • Nuclleus accumbens in context of basal ganglia

    • Across use there is a shift on whats activated when stimuli that prediects drug use is actibvated

  • NAc conncetivity

    • all kinds of info goes in

    • dopemgeric signal

    • thirst and food

    • motor planing