Reflection 80: Here’s the Situation

March 23, 2009

(Copyright © 2009)

 

Memory is situational because consciousness is situational. Everything that happens takes place in the particular circumstances that frame our life worlds at the time. Consciousness is a matter of being alive to our current life situation as the mind configures it.

 

Exhibit A. I am at scout camp the second week in August, 1945. It is Sunday, so there’s nothing to do. The sun is shining. I go for a walk with a friend down a dirt road lined with tall trees. Everything is different somehow. Looking into the sky, I picture a bomb falling, falling, falling. Earlier, at breakfast, I’d seen a story in the camp director’s newspaper about an American plane dropping an A-bomb on Hiroshima, a city in Japan. I don’t know what an A-bomb is, but I know it is bad. I am scared.

 

Exhibit B. I am in eighth grade. The war is over. My father is renting a cinderblock house in Sarasota for a year. My mission is to help dismantle Sarasota Army Air Base, soon to close. On Saturdays, wrench and screwdrivers in my pocket, I ride with bus driver Russ Shin (from his name tag), north to the airfield, but get off where he turns west and the railroad tracks continue north through the swamp. I walk along the tracks, cross a trestle, to the dump in the southeast corner of the airfield. Crawling under the fence, I am among the remains of planes, trucks, and all sorts of military gear. My personal stock pile. I pick up smoke grenades and dye packets. Radio equipment. Skipping the tubes of prophylactic ointment, I climb in the cockpit of a wingless plane and unscrew gauges of all kinds. Gyroscopes! Checking the time, I gather my haul—by now including pilot’s seat and dummy bomb—and head back, loaded much heavier than when I came, along the elevated rail bed through the swamp. What’s that noise? Looking ahead—a locomotive heading my way. No sir, I’m not going to ditch any of this stuff. I can’t go back, I’d miss the bus. And I’m not going into that swamp! Which leaves the bank under the trestle. I figure I can just make it. Flapping and rattling, I plod towards it as fast as I can. The train keeps coming. I keep plodding. Just as the train reaches the trestle, so do I. I taste the heat and smell of the steam as I dive under the tracks onto the bank below, my feet in the water. I feel how fast my heart is beating. No time to sit around. I keep going and meet Russ at the corner. Saying nothing, he just looks at me. When I get home, I put the stuff under my bed. Next day, I use a can opener to take the bottom off one of the smoke grenades. I show it to Jack Tisdale who lives across the street. In his living room, we use a lens to focus sunlight streaming in the window onto the cake of white. Wisps of smoke, then billows. We drop the grenade on the rug and run out the door. Jack tells me later everything in the house is coated with white powder. I am surprised how angry some grownups can get.

 

Exhibit C. For reasons unknown, in 2001, 90% of the eelgrass in Taunton Bay died back. Which is an ecological tragedy because eelgrass beds provide habitat for all manner of sea creatures including cod, flounder, crabs, periwinkles, and amphipods. I’ve been worrying that bone for seven years. What I know through personal experience is that no sea lavender appeared that year, periwinkles died by tens of thousands, the water was cloudy, ledges were extremely slippery as if coated with slime, and Maine had the lowest rainfall in 111 years. Looking at photographs from earlier years, I saw that eelgrass reached maximum extent and density in 1973, year of the heaviest snowmelt since records have been kept. Since 1992, I’ve flown aerial overflights to check on eelgrass in the bay. It was down in the 1980s, as it was in the drought years of the 1930s, but making a nice recovery throughout the 1990s. Boaters noticed how thick it was getting because it clogged their propellers. Then in 2001 it crashed. And only now in 2008 and 2009 is slowly coming back in some places but not others.

I’ve been trying to make myself conscious of the circumstances which prevailed in 2001 so I could accurately characterize the situation and figure out what the significant variables might have been that led to the dieback. What I notice from aerial photographs is that eelgrass is recovering in areas fed by both salt- and freshwater. That is, where the bay is brackish, as in stream channels and where melt- and rainwater flow off the land. The dieback, I think now, has something to do with the amount of salt in the water flowing over the eelgrass beds. Salinity is highly variable in Taunton Bay, ranging from pure fresh water on the flats at low tide (when it rains) to the salty flows coming over the reversing falls from Frenchman Bay and the Gulf of Maine beyond.

I now believe the eelgrass dieback was triggered by the drought that reached its peak in 2001, causing slight dilution and unusually high salinities, allowing eelgrass dieback disease to flourish whereas runoff and rainfall usually moderate the salinity, and thus keep the ever-present disease organisms in check. This makes sense because Taunton Bay is a closed bay largely surrounded by land (unlike open bays which are subject to greater flushing by marine waters), so periods of low runoff and rainfall produce pronounced changes in salinity. Too, global warming may have given the disease organism a significant boost in 2001.

By this exercise I have approximated the consciousness I might have had in 2001 if I had kept track of all that was going on in the world of local eelgrass beds at the time. By doing my best to recreate those conditions, I have tried to make myself aware of the prevailing situation that led to the decline. At least I can make an educated guess with more certainty than I could have when I didn’t know how much I didn’t know.

 

The larger question remaining is where in the brain does situational consciousness come together as a gateway to both situational memory and informed behavior which is more-or-less appropriate to the circumstances within which it arises? The anterior cingulate cortex (see Reflection 60: Discovery) receives all the appropriate inputs (motivational, emotional, sensory, cognitive, remembered, anticipatory) as well as direct input from peripheral eye fields (what we see out of the corner of our eye), feeding forward to motor planning and execution areas of the frontal lobe. The locus where these various strands of consciousness come together could well serve as the seat of both situational consciousness and—when arousal is sufficient—situational memory (by a perhaps less direct route).

 

This is conjecture on my part. Maybe it has some heuristic value. My contribution is the details I glean through introspection, which animal and clinical studies generally do not provide. I offer it in this blog to give the world a chance to judge what it is worth. For me the reward is in the pursuit of understanding while I still have a mind to keep me entertained.

 

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2 Responses to “Reflection 80: Here’s the Situation”

  1. tp said

    I do recall Mrs Tisdale running out of her house into Grant Drive in something like controlled panic when the smoke bomb (which I never saw) went off. She was a mother of five or six kids and probably thought she’d already seen it all — surprise!

    I also remember Russ Shinn. He wasn’t a bad looking guy but what I remember is very bug eyes. Sorry, Russ, but that’s your only distinctive attribute to make it down the years to 2009.

    Your description of going onto the airbase is full of good details. A lot happened that year to each of us. Am I right the airplane seat ended up on the Island in a smelt shack?

  2. Steve Perrin said

    The smoke bomb looked like a tin can painted gray. The firing mechanism failed–that’s why it was in the dump. I used a can opener to get at the innards, and clearly remember using a magnifying glass to focus sunlight on it “to see what would happen.” I soon found out, as did Mrs. T. Jack showed up in my class at MIT.

    I remember standing up in the bus without holding on–at least riding out to the base. In those days my legs flexed better than they do today.

    And yes, the seat was in the smelt shack–I don’t remember how it actually made the trip along the entire East Coast.

    Steve from Planet Earth

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