Female Flybrain · Her Rooms

Her brain, by its doors

139,255 neurons · 3,641,142 signed connections · 49,307,557 synaptic contacts

2,255,786 excitatory connections and 1,385,356 inhibitory connections, from the sending cell’s sign; 30,263,455 excitatory and 19,044,102 inhibitory contacts. Contacts are recovered from the stored weights at 0.275 mV per contact. This is the filtered, signed graph: pairs with at least five synapses; modulatory and unknown-sign connections are omitted.

What she can sense

Screen light enters L1 and L2 through the hex retina. DoOR odorants enter matching ORN types. Sound enters JO-A and JO-B. These are population counts; a particular odorant does not drive every ORN.

What we read from her

DNa02 steers; DNa01 moves forward; MDN moves back; DNp09 stops. A click means DNp09 reaches click_hz while speed is below 0.25. Proboscis motor cells are recorded as the click readout group, not the trigger. KC → MBON connections change with dopamine; their responses carry learned smell preferences.

What nobody talks to yet

doors in her brain that nothing on our side opens yet

taste

she has 361 taste cells; nothing on the page tastes of anything yet.

compass

47 cells that keep a heading, like a sailor’s compass; no world gives her a heading.

clock

238 cells that keep the day; she does not know what time it is.

weather

103 cells for warmth and humidity; every room is the same temperature.

how these were counted

These entrances receive no direct input from us. The rest of the brain is not given extra sensory input either; cells may still receive activity through the connectome. These annotation searches are a map of named groups, not an exhaustive biological census.

  • taste: 361 cells
  • Matched type gustatory|^GRN or subclass ^(bitter|low-salt|sugar/water|taste_peg|water_PN)$|gustatory (case-insensitive). Labels found: BiT, LB1a, LB1b, LB1c, LB1e, LB2a-b, LB2c, LB2d, LB3, LB4a, TPMN1, TPMN2, bitter, claw_tpGRN, dorsal_tpGRN, low-salt, sugar/water, taste_peg, water_PN.
  • compass: 47 cells
  • Matched type ^EPG$ or subclass ^EPG$ (case-insensitive). Labels found: EPG.
  • clock: 238 cells
  • Matched type ^(5th-LNv|[sl]-LNv|LNd.*|DN1[a-zA-Z-]*|DN2|DN3)$ or subclass ^(LNv|DN1p|DN3)$ (case-insensitive). Labels found: 5th-LNv, APDN3, DN1-l, DN1a, DN1p, DN1pA, DN1pB, DN1pC, DN1pD, DN1pE, DN2, DN3, LNd_CRY+, LNd_CRY+_ITP+, LNd_CRY-, LNv, l-CPDN3, l-LNv, s-CPDN3A, s-CPDN3B, s-CPDN3C, s-CPDN3D, s-CPDN3E, s-LNv.
  • weather: 103 cells
  • Matched type thermo|hygro or subclass ^(cold|cooling|dry|evaporative_cooling|heating|humid|moist)$ (case-insensitive). Labels found: HRN_VP1d, HRN_VP1l, HRN_VP4, HRN_VP5, TRN_VP1m, TRN_VP2, TRN_VP3a, TRN_VP3b, cold, cooling, dry, evaporative_cooling, heating, humid, moist.

How she is tuned

Graph defaults, not a live settings readout; saved roaming gains can override drive and click thresholds.

exc_scale · 0.5 scales excitatory weights; the builder chose the largest tested scale within firing-ceiling and movement limits with both eyes.

click_hz · 100 Hz sets the stopping threshold for clicks; 100 and 120 Hz tied at five clicks in 48 trials, so the builder chose the lower threshold.

drive_hz · 180 Hz caps retinal input so screen brightness has a finite firing-rate range; when absent from the graph, the runtime default is 180 Hz.

The chosen mushroom-body setting scales outgoing weights: PN × 0.5, APL × 10, KC × 0.3. It was chosen for sparse, distinct smell responses and limited changes to roaming. Learning still spreads partly to similar smells.

The whole neighborhood

Cells by superclass, including those with no annotation.